Index names consistently set to "alt" for alternatives files#1018

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Merged
jpn-- merged 14 commits into from
Jan 8, 2026
Merged

Index names consistently set to "alt" for alternatives files #1018

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21f3a1e
"alt" now used as index in all alternatives modules
juangacosta Nov 10, 2025
30c3d5b
formatting
juangacosta Nov 10, 2025
4277326
Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…
juangacosta Nov 10, 2025
f81dbaf
Merge remote-tracking branch 'upstream/main' into alt_file_formatting
dhensle Nov 13, 2025
007f725
minor commenting
dhensle Nov 13, 2025
0b53853
using stable sorting for unit test
dhensle Nov 13, 2025
ef03e94
Merge branch 'main' into alt_file_formatting
jpn-- Dec 2, 2025
79a26e1
adding to change log
dhensle Dec 11, 2025
625f685
updating school escort bundle Alt to alt
dhensle Dec 11, 2025
1e8053e
Merge remote-tracking branch 'upstream/main' into alt_file_formatting
dhensle Dec 12, 2025
0a6f783
typo
jpn-- Dec 18, 2025
43c3f80
Revert "updating school escort bundle Alt to alt"
jpn-- Jan 8, 2026
e80a6b5
regenerate pipeline
jpn-- Jan 8, 2026
5746fe4
Merge branch 'main' into alt_file_formatting
jpn-- Jan 8, 2026
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4 changes: 1 addition & 3 deletions activitysim/abm/models/joint_tour_frequency_composition.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
model_settings_file_name,
)

# FIXME setting index as "alt" causes crash in estimation mode...
alts = simulate.read_model_alts(
state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
)
alts.index = alts["alt"].values

# - only interested in households with more than one cdap travel_active person and
# - at least one non-preschooler
Expand Down
14 changes: 5 additions & 9 deletions activitysim/abm/models/school_escorting.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
bundles["chauf_id"],
)

bundles["Alt"] = choosers["Alt"]
bundles["alt"] = choosers["alt"]
bundles["Description"] = choosers["Description"]

return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

trace_hh_id = state.settings.trace_hh_id

# FIXME setting index as "Alt" causes crash in estimation mode...
# happens in joint_tour_frequency_composition too!
# alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
alts.index = alts["Alt"].values
alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

choosers, participant_columns = determine_escorting_participants(
households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
)

if stage_num >= 1:
choosers["Alt"] = choices
choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
choosers["alt"] = choices
choosers = choosers.join(alts, how="left", on="alt")
bundles = create_school_escorting_bundles_table(
choosers[choosers["Alt"] > 1], tours, stage
choosers[choosers["alt"] > 1], tours, stage
)
escort_bundles.append(bundles)

Expand Down
15 changes: 15 additions & 0 deletions activitysim/core/simulate.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
file_path = state.filesystem.get_config_file_path(file_name)
df = pd.read_csv(file_path, comment="#")
if set_index:
if "Alt" in df.columns:
# Handle deprecated ALTS index
warnings.warn(
"Support for 'Alt' column name in alternatives files will be removed."
" Use 'alt' (lowercase) instead.",
DeprecationWarning,
)
# warning above does not actually output to logger, so also log it
logger.warning(
"Support for 'Alt' column name in alternatives files will be removed."
" Use 'alt' (lowercase) instead."
)
df.rename(columns={"Alt": "alt"}, inplace=True)

df.set_index(set_index, inplace=True)

return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip
View file
Open in desktop
Binary file not shown.
8 changes: 8 additions & 0 deletions docs/dev-guide/changes.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
Index names consistently set to "alt" for alternatives files#1018

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to your account

 Merged

jpn--
merged 14 commits into

from

Jan 8, 2026
 Merged


Index names consistently set to "alt" for alternatives files
#1018
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21f3a1e

"alt" now used as index in all alternatives modules


juangacosta Nov 10, 2025
30c3d5b

formatting


juangacosta Nov 10, 2025
4277326

Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…


juangacosta Nov 10, 2025
f81dbaf

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Nov 13, 2025
007f725

minor commenting


dhensle Nov 13, 2025
0b53853

using stable sorting for unit test


dhensle Nov 13, 2025
ef03e94

Merge branch 'main' into alt_file_formatting


jpn-- Dec 2, 2025
79a26e1

adding to change log


dhensle Dec 11, 2025
625f685

updating school escort bundle Alt to alt


dhensle Dec 11, 2025
1e8053e

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Dec 12, 2025
0a6f783

typo


jpn-- Dec 18, 2025
43c3f80

Revert "updating school escort bundle Alt to alt"


jpn-- Jan 8, 2026
e80a6b5

regenerate pipeline


jpn-- Jan 8, 2026
5746fe4

Merge branch 'main' into alt_file_formatting


jpn-- Jan 8, 2026

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4 changes: 1 addition & 3 deletions
activitysim/abm/models/joint_tour_frequency_composition.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
 model_settings_file_name,
 )

 # FIXME setting index as "alt" causes crash in estimation mode...
 alts = simulate.read_model_alts(
 state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
 state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
 )
 alts.index = alts["alt"].values

 # - only interested in households with more than one cdap travel_active person and
 # - at least one non-preschooler
Expand Down

14 changes: 5 additions & 9 deletions
activitysim/abm/models/school_escorting.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
 bundles["chauf_id"],
 )

 bundles["Alt"] = choosers["Alt"]
 bundles["alt"] = choosers["alt"]
 bundles["Description"] = choosers["Description"]

 return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

 trace_hh_id = state.settings.trace_hh_id

 # FIXME setting index as "Alt" causes crash in estimation mode...
 # happens in joint_tour_frequency_composition too!
 # alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
 alts.index = alts["Alt"].values
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

 choosers, participant_columns = determine_escorting_participants(
 households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
 )

 if stage_num >= 1:
 choosers["Alt"] = choices
 choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
 choosers["alt"] = choices
 choosers = choosers.join(alts, how="left", on="alt")
 bundles = create_school_escorting_bundles_table(
 choosers[choosers["Alt"] > 1], tours, stage
 choosers[choosers["alt"] > 1], tours, stage
 )
 escort_bundles.append(bundles)

Expand Down

15 changes: 15 additions & 0 deletions
activitysim/core/simulate.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
 file_path = state.filesystem.get_config_file_path(file_name)
 df = pd.read_csv(file_path, comment="#")
 if set_index:
 if "Alt" in df.columns:
 # Handle deprecated ALTS index
 warnings.warn(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead.",
 DeprecationWarning,
 )
 # warning above does not actually output to logger, so also log it
 logger.warning(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead."
 )
 df.rename(columns={"Alt": "alt"}, inplace=True)

 df.set_index(set_index, inplace=True)

 return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip

View file


Open in desktop


Binary file not shown.


8 changes: 8 additions & 0 deletions
docs/dev-guide/changes.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Index names consistently set to "alt" for alternatives files#1018

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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privacy statement. We’ll occasionally send you account related emails.

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 Merged

jpn--
merged 14 commits into

from

Jan 8, 2026
 Merged


Index names consistently set to "alt" for alternatives files
#1018
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21f3a1e

"alt" now used as index in all alternatives modules


juangacosta Nov 10, 2025
30c3d5b

formatting


juangacosta Nov 10, 2025
4277326

Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…


juangacosta Nov 10, 2025
f81dbaf

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Nov 13, 2025
007f725

minor commenting


dhensle Nov 13, 2025
0b53853

using stable sorting for unit test


dhensle Nov 13, 2025
ef03e94

Merge branch 'main' into alt_file_formatting


jpn-- Dec 2, 2025
79a26e1

adding to change log


dhensle Dec 11, 2025
625f685

updating school escort bundle Alt to alt


dhensle Dec 11, 2025
1e8053e

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Dec 12, 2025
0a6f783

typo


jpn-- Dec 18, 2025
43c3f80

Revert "updating school escort bundle Alt to alt"


jpn-- Jan 8, 2026
e80a6b5

regenerate pipeline


jpn-- Jan 8, 2026
5746fe4

Merge branch 'main' into alt_file_formatting


jpn-- Jan 8, 2026

File filter

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4 changes: 1 addition & 3 deletions
activitysim/abm/models/joint_tour_frequency_composition.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
 model_settings_file_name,
 )

 # FIXME setting index as "alt" causes crash in estimation mode...
 alts = simulate.read_model_alts(
 state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
 state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
 )
 alts.index = alts["alt"].values

 # - only interested in households with more than one cdap travel_active person and
 # - at least one non-preschooler
Expand Down

14 changes: 5 additions & 9 deletions
activitysim/abm/models/school_escorting.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
 bundles["chauf_id"],
 )

 bundles["Alt"] = choosers["Alt"]
 bundles["alt"] = choosers["alt"]
 bundles["Description"] = choosers["Description"]

 return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

 trace_hh_id = state.settings.trace_hh_id

 # FIXME setting index as "Alt" causes crash in estimation mode...
 # happens in joint_tour_frequency_composition too!
 # alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
 alts.index = alts["Alt"].values
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

 choosers, participant_columns = determine_escorting_participants(
 households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
 )

 if stage_num >= 1:
 choosers["Alt"] = choices
 choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
 choosers["alt"] = choices
 choosers = choosers.join(alts, how="left", on="alt")
 bundles = create_school_escorting_bundles_table(
 choosers[choosers["Alt"] > 1], tours, stage
 choosers[choosers["alt"] > 1], tours, stage
 )
 escort_bundles.append(bundles)

Expand Down

15 changes: 15 additions & 0 deletions
activitysim/core/simulate.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
 file_path = state.filesystem.get_config_file_path(file_name)
 df = pd.read_csv(file_path, comment="#")
 if set_index:
 if "Alt" in df.columns:
 # Handle deprecated ALTS index
 warnings.warn(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead.",
 DeprecationWarning,
 )
 # warning above does not actually output to logger, so also log it
 logger.warning(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead."
 )
 df.rename(columns={"Alt": "alt"}, inplace=True)

 df.set_index(set_index, inplace=True)

 return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip

View file


Open in desktop


Binary file not shown.


8 changes: 8 additions & 0 deletions
docs/dev-guide/changes.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Index names consistently set to "alt" for alternatives files#1018

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 Merged

jpn--
merged 14 commits into

from

Jan 8, 2026
 Merged


Index names consistently set to "alt" for alternatives files
#1018
Show file tree
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Hold shift + click to select a range
21f3a1e

"alt" now used as index in all alternatives modules


juangacosta Nov 10, 2025
30c3d5b

formatting


juangacosta Nov 10, 2025
4277326

Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…


juangacosta Nov 10, 2025
f81dbaf

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Nov 13, 2025
007f725

minor commenting


dhensle Nov 13, 2025
0b53853

using stable sorting for unit test


dhensle Nov 13, 2025
ef03e94

Merge branch 'main' into alt_file_formatting


jpn-- Dec 2, 2025
79a26e1

adding to change log


dhensle Dec 11, 2025
625f685

updating school escort bundle Alt to alt


dhensle Dec 11, 2025
1e8053e

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Dec 12, 2025
0a6f783

typo


jpn-- Dec 18, 2025
43c3f80

Revert "updating school escort bundle Alt to alt"


jpn-- Jan 8, 2026
e80a6b5

regenerate pipeline


jpn-- Jan 8, 2026
5746fe4

Merge branch 'main' into alt_file_formatting


jpn-- Jan 8, 2026

File filter

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4 changes: 1 addition & 3 deletions
activitysim/abm/models/joint_tour_frequency_composition.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
 model_settings_file_name,
 )

 # FIXME setting index as "alt" causes crash in estimation mode...
 alts = simulate.read_model_alts(
 state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
 state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
 )
 alts.index = alts["alt"].values

 # - only interested in households with more than one cdap travel_active person and
 # - at least one non-preschooler
Expand Down

14 changes: 5 additions & 9 deletions
activitysim/abm/models/school_escorting.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
 bundles["chauf_id"],
 )

 bundles["Alt"] = choosers["Alt"]
 bundles["alt"] = choosers["alt"]
 bundles["Description"] = choosers["Description"]

 return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

 trace_hh_id = state.settings.trace_hh_id

 # FIXME setting index as "Alt" causes crash in estimation mode...
 # happens in joint_tour_frequency_composition too!
 # alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
 alts.index = alts["Alt"].values
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

 choosers, participant_columns = determine_escorting_participants(
 households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
 )

 if stage_num >= 1:
 choosers["Alt"] = choices
 choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
 choosers["alt"] = choices
 choosers = choosers.join(alts, how="left", on="alt")
 bundles = create_school_escorting_bundles_table(
 choosers[choosers["Alt"] > 1], tours, stage
 choosers[choosers["alt"] > 1], tours, stage
 )
 escort_bundles.append(bundles)

Expand Down

15 changes: 15 additions & 0 deletions
activitysim/core/simulate.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
 file_path = state.filesystem.get_config_file_path(file_name)
 df = pd.read_csv(file_path, comment="#")
 if set_index:
 if "Alt" in df.columns:
 # Handle deprecated ALTS index
 warnings.warn(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead.",
 DeprecationWarning,
 )
 # warning above does not actually output to logger, so also log it
 logger.warning(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead."
 )
 df.rename(columns={"Alt": "alt"}, inplace=True)

 df.set_index(set_index, inplace=True)

 return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip

View file


Open in desktop


Binary file not shown.


8 changes: 8 additions & 0 deletions
docs/dev-guide/changes.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
Index names consistently set to "alt" for alternatives files#1018

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 Merged

jpn--
merged 14 commits into

from

Jan 8, 2026
 Merged


Index names consistently set to "alt" for alternatives files
#1018
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21f3a1e

"alt" now used as index in all alternatives modules


juangacosta Nov 10, 2025
30c3d5b

formatting


juangacosta Nov 10, 2025
4277326

Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…


juangacosta Nov 10, 2025
f81dbaf

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Nov 13, 2025
007f725

minor commenting


dhensle Nov 13, 2025
0b53853

using stable sorting for unit test


dhensle Nov 13, 2025
ef03e94

Merge branch 'main' into alt_file_formatting


jpn-- Dec 2, 2025
79a26e1

adding to change log


dhensle Dec 11, 2025
625f685

updating school escort bundle Alt to alt


dhensle Dec 11, 2025
1e8053e

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Dec 12, 2025
0a6f783

typo


jpn-- Dec 18, 2025
43c3f80

Revert "updating school escort bundle Alt to alt"


jpn-- Jan 8, 2026
e80a6b5

regenerate pipeline


jpn-- Jan 8, 2026
5746fe4

Merge branch 'main' into alt_file_formatting


jpn-- Jan 8, 2026

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4 changes: 1 addition & 3 deletions
activitysim/abm/models/joint_tour_frequency_composition.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
 model_settings_file_name,
 )

 # FIXME setting index as "alt" causes crash in estimation mode...
 alts = simulate.read_model_alts(
 state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
 state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
 )
 alts.index = alts["alt"].values

 # - only interested in households with more than one cdap travel_active person and
 # - at least one non-preschooler
Expand Down

14 changes: 5 additions & 9 deletions
activitysim/abm/models/school_escorting.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
 bundles["chauf_id"],
 )

 bundles["Alt"] = choosers["Alt"]
 bundles["alt"] = choosers["alt"]
 bundles["Description"] = choosers["Description"]

 return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

 trace_hh_id = state.settings.trace_hh_id

 # FIXME setting index as "Alt" causes crash in estimation mode...
 # happens in joint_tour_frequency_composition too!
 # alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
 alts.index = alts["Alt"].values
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

 choosers, participant_columns = determine_escorting_participants(
 households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
 )

 if stage_num >= 1:
 choosers["Alt"] = choices
 choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
 choosers["alt"] = choices
 choosers = choosers.join(alts, how="left", on="alt")
 bundles = create_school_escorting_bundles_table(
 choosers[choosers["Alt"] > 1], tours, stage
 choosers[choosers["alt"] > 1], tours, stage
 )
 escort_bundles.append(bundles)

Expand Down

15 changes: 15 additions & 0 deletions
activitysim/core/simulate.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
 file_path = state.filesystem.get_config_file_path(file_name)
 df = pd.read_csv(file_path, comment="#")
 if set_index:
 if "Alt" in df.columns:
 # Handle deprecated ALTS index
 warnings.warn(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead.",
 DeprecationWarning,
 )
 # warning above does not actually output to logger, so also log it
 logger.warning(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead."
 )
 df.rename(columns={"Alt": "alt"}, inplace=True)

 df.set_index(set_index, inplace=True)

 return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip

View file


Open in desktop


Binary file not shown.


8 changes: 8 additions & 0 deletions
docs/dev-guide/changes.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Index names consistently set to "alt" for alternatives files#1018

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
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to your account

 Merged

jpn--
merged 14 commits into

from

Jan 8, 2026
 Merged


Index names consistently set to "alt" for alternatives files
#1018
Show file tree
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14 commits


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21f3a1e

"alt" now used as index in all alternatives modules


juangacosta Nov 10, 2025
30c3d5b

formatting


juangacosta Nov 10, 2025
4277326

Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…


juangacosta Nov 10, 2025
f81dbaf

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Nov 13, 2025
007f725

minor commenting


dhensle Nov 13, 2025
0b53853

using stable sorting for unit test


dhensle Nov 13, 2025
ef03e94

Merge branch 'main' into alt_file_formatting


jpn-- Dec 2, 2025
79a26e1

adding to change log


dhensle Dec 11, 2025
625f685

updating school escort bundle Alt to alt


dhensle Dec 11, 2025
1e8053e

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Dec 12, 2025
0a6f783

typo


jpn-- Dec 18, 2025
43c3f80

Revert "updating school escort bundle Alt to alt"


jpn-- Jan 8, 2026
e80a6b5

regenerate pipeline


jpn-- Jan 8, 2026
5746fe4

Merge branch 'main' into alt_file_formatting


jpn-- Jan 8, 2026

File filter

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4 changes: 1 addition & 3 deletions
activitysim/abm/models/joint_tour_frequency_composition.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
 model_settings_file_name,
 )

 # FIXME setting index as "alt" causes crash in estimation mode...
 alts = simulate.read_model_alts(
 state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
 state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
 )
 alts.index = alts["alt"].values

 # - only interested in households with more than one cdap travel_active person and
 # - at least one non-preschooler
Expand Down

14 changes: 5 additions & 9 deletions
activitysim/abm/models/school_escorting.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
 bundles["chauf_id"],
 )

 bundles["Alt"] = choosers["Alt"]
 bundles["alt"] = choosers["alt"]
 bundles["Description"] = choosers["Description"]

 return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

 trace_hh_id = state.settings.trace_hh_id

 # FIXME setting index as "Alt" causes crash in estimation mode...
 # happens in joint_tour_frequency_composition too!
 # alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
 alts.index = alts["Alt"].values
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

 choosers, participant_columns = determine_escorting_participants(
 households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
 )

 if stage_num >= 1:
 choosers["Alt"] = choices
 choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
 choosers["alt"] = choices
 choosers = choosers.join(alts, how="left", on="alt")
 bundles = create_school_escorting_bundles_table(
 choosers[choosers["Alt"] > 1], tours, stage
 choosers[choosers["alt"] > 1], tours, stage
 )
 escort_bundles.append(bundles)

Expand Down

15 changes: 15 additions & 0 deletions
activitysim/core/simulate.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
 file_path = state.filesystem.get_config_file_path(file_name)
 df = pd.read_csv(file_path, comment="#")
 if set_index:
 if "Alt" in df.columns:
 # Handle deprecated ALTS index
 warnings.warn(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead.",
 DeprecationWarning,
 )
 # warning above does not actually output to logger, so also log it
 logger.warning(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead."
 )
 df.rename(columns={"Alt": "alt"}, inplace=True)

 df.set_index(set_index, inplace=True)

 return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip

View file


Open in desktop


Binary file not shown.


8 changes: 8 additions & 0 deletions
docs/dev-guide/changes.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Index names consistently set to "alt" for alternatives files#1018

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
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 Merged

jpn--
merged 14 commits into

from

Jan 8, 2026
 Merged


Index names consistently set to "alt" for alternatives files
#1018
Show file tree
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14 commits


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Hold shift + click to select a range
21f3a1e

"alt" now used as index in all alternatives modules


juangacosta Nov 10, 2025
30c3d5b

formatting


juangacosta Nov 10, 2025
4277326

Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…


juangacosta Nov 10, 2025
f81dbaf

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Nov 13, 2025
007f725

minor commenting


dhensle Nov 13, 2025
0b53853

using stable sorting for unit test


dhensle Nov 13, 2025
ef03e94

Merge branch 'main' into alt_file_formatting


jpn-- Dec 2, 2025
79a26e1

adding to change log


dhensle Dec 11, 2025
625f685

updating school escort bundle Alt to alt


dhensle Dec 11, 2025
1e8053e

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Dec 12, 2025
0a6f783

typo


jpn-- Dec 18, 2025
43c3f80

Revert "updating school escort bundle Alt to alt"


jpn-- Jan 8, 2026
e80a6b5

regenerate pipeline


jpn-- Jan 8, 2026
5746fe4

Merge branch 'main' into alt_file_formatting


jpn-- Jan 8, 2026

File filter

Filter by extension
Filter by extension
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4 changes: 1 addition & 3 deletions
activitysim/abm/models/joint_tour_frequency_composition.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
 model_settings_file_name,
 )

 # FIXME setting index as "alt" causes crash in estimation mode...
 alts = simulate.read_model_alts(
 state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
 state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
 )
 alts.index = alts["alt"].values

 # - only interested in households with more than one cdap travel_active person and
 # - at least one non-preschooler
Expand Down

14 changes: 5 additions & 9 deletions
activitysim/abm/models/school_escorting.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
 bundles["chauf_id"],
 )

 bundles["Alt"] = choosers["Alt"]
 bundles["alt"] = choosers["alt"]
 bundles["Description"] = choosers["Description"]

 return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

 trace_hh_id = state.settings.trace_hh_id

 # FIXME setting index as "Alt" causes crash in estimation mode...
 # happens in joint_tour_frequency_composition too!
 # alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
 alts.index = alts["Alt"].values
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

 choosers, participant_columns = determine_escorting_participants(
 households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
 )

 if stage_num >= 1:
 choosers["Alt"] = choices
 choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
 choosers["alt"] = choices
 choosers = choosers.join(alts, how="left", on="alt")
 bundles = create_school_escorting_bundles_table(
 choosers[choosers["Alt"] > 1], tours, stage
 choosers[choosers["alt"] > 1], tours, stage
 )
 escort_bundles.append(bundles)

Expand Down

15 changes: 15 additions & 0 deletions
activitysim/core/simulate.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
 file_path = state.filesystem.get_config_file_path(file_name)
 df = pd.read_csv(file_path, comment="#")
 if set_index:
 if "Alt" in df.columns:
 # Handle deprecated ALTS index
 warnings.warn(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead.",
 DeprecationWarning,
 )
 # warning above does not actually output to logger, so also log it
 logger.warning(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead."
 )
 df.rename(columns={"Alt": "alt"}, inplace=True)

 df.set_index(set_index, inplace=True)

 return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip

View file


Open in desktop


Binary file not shown.


8 changes: 8 additions & 0 deletions
docs/dev-guide/changes.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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 Merged

jpn--
merged 14 commits into

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Jan 8, 2026
 Merged


Index names consistently set to "alt" for alternatives files
#1018
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21f3a1e

"alt" now used as index in all alternatives modules


juangacosta Nov 10, 2025
30c3d5b

formatting


juangacosta Nov 10, 2025
4277326

Merge branch 'main' of https://github.com/RSGInc/activitysim into alt…


juangacosta Nov 10, 2025
f81dbaf

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Nov 13, 2025
007f725

minor commenting


dhensle Nov 13, 2025
0b53853

using stable sorting for unit test


dhensle Nov 13, 2025
ef03e94

Merge branch 'main' into alt_file_formatting


jpn-- Dec 2, 2025
79a26e1

adding to change log


dhensle Dec 11, 2025
625f685

updating school escort bundle Alt to alt


dhensle Dec 11, 2025
1e8053e

Merge remote-tracking branch 'upstream/main' into alt_file_formatting


dhensle Dec 12, 2025
0a6f783

typo


jpn-- Dec 18, 2025
43c3f80

Revert "updating school escort bundle Alt to alt"


jpn-- Jan 8, 2026
e80a6b5

regenerate pipeline


jpn-- Jan 8, 2026
5746fe4

Merge branch 'main' into alt_file_formatting


jpn-- Jan 8, 2026

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4 changes: 1 addition & 3 deletions
activitysim/abm/models/joint_tour_frequency_composition.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -44,11 +44,9 @@ def joint_tour_frequency_composition(
 model_settings_file_name,
 )

 # FIXME setting index as "alt" causes crash in estimation mode...
 alts = simulate.read_model_alts(
 state, "joint_tour_frequency_composition_alternatives.csv", set_index=None
 state, "joint_tour_frequency_composition_alternatives.csv", set_index="alt"
 )
 alts.index = alts["alt"].values

 # - only interested in households with more than one cdap travel_active person and
 # - at least one non-preschooler
Expand Down

14 changes: 5 additions & 9 deletions
activitysim/abm/models/school_escorting.py

View file


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Original file line numberDiff line numberDiff line change
Expand Up@@ -308,7 +308,7 @@ def create_school_escorting_bundles_table(choosers, tours, stage):
 bundles["chauf_id"],
 )

 bundles["Alt"] = choosers["Alt"]
 bundles["alt"] = choosers["alt"]
 bundles["Description"] = choosers["Description"]

 return bundles
Expand DownExpand Up@@ -412,11 +412,7 @@ def school_escorting(

 trace_hh_id = state.settings.trace_hh_id

 # FIXME setting index as "Alt" causes crash in estimation mode...
 # happens in joint_tour_frequency_composition too!
 # alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="Alt")
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index=None)
 alts.index = alts["Alt"].values
 alts = simulate.read_model_alts(state, model_settings.ALTS, set_index="alt")

 choosers, participant_columns = determine_escorting_participants(
 households_merged, persons, model_settings
Expand DownExpand Up@@ -565,10 +561,10 @@ def school_escorting(
 )

 if stage_num >= 1:
 choosers["Alt"] = choices
 choosers = choosers.join(alts.set_index("Alt"), how="left", on="Alt")
 choosers["alt"] = choices
 choosers = choosers.join(alts, how="left", on="alt")
 bundles = create_school_escorting_bundles_table(
 choosers[choosers["Alt"] > 1], tours, stage
 choosers[choosers["alt"] > 1], tours, stage
 )
 escort_bundles.append(bundles)

Expand Down

15 changes: 15 additions & 0 deletions
activitysim/core/simulate.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -79,7 +79,22 @@ def read_model_alts(state: workflow.State, file_name, set_index=None):
 file_path = state.filesystem.get_config_file_path(file_name)
 df = pd.read_csv(file_path, comment="#")
 if set_index:
 if "Alt" in df.columns:
 # Handle deprecated ALTS index
 warnings.warn(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead.",
 DeprecationWarning,
 )
 # warning above does not actually output to logger, so also log it
 logger.warning(
 "Support for 'Alt' column name in alternatives files will be removed."
 " Use 'alt' (lowercase) instead."
 )
 df.rename(columns={"Alt": "alt"}, inplace=True)

 df.set_index(set_index, inplace=True)

 return df


Expand Down
Binary file modified...itysim/examples/prototype_mtc_extended/test/prototype_mtc_extended_reference_pipeline.zip

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8 changes: 8 additions & 0 deletions
docs/dev-guide/changes.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -13,6 +13,14 @@ branch (i.e., the main branch on GitHub), but not yet released in a stable versi
of ActivitySim. See below under the various version headings for changes in
released versions.

### Alternative file naming consistency

We have enforced a naming scheme for alternative config files to have the index name
be 'alt' instead of 'Alt'. This is to maintain consistency across all config files.
The code will handle this for you, but you will get a deprecation warning if you
are using 'Alt' in your config files. Please update your config files to use 'alt'.
See ActivitySim issue [#846](https://github.com/ActivitySim/activitysim/issues/846)

### CDAP Estimation Mode

A bug has been fixed in the Larch portion of code for the re-estimation of CDAP
Expand Down
Loading