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Feed status · checked 2026-10-02

Alameda-Contra Costa Transit District (AC Transit)

Based on the feed source on file; publisher ownership is not verified

Service mode Bus

FDCBA

85.0 / 100

First scorecard for this agency

Cataloged in California.

Covers 183 daysAccessibility gapsRealtime not yet published

A data-quality and completeness lens to help an agency improve its GTFS feed. Not an official compliance determination from any transit program. New to this? How to read your scorecard. Interactive view of this scorecard. Rubric v1.4, validator 8.0.1.

Checked for changes 32 minutes ago; last changed 32 minutes ago.

Measured 3 of 4 score categories from the feed URL on file (publisher not verified).

How we measured this

Confidence in this measurement: medium.

Realtime quality was not measured this run. It does not count against the grade.
The feed was downloaded from the configured feed URL. Publisher ownership of that URL is not verified.

Confidence describes how much the pipeline could measure this run, not the feed itself. It never changes the grade.

Top things to fix

Fix 01

Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.Likely your team

4692 of 4692 stops don't say whether a wheelchair user can board there. Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.

Fixing this covers all 4,692 stops in the feed.

⏱ A column in stops.txt; your scheduling software likely has it.worth about +25 points in its category

Fix 02

Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.Likely your export tool

13695 of 13695 trips don't say whether the vehicle is wheelchair accessible. Even with accessible stops, riders need to know the bus itself can take them.

Fixing this covers all 13,695 trips in the feed.

⏱ A default or per-trip field in your export.worth about +15 points in its category

Fix 03

Use mixed case for stop names and headsigns (e.g. 'Main St & 2nd Ave', not 'MAIN ST & 2ND AVE').Likely your export tool

Some rider-facing names are in ALL CAPS or all lowercase. ALL-CAPS stop and headsign names are harder to read in apps and are read awkwardly by screen readers.

This is a validator notice, and the validator decides what each instance covers, so no share of the network can be read from it here.

⏱ Often a bulk fix in your scheduling software.worth about +4 points in its category

Riders and need behind these fixes

No ridership snapshot was on hand when this was built, so annual rider-trips are not known.
California as a whole measures lower on transit need. That is a statewide reading, not one for this feed's service area. Source: US Census ACS 5-year 2022, statewide overlay, as of 2026-09-28.

These describe this feed only. They do not rank agencies, and they do not change the grade or the order of the fixes.

Finding handoff

Move one finding to a recheck

Select one finding. Copy the request, make the change in the feed-producing tool, then compare the next complete run.

Feed evidence: 4692 of 4692 stops don't say whether a wheelchair user can board there.
Next action: Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
Recheck: Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.

Copy handoff text

Agency: Alameda-Contra Costa Transit District (AC Transit)
Finding: scorecard_wheelchair_boarding_unknown
Feed evidence: 4692 of 4692 stops don't say whether a wheelchair user can board there.
Why it matters: Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.
Requested change: Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
Recheck: Publish the changed feed at the same URL. On the next complete, comparable scorecard run, confirm that this finding is no longer reported.
Evidence: https://gtfsscorecard.org/agency/ac-transit/?finding=scorecard_wheelchair_boarding_unknown#finding-handoff

How to make and check these changes

Check the result on the published feed. Read the guide, make the change in your tool, and use the next comparable run to see whether the finding is still reported. Only an action or ticket record can attribute who made the change.

Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops. · Read the fix guide for scorecard_wheelchair_boarding_unknown
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.
Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip. · Read the fix guide for scorecard_wheelchair_accessible_unknown
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.
Use mixed case for stop names and headsigns (e.g. 'Main St & 2nd Ave', not 'MAIN ST & 2ND AVE'). · Read the fix guide for mixed_case_recommended_field
Make the change. Make this change in whatever tool produces your feed, then re-export.
Check the result. The next scorecard run checks this finding again. If a comparable check no longer reports it, the feed's clearance log records that result. This confirms feed state, not who made the change. Self-check a feed before you publish.

Rider view: what this feed publishes

A quick read of rider-facing information in this feed.

Schedule visibility: The feed's last published service date is in 183 days.
Published accessibility data: Accessibility information is stated for 0% of stops and 0% of trips. This measures published data, not whether stops or vehicles are physically usable.
Fare information: Fare information is published using GTFS Fares v1.
Realtime information: Realtime-feed availability and live-arrival coverage are not known from this scorecard.

Important: This does not rate service reliability. Riders should confirm current service alerts, fares, and accessibility accommodations with the transit operator before traveling.

Send your vendor a fix request

You may not control the GTFS export yourself. Copy this and send it to whoever runs your scheduling software export. It names each fix with the validator notice and a guide link.

Hi,

Our GTFS feed (Alameda-Contra Costa Transit District (AC Transit)) scored B (85.0 out of 100) on the GTFS Scorecard. Could you review these in our export settings:

1. Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops.
   What: 4692 of 4692 stops don't say whether a wheelchair user can board there.
   Finding code: scorecard_wheelchair_boarding_unknown
   Guide: https://gtfsscorecard.org/fix/scorecard_wheelchair_boarding_unknown/

2. Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip.
   What: 13695 of 13695 trips don't say whether the vehicle is wheelchair accessible.
   Finding code: scorecard_wheelchair_accessible_unknown
   Guide: https://gtfsscorecard.org/fix/scorecard_wheelchair_accessible_unknown/

3. Use mixed case for stop names and headsigns (e.g. 'Main St & 2nd Ave', not 'MAIN ST & 2ND AVE').
   What: Some rider-facing names are in ALL CAPS or all lowercase.
   Finding code: mixed_case_recommended_field
   Guide: https://gtfsscorecard.org/fix/mixed_case_recommended_field/

Full scorecard: https://gtfsscorecard.org/agency/ac-transit/

Score by category

Correctness94.2 / 100

The MobilityData validator flagged 3 kinds of issue across 152 instances (0 error, 1 warning, 151 informational).

Freshness100.0 / 100

Service data covers the next 183 days.

Rider experience60.0 / 100

0% of stops state wheelchair accessibility (0% marked accessible, 0% marked not accessible). This measures what the feed publishes, not whether a stop is physically usable. Fare data is published.

Accessibility0 / 100

0% of stops state accessibility (0% marked accessible). Reflects what the feed states, not verified physical usability.

FaresLegacy fares

Fares are applied to trips.

Realtime qualityNot yet measured

This agency publishes realtime through 511 and its own developer API; neither is configured here yet. Nothing here counts against the grade.

Routes and stops

Each route is drawn once, using the longest shape its trips follow; stops are the dots.

This feed has 4692 stops.

The route and stop data is ready below. Load the map only when you want the geographic view. It uses additional data.

Basemap: OpenFreeMap, © OpenStreetMap contributors. Routes and stops: this agency's GTFS feed.

12 (teal)
14 (teal)
18 (red)
19 (teal)
1T (purple)
200 (teal)
210 (teal)
211 (teal)
216 (teal)
22 (teal)
231 (teal)
239 (teal)
251 (teal)
27 (teal)
28 (teal)
281 (teal)
30 (teal)
31 (teal)
34 (teal)
35 (teal)
36 (teal)
40 (red)
41 (teal)
45 (teal)
46L (teal)
51A (red)
51B (red)
52 (red)
54 (teal)
56 (teal)
57 (red)
6 (red)
60 (teal)
604 (black)
605 (black)
606 (black)
607 (black)
617 (black)
62 (teal)
620 (gray)
621 (black)
623 (black)
624 (black)
625 (black)
627 (gray)
629 (gray)
631 (black)
633 (black)
638 (black)
639 (black)
641 (black)
642 (black)
646 (black)
648 (black)
649 (black)
65 (teal)
650 (black)
651 (black)
652 (black)
653 (black)
654 (black)
655 (black)
657 (black)
658 (black)
660 (black)
662 (black)
663 (black)
667 (black)
669 (black)
67 (teal)
675 (black)
677 (black)
678 (black)
680 (black)
681 (black)
682 (black)
683 (black)
684 (black)
687 (black)
688 (black)
689 (black)
696 (black)
7 (teal)
70 (teal)
701 (blue)
702 (blue)
703 (blue)
71 (teal)
72 (teal)
72L (teal)
72M (teal)
73 (teal)
74 (teal)
76 (teal)
800 (orange)
801 (orange)
802 (orange)
805 (orange)
840 (orange)
851 (orange)
86 (teal)
88 (teal)
9 (red)
90 (teal)
93 (teal)
95 (teal)
96 (teal)
97 (teal)
98 (teal)
E (orange)
F (teal)
FS (orange)
G (orange)
J (orange)
L (orange)
NL (teal)
NX (orange)
NX3 (orange)
O (teal)
P (orange)
U (orange)
V (orange)
W (orange)

Routes in Alameda-Contra Costa Transit District (AC Transit)'s feed
Route	Type	Line color
12 MLK Jr. - Temescal - Grand	Bus	teal
14 14th St - San Antonio - High St	Bus	teal
18 Solano - Shattuck - Park Blvd.	Bus	red
19 Alameda Pt-Buena Vista-Fruitvale	Bus	teal
1T International - E. 14th	Bus	purple
200 Decoto - Newark Blvd. - Mowry	Bus	teal
210 Fremont Blvd. - Mission San Jose	Bus	teal
211 Fremont Blvd-Walnut Ave-Mission	Bus	teal
216 Niles - Stevenson - NewPark	Bus	teal
22 Alcatraz - Peralta - Lakeshore	Bus	teal
231 Fremont Blvd-Warm Springs-Milpa.	Bus	teal
239 Pacific Cm.-Grimmer-Warm Springs	Bus	teal
251 Paseo Padre - Thornton - Cherry	Bus	teal
27 EMY Amtrak-Ashby-El Cerrito Plz.	Bus	teal
28 Alvarado - Castro Valley - B St.	Bus	teal
281 Decoto - Paseo Padre-Cedar Blvd	Bus	teal
30 Dimond - Fruitvale - South Shore	Bus	teal
31 Skyline Blvd-Fruitvale-Bay Farm	Bus	teal
34 Estudillo - Davis - Meekland	Bus	teal
35 Estudillo - Davis - Lewelling	Bus	teal
36 Claremont - Dwight - Adeline	Bus	teal
40 Foothill - Bancroft - Bay Fair	Bus	red
41 Whitman - Huntwood - Union Landg	Bus	teal
45 Seminary - Sobrante Park	Bus	teal
46L 82nd Ave. - Grass Valley Limited	Bus	teal
51A Broadway - Santa Clara	Bus	red
51B University - College - Rockridge	Bus	red
52 UC Village - Cedar - UC Campus	Bus	red
54 35th Ave. - Merritt College	Bus	teal
56 Santa Clara - Weekes - Huntwood	Bus	teal
57 40th St. - MacArthur	Bus	red
6 Berkeley - Telegraph - Oakland	Bus	red
60 CSUEB - Southland - Tennyson	Bus	teal
604 Head Royce - OHDS - Berkeley	Bus	black
605 Head Royce - Montclair - College	Bus	black
606 Head Royce - Piedmont	Bus	black
607 Richmond High - Point Richmond	Bus	black
617 Skyline High - Seminary	Bus	black
62 7th St. - San Antonio - 23rd Av.	Bus	teal
620 Newark Middle - Cedar	Bus	gray
621 American High - Thornton Middle	Bus	black
623 Irvington High - Horner Middle	Bus	black
624 Mission San Jose - Hopkins Mid	Bus	black
625 Washington - Centerville Middle	Bus	black
627 Newark Memorial-Cedar-Newark Bl.	Bus	gray
629 Newark Memorial - Cherry - Haley	Bus	gray
631 Encinal - Alameda - Bay Farm	Bus	black
633 Harrison - Broadway - Park Blvd.	Bus	black
638 Skyline High - 73rd Ave.	Bus	black
639 Skyline High - Fruitvale Ave.	Bus	black
641 Hopkins Middle - Mission Blvd	Bus	black
642 Montera - Montclair - Colton	Bus	black
646 Montera - Skyline - 82nd Ave.	Bus	black
648 Skyline - High St.	Bus	black
649 Montera - Skyline - Grass Valley	Bus	black
65 Grizzly Peak - Euclid	Bus	teal
650 Montera - Oakmore - Seminary	Bus	black
651 Oakland Tech - Downtown Oakland	Bus	black
652 Skyline High - Elmhurst	Bus	black
653 Montera - MacArthur	Bus	black
654 Skyline High - 35th Ave.	Bus	black
655 Montera - 35th Ave.	Bus	black
657 Oak High - Oak Tech - MacArthur	Bus	black
658 Skyline - Bret Harte - MacArthur	Bus	black
660 Montera - Broadway Terrace	Bus	black
662 Skyline High - Broadway Terrace	Bus	black
663 Encinal - South Shore - High St.	Bus	black
667 Korematsu - E.C. - No. Richmond	Bus	black
669 Soskin Middle - San Pablo Dam	Bus	black
67 Spruce - Oxford	Bus	teal
675 Korematsu - El Cerrito - Carlson	Bus	black
677 Montera - Broadway Terrace	Bus	black
678 De Anza - Soskin - Fairmede	Bus	black
680 Bishop O'Dowd High - MacArthur	Bus	black
681 DeJean - Cutting - Macdonald	Bus	black
682 Bishop O'Dowd High - Montclair	Bus	black
683 Montclair - Bishop O'Dowd High	Bus	black
684 El Cerrito - Arlington - Garvin	Bus	black
687 Lincoln Middle - Bay Farm	Bus	black
688 St. Mary's College - Montclair	Bus	black
689 De Anza - Soskin - CC College	Bus	black
696 Oakland Tech - Montclair	Bus	black
7 Arlington - Shattuck - Stanford	Bus	teal
70 Rheem - San Pablo Dam - Appian	Bus	teal
701 Pittsburg/BP Transbay Early Bird	Bus	blue
702 Pleas Hill Transbay Early Bird	Bus	blue
703 Dubl/Plsntn Transbay Early Bird	Bus	blue
71 Parchester - Rumrill - Carlson	Bus	teal
72 CCC - San Pablo	Bus	teal
72L San Pablo Limited	Bus	teal
72M Macdonald - San Pablo	Bus	teal
73 73rd Ave. - Coliseum - Airport	Bus	teal
74 San Pablo Dam - 23rd St.	Bus	teal
76 Cutting - Market - Moyers	Bus	teal
800 Rich - Oak Transbay All Nighter	Bus	orange
801 E 14th - Mission All Nighter	Bus	orange
802 San Pablo All Nighter	Bus	orange
805 MacArthur - Airport All Nighter	Bus	orange
840 Foothill - Eastmont All Nighter	Bus	orange
851 Santa Clara-Broadway All Nighter	Bus	orange
86 Winton - Industrial - Tennyson	Bus	teal
88 Sacramento - Market- Oakland Ave	Bus	teal
9 E. 14th St. - Mission	Bus	red
90 85th Ave. - Elmhurst - 90th Ave.	Bus	teal
93 Ashland - San Lorenzo - A St.	Bus	teal
95 D St. - Maud - Fairview	Bus	teal
96 Alameda Pt. - 14th Ave. - Dimond	Bus	teal
97 Hesperian - Alvarado - Decoto	Bus	teal
98 Eastmont - 98th Ave. - Edgewater	Bus	teal
E Tunnel Rd. - Claremont Transbay	Bus	orange
F Adeline - Market Transbay	Bus	teal
FS Shattuck - University Transbay	Bus	orange
G Colusa - Solano Transbay	Bus	orange
J Sacramento - Christie Transbay	Bus	orange
L San Pablo - Pierce Transbay	Bus	orange
NL MacArthur Transbay Limited	Bus	teal
NX Grand Lake - Laurel Transbay	Bus	orange
NX3 MacArthur - Eastmont Transbay	Bus	orange
O Santa Clara - Encinal Transbay	Bus	teal
P Piedmont - Oakland Ave. Transbay	Bus	orange
U Stanford - Dumbarton - Fremont	Bus	orange
V Montclair - Park Blvd. Transbay	Bus	orange
W Bay Farm - South Shore Transbay	Bus	orange

List every stop

Aughinbaugh Way & Robert Davey Jr Dr
2217 Otis Dr
Auto Mall Pkwy & Osgood Rd
Auto Mall Pkwy & Osgood Rd
Auto Mall Pkwy & Technology Dr
Auto Mall Pkwy & Technology Dr
Blacow Rd & Greenpark Dr (Irvington High School)
Blacow Rd & Greenpark Dr (Irvington High School)
Bryant St & Cedar St
Bryant St & Pine St
Chapel Way & Carol Av (Hirsch School)
Chapel Way & Laurel St (Horner Jr High School)
Civic Center Dr & BART Way
Civic Center Dr & Mowry Av (Washington Hospital)
Civic Center Dr & Stevenson Blvd
Civic Center Dr & Walnut Av
Civic Center Dr & Walnut Av
Otis Dr & Broadway
Decoto Rd & Cabrillo Dr
Decoto Rd & Cabrillo Dr
Decoto Rd & Fremont Blvd
Decoto Rd & Ozark River Way
Decoto Rd & Ozark River Way
Driscoll Rd & Amapola Dr (Hopkins Jr High School)
Driscoll Rd & Durillo Dr
Driscoll Rd & Hopkins Jr High School
Otis Dr & Broadway
Durham Rd & Paseo Padre Pkwy
Fremont BART
Fremont BART
Fremont BART
Fremont BART
38932 Fremont Blvd (Near Mowry Av)
Fremont Blvd & Adams Av
Fremont Blvd & Adams Av
Fremont Blvd & Alder Av (American Sr High School)
Fremont Blvd & Alder Av (American Sr High School)
Fremont Blvd & Beacon Av
Fremont Blvd & Beacon Av
Fremont Blvd & Bidwell Dr
Fremont Blvd & Bonde Way
Fremont Blvd & Carol Av
Fremont Blvd & Centerville Jr High School
Fremont Blvd & Central Av
Fremont Blvd & Chapel Way
Fremont Blvd & Country Dr
Fremont Blvd & Crestwood St
Fremont Blvd & Crestwood St
Fremont Blvd & Darwin Dr
Fremont Blvd & Decoto Rd
Otis Dr & High St
Fremont Blvd & Decoto Rd
Fremont Blvd & Delaware Dr
Fremont Blvd & Delaware Dr
Fremont Blvd & Doane St
Fremont Blvd & Doane St
Fremont Blvd & Eggers Dr
Fremont Blvd & Eggers Dr
Fremont Blvd & Enea Ct
Fremont Blvd & Enea Ct
Fremont Blvd & Ferry Ln
Fremont Blvd & Ferry Ln
Fremont Blvd & Gibraltar Dr
Fremont Blvd & Grimmer Blvd
Fremont Blvd & London Com
Fremont Blvd & Michael Av
Fremont Blvd & Mission View Dr
Fremont Blvd & Montrose Av
Fremont Blvd & Mowry Av
Fremont Blvd & Mowry Av
Fremont Blvd & Nicolet Av
Fremont Blvd & Nicolet Av
Fremont Blvd & Norris Rd
Fremont Blvd & Village Ter
Fremont Blvd & Papazian Way
Otis Dr & Mound St
Fremont Blvd & Paseo Padre Pkwy
Fremont Blvd & Peralta Ct
Fremont Blvd & Stevenson Blvd
Fremont Blvd & Stevenson Blvd
Fremont Blvd & Sundale Dr
Fremont Blvd & Sundale Dr
Aughinbaugh Way & Robert Davey Jr Dr
Otis Dr & Park St
Fremont Blvd & Tamayo St
Fremont Blvd & Tamayo St
Fremont Blvd & Thornton Av
Fremont Blvd & Washington Blvd
Fremont Blvd & Washington Blvd
Grimmer Blvd & Auto Mall Pkwy
Otis Dr & Park St
Grimmer Blvd & Blacow Rd
Grimmer Blvd & Blacow Rd
Grimmer Blvd & Carol Av
Grimmer Blvd & Davis St
Grimmer Blvd & Davis St
Grimmer Blvd & Doane St
Grimmer Blvd & Fremont Blvd
Grimmer Blvd & Irvington Av
Otis Dr & S Shore Ctr
Grimmer Blvd & Irvington Av
Grimmer Blvd & Paseo Padre Pkwy
Grimmer Blvd & Seneca Park Av
Grimmer Blvd & Valpey Park Av
Grimmer Blvd & Valpey Park Av
Grimmer Blvd & Yellowstone Park Dr
Otis Dr & Westline Dr
48641 Milmont Dr
Milmont Dr & Kato Rd
Mission Blvd & Antelope Dr (S Grimmer Blvd)
Mission Blvd & Anza St
Mission Blvd & Anza St
Mission Blvd & Calle Amigo Dr
Mission Blvd & Calle Amigo Dr
Mission Blvd & Callery Ct
Mission Blvd & Callery Ct
Mission Blvd & Cedar St
Mission Blvd & Cougar Dr
Mission Blvd & Dalgo Rd
Mission Blvd & Castro Ln
Mission Blvd & Driscoll Rd
Mission Blvd & Esparito Av
Mission Blvd & Hunter Ln
Mission Blvd & I-680 Fwy
Mission Blvd & I-680 Fwy
Mission Blvd & Las Palmas Av
Mission Blvd & Las Palmas Av
Mission Blvd & Mackintosh St
Mission Blvd & Mill Creek Rd
Mission Blvd & Mohave Dr
Mission Blvd & Nursery Av
Mission Blvd & Nursery Av
Mission Blvd & Ondina Dr
Mission Blvd & Palm Av (Mission San Jose High)
Mission Blvd & Palm Av (Mission San Jose High)
Otis Dr & Willow St
Mission Blvd & Paseo Padre Pkwy
Mission Blvd & Pine St
Mission Blvd & Starr St
Mission Blvd & Stevenson Blvd
Mission Blvd & Stevenson Blvd
Mission Blvd & Via San Dimas
Mission Blvd & Via San Dimas
Mission Blvd & Washington Blvd
Mission Blvd & Washington Blvd
Pacific Av & 4th St
Mowry Av & Argonaut Way
Mowry Av & Glenview Dr
Mowry Av & Logan Dr
2557 Mowry Av
300 Mowry Av
Mowry Av & Alpenrose Ct
Mowry Av & Argonaut Way
Mowry Av & Blacow Rd
Mowry Av & Bonner Av
Mowry Av & Bonner Av
Mowry Av & Cherry Ln
Mowry Av & Cherry Ln
Mowry Av & Farwell Dr
Mowry Av & Farwell Dr
Mowry Av & Lexington St
Mowry Av & Fremont Blvd
Mowry Av & Fremont Blvd
Mowry Av & Guardino Dr
Mowry Av & Guardino Dr
Mowry Av & Hastings St
Park St & Blanding Av
Mowry Av & Lexington St
Mowry Av & Mission Blvd
Mowry Av & Parkside Dr (Washington Hosp.Emer.Ent.)
Mowry Av & Parkside Dr
Mowry Av & Paseo Padre Pkwy
Mowry Av & Paseo Padre Pkwy
Mowry Av & State St
Ardenwood Blvd & Fwy 84
37395 Niles Blvd
Niles Blvd & E St
Aughinbaugh Way & The Lagoon
Niles Blvd & E St
Niles Blvd & El Portal Av
Niles Blvd & El Portal Av
Niles Blvd & F St
Niles Blvd & H St
Niles Blvd & Hillview Dr
Niles Blvd & Hillview Dr
Niles Blvd & J St
Niles Blvd & J St
Niles Blvd & Nursery Av
Park St & Clement Av
Niles Blvd & Nursery Av
Niles Blvd & Torrano Com (East Jctn)
Niles Blvd & Vallejo St
Niles Blvd & Vallejo St
Niles Blvd & F St
Ohlone College Key C
Ohlone College-Key C
Ohlone College-Key D
Osgood Rd & Auto Mall Pkwy
Osgood Rd & Auto Mall Pkwy
Osgood Rd & Prune Av
Park St & Otis Dr
Page Av & Kato Rd
Page Av & Milmont St
Paseo Padre Pkwy & Blackstone Way
Paseo Padre Pkwy & Blackstone Way
Paseo Padre Pkwy & Bowling Green Common
Paseo Padre Pkwy & Chadbourne Dr
Paseo Padre Pkwy & Chaucer Dr
Paseo Padre Pkwy & Country Dr
Park St & Otis Dr
Paseo Padre Pkwy & Country Dr
Paseo Padre Pkwy & Cree Rd
Paseo Padre Pkwy & Darwin Dr
Paseo Padre Pkwy & Darwin Dr
Paseo Padre Pkwy & Deep Creek Rd
Paseo Padre Pkwy & Deep Creek Rd
Paseo Padre Pkwy & Driscoll Rd
Paseo Padre Pkwy & Eggers Dr
Paseo Padre Pkwy & Ethel St (Near Eggers Dr)
Park St & San Jose Av
Paseo Padre Pkwy & Fremont Blvd
Paseo Padre Pkwy & Fremont Blvd
Paseo Padre Pkwy & Indian Hill Pl
Paseo Padre Pkwy & Kokoma Rd
Paseo Padre Pkwy & Langhorn Dr
Paseo Padre Pkwy & Milton St
Paseo Padre Pkwy & Mission Blvd
Paseo Padre Pkwy & Mission View Dr
Paseo Padre Pkwy & Mission View Dr
Park St & San Jose Av
Paseo Padre Pkwy & Mowry Av
Paseo Padre Pkwy & Ocaso Camino
Paseo Padre Pkwy & Olive Av
Paseo Padre Pkwy & Onondaga Way
Paseo Padre Pkwy & Parkmeadow Dr
Paseo Padre Pkwy & Parkmeadow Dr
Paseo Padre Pkwy & Peralta Blvd
Paseo Padre Pkwy & Peralta Blvd
Robert Davey Jr Dr & Channing Way
Paseo Padre Pkwy & Pine St
Paseo Padre Pkwy & Quema Dr
Paseo Padre Pkwy & Rockett Dr
Paseo Padre Pkwy & Sailway Dr
Paseo Padre Pkwy & Sailway Dr
Paseo Padre Pkwy & Senior Center
Paseo Padre Pkwy & Sequoia Rd
Paseo Padre Pkwy & Sequoia Rd
Robert Davey Jr Dr & Channing Way
Paseo Padre Pkwy & Sioux Dr
Paseo Padre Pkwy & Sioux Dr
and 4442 more (see the full list on the map or in the GeoJSON)

Over time

This is the first scorecard for this agency. A trend and a "what changed" summary appear here once it has been checked more than once.

Everything we checked

5 findings, ordered by severity.

Show every finding

Warning13695 instances
13695 of 13695 trips don't say whether the vehicle is wheelchair accessible.
Even with accessible stops, riders need to know the bus itself can take them.
Fix: Set wheelchair_accessible on every trip. If every vehicle is accessible, this may be one default; otherwise use the value for each trip. (A default or per-trip field in your export.)
Finding code: scorecard_wheelchair_accessible_unknown · Read the fix guide for scorecard_wheelchair_accessible_unknown · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)
Warning4692 instances
4692 of 4692 stops don't say whether a wheelchair user can board there.
Riders who use wheelchairs can't plan a trip when accessibility is marked 'unknown'; apps show no information at all.
Fix: Set wheelchair_boarding to 1 (accessible) or 2 (not accessible) for every stop. A field survey can start with the busiest stops. (A column in stops.txt; your scheduling software likely has it.)
Finding code: scorecard_wheelchair_boarding_unknown · Read the fix guide for scorecard_wheelchair_boarding_unknown · See GTFS Schedule reference (opens the GTFS Schedule reference on an external site)
Warning1 instance
Some rider-facing names are in ALL CAPS or all lowercase.
ALL-CAPS stop and headsign names are harder to read in apps and are read awkwardly by screen readers.
Fix: Use mixed case for stop names and headsigns (e.g. 'Main St & 2nd Ave', not 'MAIN ST & 2ND AVE'). (Often a bulk fix in your scheduling software.)
Finding code: mixed_case_recommended_field · Read the fix guide for mixed_case_recommended_field · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
Info117 instances
The feed has a stretch of two weeks or more with no service running.
A long gap can mean dates were left out of the calendar. Apps then show no trips on those days.
Fix: Check whether the gap is real, like a seasonal break; if not, add the missing dates to the calendar. (A review of your calendar dates.)
Finding code: big_gap_in_service · Read the fix guide for big_gap_in_service · See MobilityData GTFS Validator rules (opens the validator rules on an external site)
Info34 instances
Some trip headsigns name a stop along the way, not the final destination.
The sign should tell riders where the bus ends up, so a midpoint name can send them the wrong way.
Fix: Set trip_headsign to the trip's last stop or its overall destination. (Usually a bulk edit in your scheduling software.)
Finding code: trip_headsign_matches_intermediate_stop · See MobilityData GTFS Validator rules (opens the validator rules on an external site)

NTD GTFS readiness Ready

Published at a public URL, valid, current, and identified with agency_id: the four feed checks for RY2026 all hold here. Only your own D-10 and P-50 filings make that official; this is a heads-up, not a determination.

Published Ready: Published at a public URL.
Valid Ready: Passes validation with no errors.
Current Ready: Service data covers the next 183 days.
agency_id provided Ready: agency.txt provides agency_id. For RY2026, keep one stable value for each NTD reporter represented in the feed and crosswalk each value on the P-50 form.

agency_id equals your NTD ID (optional) Different (allowed): Your feed's agency_id is 1; your National Transit Database ID is 90014. A feed that serves several agencies (a shared regional feed) can legitimately carry more than one agency_id. The values do not need to equal the five-digit NTD ID, so this difference is allowed and carries no score. Confirm that P-50 crosswalks agency_id 1 to NTD ID 90014, and keep the feed value stable. Do not change it solely to make the two values equal.

shapes.txt covers your trips Ready: All 13695 trips have a shape in shapes.txt.

In plain words: if you report to the federal transit database, you have to publish a working, up-to-date feed, provide a stable agency_id for each represented reporter, and confirm the feed and P-50 crosswalk each year. This box is a heads-up; your filings are the official check.

A readiness signal mapping this feed to the FTA National Transit Database GTFS requirement (Report Year 2023 onward: a public, valid, current feed, certified annually on the D-10). For RY2026, each represented reporter needs a stable agency_id, unique within the feed and crosswalked to its five-digit NTD ID on P-50; the values do not need to be equal. FTA also requires shapes.txt in the published GTFS: Full Reporters from Report Year 2025, and Reduced, Rural, and Tribal Reporters from Report Year 2026. Not an official determination; your certification is the official check.

Conformance mark Not yet

One requirement remains for this feed to earn the conformance mark. States wheelchair access on 0% of stops and 0% of trips; the mark needs 90% of each.

Valid Met: Passes validation with no errors.
Current Met: Service data covers the next 183 days.
Accessible Not yet: States wheelchair access on 0% of stops and 0% of trips; the mark needs 90% of each.

In plain words: earn this mark when your feed passes validation, has not expired, and says whether nearly every stop and trip is wheelchair accessible.

A pass credential for a feed that is valid, current, and states wheelchair access on nearly every stop and trip. Accessibility here measures what the feed publishes, not whether a stop is physically usable. How the conformance mark works.

Clears the Google and Apple Maps four-week coverage bar. This feed has 183 days of service ahead, clearing the four-week (28-day) window Maps asks for. No validator errors either, so riders keep seeing this agency in their trip planners; warnings lower the grade here but do not remove a feed from Maps.

How this agency maps to the standards

The scorecard is a data-quality lens, not a compliance determination. Its universal references describe good GTFS and useful rider information. Useful references here are GTFS Schedule Best Practices, GTFS-Realtime Best Practices, MobilityData grading scheme, Google Transit publication guidance, FTA National Transit Database GTFS requirement. Read the full standards crosswalk.

In California, the published guideline is California Transit Data Guidelines. Caltrans' published quality guidelines and compliance checklist; this rubric is anchored to them.

California Minimum GTFS Guidelines checklist (5 of 6 measured items met)

The state's own Data Process Checklist, matched item by item to what this scorecard already measures. An item marked "not measured here" is real ground the checklist covers that this tool does not check; see the official checklist for the full picture.

Meets Publish GTFS Schedule at a stable, automatically-fetchable URL
The published feed URL downloaded at the last check.
Not measured here Implement required fields: Fares v2, text-to-speech stop names, shapes.txt, wheelchair_boarding, and Pathways where applicable
This scorecard measures wheelchair_boarding, shapes.txt coverage, fare data, and station pathways separately, below; it does not check the Fares v2 format specifically or text-to-speech stop names.
Not measured here Achieve a passing score in every category of the MobilityData GTFS Grading Scheme v1
This scorecard automates a proxy for the Grading Scheme's rider-facing fields (see the standards crosswalk) rather than running the scheme itself, which grades by comparison to the real world by hand.
Not measured here Publish changes to the base schedule at least one week ahead of every service change
This scorecard does not track a feed's publish history, so advance notice cannot be checked.
Meets Produce no critical errors in the MobilityData GTFS Validator
Passes validation with no errors.
Not measured here Publish Trip Updates, Vehicle Positions, and Alerts feeds
This scorecard checks realtime reachability and freshness overall; it does not check for all three feed types individually.
Not measured here Update Trip Updates and Vehicle Positions at least every 20 seconds
This scorecard samples realtime freshness; it does not check this specific 20-second cadence.
Not measured here Publish information for at least 99% of vehicles in service
This scorecard measures the share of scheduled trips represented in TripUpdates, a related but different figure than vehicle coverage.
Not measured here Keep 100% of trip_ids consistent between Schedule and Realtime
This scorecard does not currently check trip_id consistency between the Schedule and Realtime feeds.
Not measured here Produce no critical errors in the Center for Urban Transportation Research realtime validator
This scorecard does not run the CUTR realtime validator.
Not measured here Publish accessible feed links on the agency or regional partner website
This scorecard does not check the agency's own website.
Not measured here Register GTFS and GTFS-Realtime feeds with transit.land and the Mobility Database
This scorecard does not currently check aggregator registration for this section.
Meets Designate a technical contact in feed_info.txt's feed_contact_email
feed_info.txt states a technical contact.
Gap wheelchair_boarding stated on stops and trips
States wheelchair access on 0% of stops and 0% of trips.
Meets shapes.txt with a shape for every trip
All 13695 trips have a shape in shapes.txt.
Meets Fare data published, or the service marked fare-free
Fare data is published.

Correctness 94 / 100: GTFS Schedule best practices, checked by the MobilityData validator. MobilityData grading covers stop locations, route names, and colors. Google Transit requires a feed to pass validation for publication. FTA NTD readiness also checks that the published feed is valid.
Freshness 100 / 100: GTFS Schedule best practices call for a dataset that stays current. An expired calendar can remove service from Google Transit and other rider trip planners. FTA NTD readiness also checks that the published feed is current.
Rider experience 60 / 100: GTFS Best Practices for rider-facing fields. MobilityData grading covers stop names and headsigns.
Realtime quality Not yet published: GTFS-Realtime best practices: a stable URL, high uptime, and frequent updates.

Part of the California portfolio: the same scorecards for every feed we track in that group, on one free page.

For programs that support several agencies

This scorecard and the board one-pager for Alameda-Contra Costa Transit District (AC Transit) are free, and they stay free. If you support several agencies, as a state program, a technical-assistance center, a feed vendor, or a consultancy, you can buy the program report bundle. It puts this agency's board report in one archive with the reports for the other agencies you support, and each cover carries your program's name, logo, and accent color.

The report for Alameda-Contra Costa Transit District (AC Transit) uses the same numbers as this page: grade B (85.0 out of 100) as of the check on 2026-10-02, its category scores, and its top fixes.

One bundle, up to 25 agencies: $149, paid once, delivered within 2 business days or refunded. Other plans, including a monthly refresh, are on the bundle page.

See the program report bundle

See a sample bundle report: a real agency's current grade, with placeholder branding.

A purchase buys no influence over grades, methodology, or which agencies are listed. The grade on this page comes from the check on 2026-10-02, scored with rubric v1.4 and MobilityData gtfs-validator 8.0.1. Based on the feed source on file; publisher ownership is not verified. Read how the grade is calculated.

Show your grade

Put a badge on your agency site or feed README. It updates after each completed scoring check and links back to this scorecard.

[![Alameda-Contra Costa Transit District (AC Transit) GTFS data quality grade: B](https://gtfsscorecard.org/data/artifacts/ac-transit/badge.svg)](https://gtfsscorecard.org/agency/ac-transit/)

Prefer a shields.io style? Point a dynamic endpoint badge at the published badge.json.

Cite this record

This page updates on every check. The record below does not: it is the dated file this grade came from, published at https://gtfsscorecard.org/data/artifacts/ac-transit/2026-10-02.json and never overwritten, pinning the grade, category scores, rubric version, validator version, reader archive profile, and the scored feed's sha256 as they stood on 2026-10-02. Use it in a board packet, a regulatory filing, or a research citation instead of linking the live page, whose content will differ on your next visit.

GTFS Scorecard. (2026). Alameda-Contra Costa Transit District (AC Transit) GTFS feed-quality record, dated 2026-10-02 (grade B (85.0/100), rubric v1.4, gtfs-validator 8.0.1, reader archive profile raw-v1, feed sha256 073404069aa1…). https://gtfsscorecard.org/data/artifacts/ac-transit/2026-10-02.json

@misc{gtfsscorecard-ac-transit-2026-10-02,
  title        = {Alameda-Contra Costa Transit District (AC Transit) GTFS feed-quality record},
  author       = {GTFS Scorecard},
  year         = {2026},
  howpublished = {\url{https://gtfsscorecard.org/data/artifacts/ac-transit/2026-10-02.json}},
  note         = {Checked 2026-10-02; rubric v1.4; gtfs-validator 8.0.1; reader archive profile raw-v1; grade B (85.0/100)}
}

Citing the tool itself rather than one agency's record? Use the repo's CITATION.cff.