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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

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

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
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.

  1. 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.

  2. 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.

  3. 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.

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.

1 accessibility depth signal

  • 4480 stop name(s) use abbreviations or symbols a screen reader may mispronounce, with no spoken form set ("8th St & Portola Av", "8th St & Portola Av", "Ralph Appezzato Memorial Pkwy + 3rd St", and more).

    Consider: Add tts_stop_name with the spoken form, e.g. 'Main Street and Second Avenue', for the affected stops.

Opportunities to strengthen the data, not deductions from the sub-score above. States what the second accessibility lens can check from the feed, 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.

Skip to route and stop data

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)
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  • 604 (black)
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  • 620 (gray)
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  • 669 (black)
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  • 680 (black)
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  • 696 (black)
  • 7 (teal)
  • 70 (teal)
  • 701 (blue)
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  • 71 (teal)
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  • 800 (orange)
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  • 86 (teal)
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  • 9 (red)
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  • 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
RouteTypeLine color
12 MLK Jr. - Temescal - GrandBusteal
14 14th St - San Antonio - High StBusteal
18 Solano - Shattuck - Park Blvd.Busred
19 Alameda Pt-Buena Vista-FruitvaleBusteal
1T International - E. 14thBuspurple
200 Decoto - Newark Blvd. - MowryBusteal
210 Fremont Blvd. - Mission San JoseBusteal
211 Fremont Blvd-Walnut Ave-MissionBusteal
216 Niles - Stevenson - NewParkBusteal
22 Alcatraz - Peralta - LakeshoreBusteal
231 Fremont Blvd-Warm Springs-Milpa.Busteal
239 Pacific Cm.-Grimmer-Warm SpringsBusteal
251 Paseo Padre - Thornton - CherryBusteal
27 EMY Amtrak-Ashby-El Cerrito Plz.Busteal
28 Alvarado - Castro Valley - B St.Busteal
281 Decoto - Paseo Padre-Cedar BlvdBusteal
30 Dimond - Fruitvale - South ShoreBusteal
31 Skyline Blvd-Fruitvale-Bay FarmBusteal
34 Estudillo - Davis - MeeklandBusteal
35 Estudillo - Davis - LewellingBusteal
36 Claremont - Dwight - AdelineBusteal
40 Foothill - Bancroft - Bay FairBusred
41 Whitman - Huntwood - Union LandgBusteal
45 Seminary - Sobrante ParkBusteal
46L 82nd Ave. - Grass Valley LimitedBusteal
51A Broadway - Santa ClaraBusred
51B University - College - RockridgeBusred
52 UC Village - Cedar - UC CampusBusred
54 35th Ave. - Merritt CollegeBusteal
56 Santa Clara - Weekes - HuntwoodBusteal
57 40th St. - MacArthurBusred
6 Berkeley - Telegraph - OaklandBusred
60 CSUEB - Southland - TennysonBusteal
604 Head Royce - OHDS - BerkeleyBusblack
605 Head Royce - Montclair - CollegeBusblack
606 Head Royce - PiedmontBusblack
607 Richmond High - Point RichmondBusblack
617 Skyline High - SeminaryBusblack
62 7th St. - San Antonio - 23rd Av.Busteal
620 Newark Middle - CedarBusgray
621 American High - Thornton MiddleBusblack
623 Irvington High - Horner MiddleBusblack
624 Mission San Jose - Hopkins MidBusblack
625 Washington - Centerville MiddleBusblack
627 Newark Memorial-Cedar-Newark Bl.Busgray
629 Newark Memorial - Cherry - HaleyBusgray
631 Encinal - Alameda - Bay FarmBusblack
633 Harrison - Broadway - Park Blvd.Busblack
638 Skyline High - 73rd Ave.Busblack
639 Skyline High - Fruitvale Ave.Busblack
641 Hopkins Middle - Mission BlvdBusblack
642 Montera - Montclair - ColtonBusblack
646 Montera - Skyline - 82nd Ave.Busblack
648 Skyline - High St.Busblack
649 Montera - Skyline - Grass ValleyBusblack
65 Grizzly Peak - EuclidBusteal
650 Montera - Oakmore - SeminaryBusblack
651 Oakland Tech - Downtown OaklandBusblack
652 Skyline High - ElmhurstBusblack
653 Montera - MacArthurBusblack
654 Skyline High - 35th Ave.Busblack
655 Montera - 35th Ave.Busblack
657 Oak High - Oak Tech - MacArthurBusblack
658 Skyline - Bret Harte - MacArthurBusblack
660 Montera - Broadway TerraceBusblack
662 Skyline High - Broadway TerraceBusblack
663 Encinal - South Shore - High St.Busblack
667 Korematsu - E.C. - No. RichmondBusblack
669 Soskin Middle - San Pablo DamBusblack
67 Spruce - OxfordBusteal
675 Korematsu - El Cerrito - CarlsonBusblack
677 Montera - Broadway TerraceBusblack
678 De Anza - Soskin - FairmedeBusblack
680 Bishop O'Dowd High - MacArthurBusblack
681 DeJean - Cutting - MacdonaldBusblack
682 Bishop O'Dowd High - MontclairBusblack
683 Montclair - Bishop O'Dowd HighBusblack
684 El Cerrito - Arlington - GarvinBusblack
687 Lincoln Middle - Bay FarmBusblack
688 St. Mary's College - MontclairBusblack
689 De Anza - Soskin - CC CollegeBusblack
696 Oakland Tech - MontclairBusblack
7 Arlington - Shattuck - StanfordBusteal
70 Rheem - San Pablo Dam - AppianBusteal
701 Pittsburg/BP Transbay Early BirdBusblue
702 Pleas Hill Transbay Early BirdBusblue
703 Dubl/Plsntn Transbay Early BirdBusblue
71 Parchester - Rumrill - CarlsonBusteal
72 CCC - San PabloBusteal
72L San Pablo LimitedBusteal
72M Macdonald - San PabloBusteal
73 73rd Ave. - Coliseum - AirportBusteal
74 San Pablo Dam - 23rd St.Busteal
76 Cutting - Market - MoyersBusteal
800 Rich - Oak Transbay All NighterBusorange
801 E 14th - Mission All NighterBusorange
802 San Pablo All NighterBusorange
805 MacArthur - Airport All NighterBusorange
840 Foothill - Eastmont All NighterBusorange
851 Santa Clara-Broadway All NighterBusorange
86 Winton - Industrial - TennysonBusteal
88 Sacramento - Market- Oakland AveBusteal
9 E. 14th St. - MissionBusred
90 85th Ave. - Elmhurst - 90th Ave.Busteal
93 Ashland - San Lorenzo - A St.Busteal
95 D St. - Maud - FairviewBusteal
96 Alameda Pt. - 14th Ave. - DimondBusteal
97 Hesperian - Alvarado - DecotoBusteal
98 Eastmont - 98th Ave. - EdgewaterBusteal
E Tunnel Rd. - Claremont TransbayBusorange
F Adeline - Market TransbayBusteal
FS Shattuck - University TransbayBusorange
G Colusa - Solano TransbayBusorange
J Sacramento - Christie TransbayBusorange
L San Pablo - Pierce TransbayBusorange
NL MacArthur Transbay LimitedBusteal
NX Grand Lake - Laurel TransbayBusorange
NX3 MacArthur - Eastmont TransbayBusorange
O Santa Clara - Encinal TransbayBusteal
P Piedmont - Oakland Ave. TransbayBusorange
U Stanford - Dumbarton - FremontBusorange
V Montclair - Park Blvd. TransbayBusorange
W Bay Farm - South Shore TransbayBusorange
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

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.

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