List of AC Transit routes

Many Transbay routes continue to follow the original Key System alignments to some degree.

(must be updated for 2020 changes)[citation needed] These routes serve various cities, towns, and attractions in Alameda and Contra Costa counties.

In early 2015, following several rounds of community meetings, AC Transit announced a proposal for a radical rerouting and redesignation of many lines throughout their service area due to extra funds made available by the passage of Measure BB in November 2014.

These services require passengers to book their trips online, using a smartphone app, or by telephone (up to three months in advance), and vans arrive within 30 minutes after the reservation is made.

[13] Customers boarding at a BART station do not need to reserve a trip and can just tell the operator their final destination.

[14] On February 11, 2019, the beginning of BART service on weekdays was changed from 4:00 am to 5:00 am for a three-year period to allow for overnight seismic retrofit work in the Transbay Tube.

Thirteen Early Bird Express routes, of which six are operated by AC Transit, were created to provide service between 3:50 am and 5:30 am.

AC Transit operates one route between the East Bay and Santa Clara County via the Dumbarton Bridge.

While these lines are open to all riders at regular fares, they do not operate during most school breaks and holidays.

These routes are usually timed to match the morning and afternoon bell schedules of all schools served.

All Nighter buses provide overnight bus service when BART and Caltrain are not operating.

All AC Transit All Nighter routes provide timed transfers at Broadway and 14th Street in downtown Oakland.