Altamont Commuter Express Service

In May 1997, the Alameda County Congestion Management Agency (ACCMA), the San Joaquin Regional Rail Commission (SJRRC), and the Santa Clara Valley Transportation Authority (VTA) entered into an agreement to create the Altamont Commuter Express (ACE) Joint Powers Authority which operates the ACE Service. ACE Service became operational on October 19, 1998. On June 30, 2003 the ACE JPA was dissolved and a Cooperative Services Agreement (CSA) was entered into between SJRRC, ACCMA and VTA. Through the CSA, the ACCMA provides financial support for the ACE Service. The CSA stipulates the SJRRC as the owner/operator for the ACE service, overseeing the day-to-day management, planning and support services necessary to operate the trains.

The ACE service operates Monday through Friday three roundtrip commuter trains between Stockton and San Jose. A fourth ACE train was initiated on August 28, 2006 in coordination with Caltrans Division of Rail and Caltrans District 10 to provide midday service between Stockton and San Jose as part of the Caltrans/Amtrak San Joaquins intercity service and as a mitigation measure for the construction of Interstate 205 in the Tracy (San Joaquin County) area.

The ACCMA funds the Alameda County share of the ACE service operations with Measure B funds. Measure B is a one-half cent sales tax approved by the voters of Alameda County in November, 2000. The use of the Measure B revenues is overseen by the Alameda County Transportation Improvement Authority. The ACE service will receive 2.12% of the net revenues of Measure B for ACE Service Operations.

Additional information about the Alameda County Transportation Improvement Authority, Measure B, and the ACE service are available at the following links.

Additional Altamont Commuter Express Information

Alameda County Transportation Improvement Authority