During the initial deployment of electronic toll collection on the Carquinez Bridge (1996-1997) there was an increased number of crashes and personal injuries.

March 1999
Carquinez Bridge, Vallejo,California,United States

Summary Information

A pilot Electronic Toll Collection (ETC) project was installed and tested by CalTrans on the Carquinez Bridge. This bridge was chosen as the location because capacity at the toll plaza was sufficient to handle peak demands with booths out of service during the ETC demonstration. Historically, traffic on the bridge increased at an average rate of 2 percent each year for several years (129 million vehicle crossings in FY 1992/93 to 140 million in FY 1996/97).

As part of the demonstration project, benefits of installing the ETC system were estimated. Estimates were provided for each fiscal year between 1995/96 and 2005/06.


Real world data from the report indicated that the total number of accidents increased between 1996 and 1997 from 27 to 30. Personal injures increased from 5 in 1996 to 13 in 1997.

Benefit Comments

No comments posted to date

Comment on this Benefit

To comment on this summary, fill in the information below and click on submit. An asterisk (*) indicates a required field. Your name and email address, if provided, will not be posted, but are to contact you, if needed to clarify your comments.


Assessing the Benefits and Costs of ITS Projects: Volume 2 An Application to Electronic Toll Collection

Author: Gillen, D., et al.

Published By: California PATH Program, University of California

Source Date: March 1999

Other Reference Number: Report No. UCB-ITS-PRR-99-10


Average User Rating

0 ( ratings)

Rate this Benefit

(click stars to rate)

Goal Areas



electronic toll collection, ETC, smart tags, EZ Pass, E-Z Pass, EZPass

Benefit ID: 2000-00020