Corridor Studies
The Authority occasionally funds the development of Corridor Studies to evaluate the benefits and drawbacks of a variety of capital and operational improvements that could be implemented within a specific corridor to achieve the Authority's overall goals of reducing future congestion on highways and arterial roads, and expanding safe, convenient, and affordable alternatives to the single-occupant vehicle.
Examples of some of the more recent corridor studies are as follows:
I-680 Investment Options Study: the Authority has studied various options for congestion management along I-680, ranging from the extension of HOV lanes to the extension of rail service from Walnut Creek south to Dublin.
East Central Traffic Management Study: the Authority worked with cities in Central and East Contra Costa County to help find ways to make the morning commute a little easier. The study evaluates various strategies for keeping regional traffic on Route 4, and local traffic on the arterial streets. A primary strategy for traffic management that was explored in this study was the use of "single point metering," where through traffic is metered at an existing intersection to reduce downstream congestion and improve system operations.
Central, East, Southwest Arterial and Freeway Ramp Metering Study: as part of a discussion of ramp metering at the local level, the regional transportation committees for Central, East, and Southwest (TRANSPAC, TRANSPLAN, and SWAT) worked with, Caltrans and the Authority to perform a technical analysis of the impacts and benefits of ramp metering arterial and freeway ramp metering.