ARB staff are working with researchers at the University of California at Irvine and Davis to identify the impacts on vehicle use and greenhouse gas emissions of key transportation and land use policies based on the scientific literature. This research is the first step in a long-term process to help strengthen the technical underpinnings of SB 375 and to identify important data gaps and research needs. The research results may be used to help inform development of and potential improvements to the models and tools used by MPOs and others for SB 375 implementation.

The results of the draft U.C. research are presented in two papers for each policy in the table below: a policy brief and a more detailed technical background document for practitioners.  U.C. researchers are continuing to assess additional policies.  Their results will be posted as they become available.

Transportation-Related Policies

Policy	Draft Research Results
Parking Pricing	Policy Brief  Background Technical Document
Road User Pricing	Policy Brief  Background Technical Document
Employer-Based Trip Reduction	Policy Brief  Background Technical Document
Pedestrian Strategies	Policy Brief Background Technical Document
Bicycle Strategies	Policy Brief Background Technical Document
Transit Service	Policy Brief Background Technical Document
Telecommuting	Policy Brief Background Technical Document
Voluntary Travel Behavior Change Programs	Policy Brief Background Technical Document
Traffic Incident Clearance Programs	Policy Brief Background Technical Document

Land Use-Related Policies

Policy	Draft Research Results
Residential Density	Policy Brief  Background Technical Document
Distance to Transit (Transit Access)	Policy Brief  Background Technical Document
Land Use Mix	Policy Brief  Background Technical Document
Network Connectivity	Policy Brief  Background Technical Document
Regional Accessibility	Policy Brief  Background Technical Document
Jobs-Housing Balance	Policy Brief  Background Technical Document

To provide your comments on the results of the U.C. research, please click here.

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