Date of Award

5-2026

Document Type

Thesis

Degree Name

Master of City and Regional Planning (MCRP)

Department

City and Regional Planning

Committee Chair/Advisor

Dr. Madeleine Bolick

Committee Member

Dr. John Gaber

Committee Member

Dr. Eric Morris

Abstract

This study evaluates how ramp meters, traffic lights installed on highway on-ramps, are used to reduce traffic on the West Coast of the United States, specifically in California, Oregon, and Washington. This research was conducted to better understand how ramp meters are planned and implemented, and to help government agencies manage traffic effectively without adding new highway lanes.

This study reviewed 129 public documents from federal, state, and local agencies to evaluate public involvement in ramp metering planning, concerns about the meters, costs and funding for the meters, and the meters’ design and implementation.

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