An Assessment of Exclusive/Permissive Left-turn Signal Phasing
Report No: 82-R49
Published in 1982
About the report:
More than 70% of motorists returning a questionnaire distributed for the study favored the exclusive/permissive signal, while about 17% said the signal reduced delays, and 30% said it created a hazard. Intersections with one or more right-turn-on-red movements seemed especially susceptible to vehicular conflicts. The ratios of accidents involving left-turning vehicles to all accidents at intersections appeared to increase after the E/P signals were installed.
- 82-R49
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Last updated: January 20, 2024
