This paper presents the results of a safety comparison which evalauted the five-section horizontal andcluster exclusive/permissive (E/P) left-turn signal displays. Three years of crash data were evaluated at 12 sites (six of each display type), containing an exclusive left-turn lane and separate left-turn signal display, in Bryan/College Station, Texas. The results of this analysis show that the crash rates between the cluster and horizontal left-turn display are not significantly different; however, there does appear to be some evidence to suggest that the cluster display provides a slightly lower crash frequency. These results are similar to those found in the literature.
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