Citation

ITE J. 1982; 52(9): 28-35.

Copyright

(Copyright © 1982, Institute of Transportation Engineers)

DOI

unavailable

PMID

unavailable

Abstract

Recommended guidelines are presented for designing left turn phasing in Florida. The guidelines derived from the results of a literature review, field studies in Florida and other states, surveys of traffic engineers, driver surveys, and from the collective professional opinions of the subcommittee members (traffic engineers) charged with the task. Details are given of each phase of the study. The selection of the type of left turn phasing is discussed, namely, protected only, protected/permissive, permissive/protected, and split phasing. For each type of left turn phasing, an evaluation was conducted of the various types of signal heads, signal head locations, and supplemental signing that could be used. Each type of phasing is discussed in some detail. The recommendations presented are of reasonable technical design, are consistent with design practice in most states, and comply with the requirements of the MUTCD.