TY  - JOUR
PY  - 1986//
TI  - Guidelines for protected/permissive left-turn signal phasing
JO  - Transportation research record
A1  - Cottrell, Benjamin H., Jr
SP  - 54
EP  - 61
VL  - 1069
IS  - 
N2  - Guidelines for the use of protected/permissive left-turn signal phasing were developed by collecting and analyzing data on traffic and roadway conditions for protected-only, protected/permissive, and permissive left-turn phasings to identify relationships among these conditions and signal phasings. The following left-turn signal aspects are addressed: (a) traffic volume based on the peak-hour minimum left-turn volume and the product of the peak-hour left-turn and opposing volumes with lower and upper limits, (b) annual left-turn accident experience based on the critical number and rate, (c) left-turn traffic conflict experience based on the critical number and rate, (d) left-turn delay, (e) site condition, (f) user cost savings for protected/permissive versus protected-only left-turn phasing, and (g) traffic engineering judgment.<p /> <p>Language: en</p>
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/
ID  - ref1
ER  -