The objective of this study was to determine the change in crash history at intersections after installation of a traffic signal. Signals installed based on the warrants from an engineering study resulted in a decrease in angle collisions with an increase in the less severe rear end collisions. At intersections where signal warrants were not met, there was a smaller decrease in angle collisions and a larger increase in rear end collisions. The removal of unwarranted traffic signals did not result in a crash problem. The analysis shows that the warrants given in the MUTCD should be followed when determining the need for a traffic signal installation with the installation based on an engineering study.
Crash History After Installation of Traffic Signals (Warranted vs. Unwarranted)
2008
26 pages
Report
Keine Angabe
Englisch
Transportation Safety , Road Transportation , Transportation & Traffic Planning , Transportation , Motor vehicle accidents , Traffic signals , Intersections , Accident analysis , Warranties , History , Traffic volume , Traffic safety , Traffic control devices , Kentucky , Evaluation , Manual on Uniform Traffic Control Devise(MUTC) , Angle crash , Rear end crash
Crash Experience Warrant for Traffic Signals
NTIS | 2014
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Engineering Index Backfile | 1931
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Engineering Index Backfile | 1931