Document
Date Created
2014
Publisher
Minnesota Department of Transportation
Format
Description
A flashing LED stop sign is essentially a normal octagonal stop sign with light emitted diodes (LED) on the stop sign's corners. A hierarchical Bayes observational before/after study found an estimated reduction of about 41.5% in right-angle crashes, but with 95% confidence this reduction could be anywhere between 0% and 70.8%. In a field study, portable video equipment was used to record vehicle approaches at an intersection before and after installation of flashing LED stop signs. After installing the flashing stop signs, there was no change in the relative proportion of clear stops to clear non-stops when minor approach drivers did not face opposing traffic, but the relative proportion of clear stops increased for drivers who did encounter opposing traffic.
Collection Name
Report Number
2014-02
File Type
Object File Name
201402.pdf
Rights Statement
Physical Location
MnDOT Library
Persistent Link
https://hdl.handle.net/20.500.14153/mndot.2946

Supporting Item