Yellow Light Time Standards

shortyellowlights – excerpt

Legislation mandating proper yellow light times is mostly non-existent. It is one of the goals of this project to establish national standards to protect motorists.

For the purposes of this project, we have put together a general guide to appropriate yellow light durations.

This guide is intended to help identify potentially dangerous short yellow light times. Whenever possible, suspicious timings will be confirmed by a trained, objective traffic engineer.

Recommended Yellow Light Times
Three seconds should be the absolute minimum time for any intersection.

25 MPH — 3.0 Seconds
30 MPH — 3.5 Seconds
35 MPH — 4.0 Seconds
40 MPH — 4.5 Seconds
45 MPH — 5.0 Seconds
50 MPH — 5.5 Seconds
55 MPH — 6.0 Seconds

For your information, a technical explanation of the Institute of Transportation Engineers (ITE) formula for calculating yellow light times is included below (source): … (more)

Yellow Light time standards are largely missing. Some people are calling for some new standards. This is an important issue for a number of reasons so we will post a number of articles.

RELATED:
http://www.motorists.org/red-light-cameras/yellow-lights

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