Abstract
There are significant differences between individual observers. Fatigue was not important. Training observers is important.
There are significant differences between individual observers. Fatigue was not important. Training observers is important.
National Proving Ground for Freeway Surveillance Control & Electronic Traffic Aids, 1966, 42 p.
This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.