VISIBLE DISTANCES AND SAFE SPEEDS DURING NIGHT DRIVING CAR MEETINGS

• NCJ Number: 2999
• Author(s): G JOHANSSON; K RUMAR
• Date Published: 1966
• Length: 17 pages
• Corporate Author: University of Uppsala
• Sale Source: National Technical Information Service
• Publication Type: Report (Study/Research)
• Language: English
• Country: Sweden

Annotation

INVESTIGATION TO DEMONSTRATE THE VISIBLE DISTANCES THAT CAN BE CONSIDERED REALISTIC DURING NIGHT DRIVING CAR-MEETINGS ON NON-ILLUMINATED ROADS.

Abstract

FROM THE EXPERIMENTAL DATA WERE CALCULATED THE MEETING SPEEDS THAT CAN BE CONSIDERED AS SAFE DURING VARIOUS CONDITIONS AND STATES OF THE DRIVER, THE CAR AND THE ROAD. THE MEDIAN VISIBLE DISTANCE WAS 23M AND THE 10TH PERCENTILE 15 M. THE CALCULATED SAFE MEETING SPEEDS FOR THE TESTED DRIVERS VARIED BETWEEN 25 KM/H AND 50 KM/H DEPENDING ON THE CONDITIONS CHOSEN. A SIMPLIFIED PARALLEL INVESTIGATION WITH 974 PARTICIPATING DRIVERS DID NOT SHOW ANY MARKED DIVERGENCIES. BIBLIOGRAPHY