Accession Number : ADA320664

Title :   Effects of Rain on Daily Traffic Volume and on Driving Behaviour (Effecten van regen op verkeersvolume en op rijgedrag).

Descriptive Note : Final rept.,

Corporate Author : HOOFDGROEP MAATSCHAPPELIJKE TECHNOLOGIE TNO DELFT (NETHERLANDS)

Personal Author(s) : Hogema, J. H.

PDF Url : ADA320664

Report Date : 30 DEC 1996

Pagination or Media Count : 18

Abstract : As a part of the project road and weather conditions, a study was carried out with the aim to investigate the effects of rain on total daily traffic volume, and on driving behavior. With respect to the daily traffic volume, no effect of rain was found. Apparently, rain does not cause a major modality shift towards road traffic. Driving behavior in rain was found to be more cautious than in dry weather. The mean speed and the percentage of short time headways (< 1 s) were reduced in rain. Also the percentages of Time-To-Collisions < 5 and < 10 s were reduced in rain. However, since several safety studies reveal a higher accident rate in rain, this adaptation of driving behavior to rain is apparently insufficient to maintain the same level of safety.

Descriptors :   *TRAFFIC, *RAIN, *BEHAVIOR, *DRIVERS(PERSONNEL), VELOCITY, VOLUME, HIGH RATE, WEATHER, NETHERLANDS, ATTITUDES(PSYCHOLOGY), MOISTURE CONTENT, SHORT RANGE(TIME), SAFETY, LOW LEVEL, LEVEL(QUANTITY), ROADS, MEAN, DAILY OCCURRENCE, DUTCH LANGUAGE, COLLISIONS, ACCIDENTS.

Subject Categories : Meteorology
      Psychology
      Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE