Effect of Rainfall on Traffic Flow Shock Wave Propagation

This study paper examined the effect of varying rainfall intensity on shock wave formation and propagation. Traffic data were generated from two sites on the J3 and J5 located in Johor and Terengganu States in Malaysia respectively for two months. The two sites were close to surface rain gauge stati...

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Bibliographic Details
Published inJournal of applied sciences (Asian Network for Scientific Information) Vol. 14; no. 1; p. 54
Main Authors Alhassan, Hashim Mohammed, Johnnie, Ben-Edigbe
Format Journal Article
LanguageEnglish
Published 01.01.2014
Subjects
Rain
Rainfall
Rarefaction
Shock waves
Streams
Traffic engineering
Traffic flow
Wave propagation
Malaysia, Malaya, Terengganu
Malaysia
Pakistan, Faisalabad
Online AccessGet full text
ISSN1812-5654
1812-5662

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Summary:This study paper examined the effect of varying rainfall intensity on shock wave formation and propagation. Traffic data were generated from two sites on the J3 and J5 located in Johor and Terengganu States in Malaysia respectively for two months. The two sites were close to surface rain gauge stations. Using the trapezoidal flow contraction technique, the flow rate changes resulting from the effect of rain were determined by comparing the current and capacity states of the traffic stream. The results indicate that in all rainy conditions shock waves do not form, instead rarefaction wave form. For site 2, the rarefaction wave speeds are 31.67 and 28.25 km h super( -1) for light and moderate rain. The speed and direction of the rarefaction waves are in the direction of the traffic stream and were lower than what will obtain at capacity.
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ISSN:1812-5654
1812-5662