1887

oa Civil Engineer in South Africa - Peaking characteristics of urban traffic : technical paper

 

Abstract

A methodology developed by Jordaan in 1985 to determine flow in any rank hour of the year for rural traffic is shown to be applicable to urban traffic. The methodology, which has become known as the 'beta method', was tested on 45 traffic flow data sets obtained from 12 counting stations in the metropolitan areas of Johannesburg and Port Elizabeth. Whereas studies of rural traffic have concentrated on hourly flows, it was found more appropriate to analyse urban traffic in terms of 15 minute flow rates per direction of travel. In studying the 15 minute peaking characteristics, it transpired that a three-region modelling approach was required.

'n Metodiek wat deur Jordaan in 1985 ontwikkel is om plattelandse verkeersvloei in enige geordende uur van die jaar te bepaal, is gevind om toepaslik te wees op stedelike verkeer. Die metododiek, wat as die 'beta-metode' bekend geraak het, is op 45 verkeersdatastelle wat vanaf 12 telstasies in die metropolitaanse gebiede van Johannesburg en Port Elizabeth verkry is, getoets. Waar studies van plattelandse verkeer op uurlikse vloeie gekonsentreer het, is daar gevind dat dit meer toepaslik is om stedelike vloeie in terme van 15-minuuttellings per bewegingsrigting te analiseer. Die studie van 15-minuutverkeerskarakteristieke het getoon dat 'n drie-gebiedmodelbenadering benodig word.

Loading

Article metrics loading...

/content/civeng1/33/7/EJC25126
1991-07-01
2016-12-08
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error