Entry and circulating flow relationship at a roundabout

This study examined the two formulas stated in the Arahan Teknik (1) 11/87 of the Malaysian Public Work Department to estimate the capacity of small and conventional roundabouts. Field survey, which cover the roundabout inventories, and vehicle classification were carried out. Vehicle classification...

Full description

Bibliographic Details
Main Authors: Chik, Abdul Aziz, Che Puan, Othman, Chai, Ming Jing
Format: Article
Language:English
Published: Faculty of Civil Engineering, UTM 2004
Subjects:
Online Access:http://eprints.utm.my/8294/
http://eprints.utm.my/8294/1/AbdulAzizChik2004_EntryAndCirculatingFlowRelationship.PDF
_version_ 1848891659320819712
author Chik, Abdul Aziz
Che Puan, Othman
Chai, Ming Jing
author_facet Chik, Abdul Aziz
Che Puan, Othman
Chai, Ming Jing
author_sort Chik, Abdul Aziz
building UTeM Institutional Repository
collection Online Access
description This study examined the two formulas stated in the Arahan Teknik (1) 11/87 of the Malaysian Public Work Department to estimate the capacity of small and conventional roundabouts. Field survey, which cover the roundabout inventories, and vehicle classification were carried out. Vehicle classification survey indicates lower entry flows at the single lane entries compared to the multilane entries for both morning and evening peak hours. Statistical analysis was used to identify the correlation between the circulating flows, entry flows and the entry width. Results showed that the capacity obtained from the weaving concept was generally higher than the regression equations for the single and multi entries. The difference between these results may be due to the regression equations that consider the interaction between the entry and circulating flow and the geometric parameters, while the Arahan Teknik (J) 11/87 only address the geometric parameter. The entry flows for both single and multilane entries were highly dependent on the circulating flows.
first_indexed 2025-11-15T21:01:29Z
format Article
id utm-8294
institution Universiti Teknologi Malaysia
institution_category Local University
language English
last_indexed 2025-11-15T21:01:29Z
publishDate 2004
publisher Faculty of Civil Engineering, UTM
recordtype eprints
repository_type Digital Repository
spelling utm-82942017-03-09T03:29:10Z http://eprints.utm.my/8294/ Entry and circulating flow relationship at a roundabout Chik, Abdul Aziz Che Puan, Othman Chai, Ming Jing TE Highway engineering. Roads and pavements TA Engineering (General). Civil engineering (General) This study examined the two formulas stated in the Arahan Teknik (1) 11/87 of the Malaysian Public Work Department to estimate the capacity of small and conventional roundabouts. Field survey, which cover the roundabout inventories, and vehicle classification were carried out. Vehicle classification survey indicates lower entry flows at the single lane entries compared to the multilane entries for both morning and evening peak hours. Statistical analysis was used to identify the correlation between the circulating flows, entry flows and the entry width. Results showed that the capacity obtained from the weaving concept was generally higher than the regression equations for the single and multi entries. The difference between these results may be due to the regression equations that consider the interaction between the entry and circulating flow and the geometric parameters, while the Arahan Teknik (J) 11/87 only address the geometric parameter. The entry flows for both single and multilane entries were highly dependent on the circulating flows. Faculty of Civil Engineering, UTM 2004 Article PeerReviewed application/pdf en http://eprints.utm.my/8294/1/AbdulAzizChik2004_EntryAndCirculatingFlowRelationship.PDF Chik, Abdul Aziz and Che Puan, Othman and Chai, Ming Jing (2004) Entry and circulating flow relationship at a roundabout. Jurnal Kejuruteraan Awam, 16 (1). pp. 48-60. ISSN 0128-0147
spellingShingle TE Highway engineering. Roads and pavements
TA Engineering (General). Civil engineering (General)
Chik, Abdul Aziz
Che Puan, Othman
Chai, Ming Jing
Entry and circulating flow relationship at a roundabout
title Entry and circulating flow relationship at a roundabout
title_full Entry and circulating flow relationship at a roundabout
title_fullStr Entry and circulating flow relationship at a roundabout
title_full_unstemmed Entry and circulating flow relationship at a roundabout
title_short Entry and circulating flow relationship at a roundabout
title_sort entry and circulating flow relationship at a roundabout
topic TE Highway engineering. Roads and pavements
TA Engineering (General). Civil engineering (General)
url http://eprints.utm.my/8294/
http://eprints.utm.my/8294/1/AbdulAzizChik2004_EntryAndCirculatingFlowRelationship.PDF