Skip navigation
Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorAhmad A.-
dc.contributor.authorRastogi, Rajat-
dc.identifier.citationInternational Journal of Civil Engineering(2017), 15(4): 585-598-
dc.description.abstractSufficient literature is available on approaches to deal with heterogeneous traffic on mid-blocks in developing countries, but not much work is done on roundabouts. The estimation of passenger car unit (PCU) for different vehicles to convert heterogeneous traffic into homogeneous traffic is a well-accepted procedure. But the parameters used for mid-blocks may not be helpful on roundabouts as traffic flow characteristics on the two locations are different. Suggested PCU values on roundabouts from developing countries are not recent, and needs a relook. It is also not clear whether to use static or dynamic PCU values on account of possible temporal and spatial variations across locations. This paper presents an estimation approach for PCUs on roundabouts and suggests using static value instead of dynamic. The problem to deal with re-estimation of PCU values at different locations, due to possible traffic flow variations, is dealt with by proposing a heterogeneity equivalency factor (H-Factor). The factor is multiplicative and converts heterogeneous traffic (veh/h) into homogeneous traffic (pcu/h). © 2017, Iran University of Science and Technology.-
dc.publisherSpringer International Publishing-
dc.relation.ispartofInternational Journal of Civil Engineering-
dc.subjectHeterogeneity equivalency factor-
dc.subjectHeterogeneous traffic-
dc.subjectLagging headway-
dc.subjectPassenger car unit-
dc.titleAn Approach to Deal with Heterogeneity on Roundabouts-
dc.affiliationAhmad, A., Department of Civil Engineering, Glocal University, Saharanpur, India-
dc.affiliationRastogi, R., Department of Civil Engineering, Indian Institute of Technology, Roorkee, India-
dc.description.correspondingauthorRastogi, R.; Department of Civil Engineering, Indian Institute of TechnologyIndia; email:
Appears in Collections:Journal Publications [CE]

Files in This Item:
There are no files associated with this item.
Show simple item record

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.