Modelling of delay induced by downstream traffic disturbances at signalised intersection

Kamran Ahmed, Ghassan Abu-Lebdeh

Research output: Contribution to journalConference articlepeer-review


This paper presents models to estimate delay at signalised intersections that is induced or caused by downstream traffic disturbances. The models use basic traffic flow properties, control parameters at neighbouring intersections, and roadway characteristics. The results show that delay caused by downstream disturbances can be significant and therefore must be considered in Level of Service and capacity evaluation. The results show that dynamic control becomes critical when downstream disturbances are frequent, and that certain control parameters such as offsets and green splits at upstream and downstream approaches play a key role in reducing such delay.

Original languageEnglish
Pages (from-to)1493-1505
Number of pages13
JournalProceedings - Conference of the Australian Road Research Board
Publication statusPublished - 2003
Externally publishedYes
EventProceedings - 21st ARRB and 11th REAAA Conference, Transport Our Highway to a Sustainable Future - Cairns, QLD, Australia
Duration: May 18 2003May 23 2003

ASJC Scopus subject areas

  • Transportation


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