Delay at congested unsignalized intersections

Bashar Al-Omari, Rahim F. Benekohal

Research output: Contribution to conferencePaperpeer-review

Abstract

A new procedure for delay estimation at congested two-way stop controlled intersections was developed. Total delay was divided into two parts; service delay and queue delay. A linear empirical model was developed to estimate the average service delay as a function of conflicting traffic volumes. A set of empirical models was developed to estimate the average queue delay as a function of the subject approach traffic intensity. It was found that the queue delay increases exponentially as traffic intensity increases. The field data was used for comparing the proposed total delay model with the 1994 HCM model. It was found that the proposed model is significantly closer to the field data. It was also noticed that the 1994 HCM model underestimates the total delay. The proposed delay model is very practical and uses only two input variables; arrival rate and conflicting traffic volume.

Original languageEnglish (US)
Pages194-200
Number of pages7
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 Conference on Traffic Congestion and Traffic Safety in the 21st Century - Chicago, IL, USA
Duration: Jun 8 1997Jun 11 1997

Other

OtherProceedings of the 1997 Conference on Traffic Congestion and Traffic Safety in the 21st Century
CityChicago, IL, USA
Period6/8/976/11/97

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Safety Research

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