A Proposed Signal Operation and the Effect of ITS Cycle Length on Diverging Diamond Interchanges

Only three diverging diamond interchanges (DDI) existed in France prior to 2009. The DDI is a new type of diamond interchange for many professionals, and it has aroused much interest as a study subject. One major type of current study on DDIs primarily studies signal control strategies on the basis...

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Bibliographic Details
Published inITE journal Vol. 84; no. 11; p. 28
Main Authors Hu, Peifeng, Tian, Zong Z, Wu, Xianyu, Xu, Hao
Format Journal Article
LanguageEnglish
Published Washington Institute of Transportation Engineers 01.11.2014
Subjects
Computer simulation
Roads & highways
Simulation
Studies
Traffic control
Traffic flow
France
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Summary:Only three diverging diamond interchanges (DDI) existed in France prior to 2009. The DDI is a new type of diamond interchange for many professionals, and it has aroused much interest as a study subject. One major type of current study on DDIs primarily studies signal control strategies on the basis of field implementation and evaluation, and another major type involves comparison with conventional diamond interchanges, single-point urban interchanges, and other interchanges through microscopic simulation. Up to now, research on their modeling, analysis, and signal control strategies has been in the preliminary stages. This study introduces an advanced traffic signal operation and comprehensively studies the relationship between the cycle length and operation efficiency on a DDI under five traffic demand scenarios. The simulation results evaluated by VISSIM indicate that this study provides several evocative recommendations to traffic professors and engineers for selecting a good cycle length of DDIs.
ISSN:0162-8178