Effect of Car/Truck Differential Speed Limits on Two-lane Highways Safety Operation Using Microscopic Simulation

The safety implications of car-truck speed limits have not been adequately researched for two-lane highways. On two-lane highways speed controls can have a significant effect on vehicles interactions. Two different types of speed control strategies are considered: Uniform and Differential. Safety im...

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Bibliographic Details
Published in:Procedia, social and behavioral sciences social and behavioral sciences, 2012-10, Vol.53, p.833-840, Article 833
Main Authors: Ghods, Amir H., Saccomanno, Frank, Guido, Giuseppe
Format: Article
Language:English
Subjects:
Overtaking
Speed limit
Two-lane highways
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Summary:The safety implications of car-truck speed limits have not been adequately researched for two-lane highways. On two-lane highways speed controls can have a significant effect on vehicles interactions. Two different types of speed control strategies are considered: Uniform and Differential. Safety implications are considered using three overtaking-related indicators: Number of vehicles overtaking, 2) Percentage time spent in “desire to overtake mode”, and 3) Average Time-to-Collision with the on-coming vehicle prior to returning to the original lane. Vehicle interactions affecting safety are estimated through the application of a calibrated microscopic traffic simulation model to a 6Km straight segment of two-lane highway.
ISSN:1877-0428
1877-0428
DOI:10.1016/j.sbspro.2012.09.932