Effect of Vehicle Size on Highway Capacity in Thailand
Publication: Journal of Transportation Engineering
Volume 116, Issue 5
Abstract
Paper presents the results of a study undertaken to determine the capacity of an uninterrupted‐flow highway in Thailand. The effect of the size of vehicles on the capacity is also investigated. Passenger car equivalents (PCEs) for medium‐ and large‐sized vehicles are calculated. It is found that the value of basic capacity was 2,180 passenger cars per hour per lane (pcphpl), which represents an increase of 9% above the value of 2,000 pcphpl currently being used in Thailand. The overall effect on the capacity with the prevailing proportion of large‐sized vehicles is a capacity reduction on the order of 15%. PCEs for medium‐ and large‐sized vehicles are obtained as 1.0 and 1.5, respectively.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 116 • Issue 5 • September 1990
Pages: 658 - 666
Copyright
Copyright © 1990 ASCE.
History
Published online: Sep 1, 1990
Published in print: Sep 1990
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