Operational Assessment of Speed Priority for High-Occupancy Vehicle Lanes over General-Purpose Lanes
學年 102
學期 1
發表日期 2014-01-12
作品名稱 Operational Assessment of Speed Priority for High-Occupancy Vehicle Lanes over General-Purpose Lanes
作品名稱（其他語言）
著者 Chung, Chih-Lin
作品所屬單位 淡江大學運輸管理學系
出版者
會議名稱 The Transportation Research Board (TRB) 93rd Annual Meeting
會議地點 Washington D.C., U.S.A.
摘要 Current guidelines arguably do not properly address how much high-occupancy vehicle (HOV) lanes should be prioritized over general-purpose (GP) lanes. This study develops two schemes for HOV and GP lanes by utilizing the concept of “speed equilibrium,” which determines whether HOV lanes are under-prioritized, over-prioritized, or well-prioritized. The first scheme incorporates average vehicle occupancy with speed priorities, reflecting the HOV core value of carrying more persons in fewer vehicles; HOV lanes maintain higher equilibrium speeds than GP lanes, but the differences decrease as traffic speeds decrease from free flow to jam states. The second scheme is a revision of the existing HOV principle: equilibrium built upon the principle of time saved leads to increasingly greater HOV speeds relative to GP lane speeds, as traffic volumes increase. Both schemes are visualized in three-dimensional data plots to illustrate the effects of individual traffic variables. Using only a single measure, i.e., speed, ensures inferior HOV priority with respect to mobility and reliability. Observed freeway data were applied to the two schemes, and the results can be used to determine the necessity of HOV policy adjustment. The schemes are complimentary to current HOV operational assessments.
關鍵字 high-occupancy vehicle lane;average vehicle occupancy;travel time saving;freeway operational assessment
語言 en
收錄於
會議性質 國際
校內研討會地點
研討會時間 20140112~20140116
通訊作者 Chung, Chih-Lin
國別 USA
公開徵稿 Y
出版型式 電子版
出處 The Transportation Research Board (TRB) 93rd Annual Meeting, 21p.
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