Analysis for the use of cumulative plots for travel time estimation on signalized network

被引：18
作者：
Bhaskar A. [1 ]
Chung E. [2 ]
Dumont A.-G. [1 ]
机构：
[1] Ecole Polytechnique Fédérale de Lausanne, EPFL-ENAC-ICARE-LAVOC, Lausanne CH-1015
[2] Queensland University of Technology, QUT Gardens Point Campus, Brisbane, QLD 4001
来源：
International Journal of Intelligent Transportation Systems Research | 2010年 / 8卷 / 3期
关键词：
Cumulative plots; Signalized network; Stop-line detectors. aggregate detector data; Urban travel time;
D O I：
10.1007/s13177-010-0012-y
中图分类号：
学科分类号：
摘要：
This paper provides fundamental understanding for the use of cumulative plots for travel time estimation on signalized urban networks. Analytical modeling is performed to generate cumulative plots based on the availability of data: a) Case-D, for detector data only; b) Case-DS, for detector data and signal timings; and c) Case-DSS, for detector data, signal timings and saturation flow rate. The empirical study and sensitivity analysis based on simulation experiments have observed the consistency in performance for Case-DS and Case-DSS, whereas, for Case-D the performance is inconsistent. Case-D is sensitive to detection interval and signal timings within the interval. When detection interval is integral multiple of signal cycle then it has low accuracy and low reliability. Whereas, for detection interval around 1.5 times signal cycle both accuracy and reliability are high. © Springer Science+Business Media, LLC 2010.
引用
收藏
页码：151 / 163
页数：12
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