Qiao Jing
Beijing University of Technology, Key Lab of Traffic Engineering, Beijing, 100124, China
Sun Li-shan
Beijing University of Technology, Key Lab of Traffic Engineering, Beijing, 100124, China
Zeng Wei
Tianjing Municipal Engineering Design and Research Institute, 300051, China
Rong Jian
Beijing University of Technology, Key Lab of Traffic Engineering, Beijing, 100124, China
ABSTRACT
Road traffic is a random and dynamic system while it is difficult to describe the traffic flow characteristics correctly, through the existing non-probability parameters. Evaluating the road network with such parameters will produce difficulty in traffic system management and planning. This paper guided by the theories of probability and traffic flow with primary consideration of random arrival of vehicle, aiming at the shortcomings of the past evaluation method, the unblocked thresholds in the urban roads of different levels are determined according to field survey of large numbers of drivers. On this basis, the parameter values of the BPR and the regression function are calibrated combined with road conditions in Tianjin of China and this paper gets the probability model of unblocked flow based on the random arrival of vehicle. Besides, the model is verified with simulation software Paramics. It is a new idea about the calculation method of unblocked reliability.
PDF References Citation
How to cite this article
Qiao Jing, Sun Li-shan, Zeng Wei and Rong Jian, 2013. Calculation Method of Unblocked Reliability Based on Random Arrival of Vehicle. Information Technology Journal, 12: 8657-8662.
DOI: 10.3923/itj.2013.8657.8662
URL: https://scialert.net/abstract/?doi=itj.2013.8657.8662
DOI: 10.3923/itj.2013.8657.8662
URL: https://scialert.net/abstract/?doi=itj.2013.8657.8662
REFERENCES
- Chen, A., H. Yang, H.K. Lo and W.H. Tang, 2002. Capacity reliability of a road network: An assessment methodology and numerical results. Transp. Res. Part B: Methodol., 36: 225-252.
Direct Link - Chen, A., P. Kasikitwiwat and C. Yang, 2013. Alternate capacity reliability measures for transportation networks. J. Adv. Transp. Sci., 47: 79-104.
CrossRef - Clark, S. and D. Watling, 2005. Modelling network travel time reliability under stochastic demand. Transp. Res. Part B: Methodol., 39: 119-140.
CrossRef - Du, Z.P. and A. Nicholson, 1997. Degradable transportation systems: Sensitivity and reliability analysis. Transp. Res. Part B: Methodol., 31: 225-237.
CrossRef - Xu, X. and R. Fu, 2012. Road network structural reliability based on mobility reliability. J. Shanghai Univ. (Nat. Sci. Edn.,), 18: 448-453.
Direct Link