Sixth International Conference on Transportation Engineering
Time Headway Distribution in Urban Expressway Merging Section Considering Velocity Division
Publication: ICTE 2019
ABSTRACT
Time headway is an important parameter in traffic flow theory and plays an essential role in many fields of traffic engineering. Based on the traffic flow data of the inner lane, the kerb lane, and the acceleration lane in the merging section of the second ring urban expressway in Chengdu, this paper proposes to divide the time headway into several ranges by using the interval velocity of vehicles. The log-normal model, the exponentially modified Gaussian model, the non-central F-distribution model, and the generalized extreme value model are used to fit the time headway of three lanes in each velocity range, and K-S test is used to determine the goodness-of-fit for each model. Finally, the division scheme of the velocity range is discussed, and it is found that reasonable adjustment for the velocity range division can improve the fitting effect of the model for the time headway.
Get full access to this chapter
View all available purchase options and get full access to this chapter.
REFERENCES
Abtahi, SM, Tamannaei, M, Haghshenash, H. (2011). Analysis and modelling time headway distributions under heavy traffic flow conditions in the urban highways: case of Isfahan. Transport, 26(4): 375–382.
Adams, W.F. (1936). Road Traffic Considered As A Random Series. Journal of the Institution of Civil Engineers, 4(1): 121–130.
Al-Ghamdi, A.S. (2001). Analysis of time headways on urban roads: case study from Riyadh. Journal of Transportation Engineering, 127(4): 289–294.
Cowan, R.J. (1975). Useful headway models. Transportation Research, 9, 371–375.
Dawson, F., Chimini, L.A. (1968). The hyperlang probability distribution – a generalized traffic headway model. Highway Research Board, 230, 1–14.
Greenberg, I. (1966). The log normal distribution of headways. Australian Road Research, 2(7).
Ha, D.H., Aron, M., Cohen, S. (2012). Time headway variable and probabilistic modeling. Transportation Research Part C: Emerging Technologies, 25: 181–201.
Haight, F.A., Whisler, B.F., Mosher, W.W. (1961). New statistical method for describing highway distributions of cars. Highway Research Board Proceedings, 40, 557–564.
Rossi, R., Gastaldi, M., Pascucci, F. (2014). Gamma-GQM time headway model: endogenous effects in rural two-lane two-way roads. Procedia-Social and Behaviroal Sciences, 111: 859-868
Tolle, J.E. (1971). The log-normal headway distribution model. Traffic Engineering and Control, 13 (1), 22–24.
YE, F, ZHANG, Y. (2009). Vehicle type-specific headway analysis using freeway traffic data. Transportation Research Record: Journal of the Transportation Research Board, 124: 222–230.
Information & Authors
Information
Published In
ICTE 2019
Pages: 271 - 280
Editors: Xiaobo Liu, Ph.D., Southwest Jiaotong University, Qiyuan Peng, Ph.D., Southwest Jiaotong University, and Kelvin C. P. Wang, Ph.D., Oklahoma State University
ISBN (Online): 978-0-7844-8274-2
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: Jan 13, 2020
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.