Research Article | Open Access | 10.31586/TransportationEngineering.0204.02

Estimating Delay of Vehicles in Nearside Legs of the Signalized Intersections under Expectation Method in Under-Saturation Conditions for Isolated Intersection

Abstract

Signalized intersections are essential elements of road transport in cities, thus providing condition in which these key elements have optimal performance in different traffic conditions has always been a concern for traffic engineers. Normally, Average vehicle control delay (delay due to the presence of traffic lights) is used as performance indicators on signalized intersections that is estimated using a lot of equations, including the Webster, Green Shields and the equation described in the book "Highway Capacity Manual". But in these equations no place is include for the distribution of vehicles on the routes leading to the signalized intersections. Ignoring this issue could lead to a false estimate of the average amount of delay on the signalized intersections because of the type of their entrance resulting in inefficient operation of the intersection. Using Expectation Method, this paper proposes a better estimate of the amount of delay on the vehicles in signalized intersections, depending on frequency of entrance to the intersection. In the end it will be found out that different frequency distribution of vehicles at nearside legs of intersection lead to different delay estimates of vehicles.

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Reference

[1]
Iraj Bargegol, Vahid Najafi Moghaddam Gilani, Sadra Farghedayn. (2014), Analysis of The Effect of Vehicles Conflict on Pedestrian?s Crossing Speed In Signalized and Un-Signalized Intersection, Advances in Environmental Biology, 8(21), pp.: 502- 509.
[2]
Allsop, Richard E. (1972), Delay at a Fixed Time Traffic Signal-I: Theoretical Analysis, Transportation Science Vol. 6, No. 3, pp. 260-285.
[3]
Webster, F. V. (1958), Traffic Signal Settings, Road Research Technical Paper No. 39, Road Research Laboratory, Her Majesty?s Stationery Office, Berkshire, England.
[4]
Miller, A. J. (1968), Australian Road Capacity Guide Provisional Introduction and Signalized Intersections, Australian Road Research Board, Bulletin No. 4.
[5]
Newell, G.F. (1956), Statistical Analysis of the Flow of Highway Traffic through a Signalized Intersection, Quarterly of Applied Mathematics Vol. XIII, No. 4, pp. 353-368.
[6]
Hutchinson, T.P. (1972), Delay at a Fixed Time Traffic Signal-II, Numerical Comparisons of Some Theoretical Expressions, Transportation Science Vol. 6, No. 3, 1972, pp.286-305.
[7]
Sosin, J.A. (1982), Delays at Intersections Controlled by Fixed Traffic Signals, Traffic Engineering and Control, Vol. 21, No. 8/9, pp. 407-413.
[8]
Transportation Research Board. (2010). Highway Capacity Manual, Transportation Research Board. National Research Council. Washington D.C.
[9]
Cronje, W. B. (1983), Analysis of Existing Formulas for Delay, Overflow and Stops, Transportation Research Record 905, Transportation Research Board, National Research Council, Washington, D.C., pp. 89-93.
[10]
Van As, S.C., ?Overflow Delay at Signalized Networks,? Transportation Research, Vol. 25A, No.1, 1991, pp. 1-7.
[11]
Roger P.Roess, Prassas, William R.Mcshane. (2011), Traffic Engineering, 3td Ed, Pearson Prentice Hall.
[12]
Ali Amidi, Mohammad vahidi asl. (2014), Mathematical Statistics, Tehran University Press.

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Published
December 30, 2015
How to Cite
BARGEGOL, Iraj; MOGHADDAM GILANI, Vahid Najafi. Estimating Delay of Vehicles in Nearside Legs of the Signalized Intersections under Expectation Method in Under-Saturation Conditions for Isolated Intersection. Trends Journal of Sciences Research, [S.l.], v. 2, n. 4, p. 121-125, dec. 2015. ISSN 2377-8083. Available at: <http://tjsr.org/journal/index.php/tjsr/article/view/27>. Date accessed: 11 dec. 2018.
Section
Transportation Engineering