Volume List  / Volume 4 (3)

Article

TRAFFIC SIMULATION MODEL AND ITS APPLICATION FOR ESTIMATING SATURATION FLOW AT SIGNALISED INTERSECTION

DOI: 10.7708/ijtte.2014.4(3).06


4 / 3 / 320-338 Pages

Author(s)

Sheela Alex - College of Engineering, Trivandrum, India -

Kuncheria P Isaac - All India Council for Technical Education, New Delhi, India -


Abstract

The efficiency of a transportation network depends upon the performance characteristics of its various components. To improve the efficiency, proper planning and design of various facilities have to be implemented. For this, simulation models seem to be more powerful than analytical procedure. This paper focuses on simulating traffic movements at signalised intersections by developing a micro simulation model using a high level programming language. The developed model TRAFFICSIM, which is highly user friendly, is capable of simulating any traffic movements at various geometric as well as signal phasing characteristics. TRAFFICSIM is a true replication of the original traffic scenario as it is capable of updating the acceleration, lateral and linear spacing as well as deceleration characteristics which is highly influenced by the traffic behaviour and signal phasing. The validated model is then applied to determine the saturation flow models during 100% car only condition as well as mixed traffic conditions. The saturation flow model developed under 100% car only condition is s = 522w, where s is the saturation flow in pc/hr and w is the carriageway width in m. The saturation flow obtained under 100% car only both in homogeneous condition and in a mixed traffic condition is 1911 pc/hr and 1908 pc/hr respectively which shows close agreement with the HCM values.


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References:

Arasan, V.T.; Arkatkar, S.S. 2010. Microsimulation study of effect of volume and road width on PCU of vehicles under heterogeneous traffic, Journal of Transportation Engineering, ASCE. DOI: http://dx.doi.org/10.1061/(ASCE)TE.1943-5436.0000176, 136(12): 1110-1119.

 

Arasan, V.T.; Dhivya, G. 2010. Methodology for Determination of Concentration of Heterogeneous traffic, Journal of Transportation Systems Engineering and Information Technology, 10(4): 50-61.

 

Arasan, V.T.; Koshy, R.Z. 2005. Methodology for Modeling Highly Heterogeneous Traffic Flow, Journal of Transportation Engineering, ASCE. DOI: http://dx.doi.org/10.1061/(ASCE)0733-947X(2005)131:7(544), 131(7): 544-551.

 

Arasan, V.T.; Krishnamurthy, K. 2008. Study of the Effect of Traffic Volume and Road Width on PCU Values of Vehicles Using Microscopic Simulation, Journal of the Indian Roads Congress, 69(2): 133-149.

 

Arasan, V.T.; Vedagiri, P. 2006. Estimation of saturation flow of heterogeneous traffic using computer simulation. In Proceedings of the 20th European Conference on Modelling and Simulation, ECMS.

 

Banks, J.; Carson II, J.S.; Nelson, B.L.; Nicol, D.M. 2000. Discrete-Event System Simulation. Prentice Hall of India Private Ltd., New Delhi.

 

Drew, D.R. 1968. Traffic Flow Theory and Control. Mc Graw Hill Company, New York.

 

Gates, T.J.; Noyce, D.A.; Laracuente, L. 2007. Analysis of Dilemma Zone Driver Behavior at Signalized Intersections, Transportation Research Board, Annual Meeting CD-ROM, Paper No. 07-3351.

 

Gowri, A.; Sivanandan, R. 2008. Evaluation of left turn channelization at a signalized intersection under heterogeneous traffic conditions, Transport. DOI: http://dx.doi.org/10.3846/1648-4142.2008.23.221-229, 23(3): 221-229.

 

Hossain, M. 2001. Estimation of saturation flow at signalized intersections in developing cities: a micro-simulation modeling approach, Transportation Research Part A: Policy and Practice. DOI: http://dx.doi.org/10.1016/S0965-8564(99)00050-6, 35(2): 123-141.

 

Indian Roads Congress. 1994. Guidelines for the Design of At-Grade Intersections in Rural and Urban Areas—Special Publication 41. IRC, New Delhi, India.

 

Isaac, K.P. 1995. Studies on mixed traffic flow characteristics under varying composition, Ph.D. thesis, Bangalore University.

 

Isaac, K.P.; Veeraragavan, A. 1995. Headway distributions as an input to simulation models under mixed traffic flow. In Proceedings of the National Seminar on Emerging trends in Highway Engineering, Bangalore, T 2.1-2.14.

 

Keller, E.L.; Saklas, J.G. 1984. Passenger Car Equivalents from Network Simulation, Journal of Transportation Engineering. DOI: http://dx.doi.org/10.1061/(ASCE)0733-947X(1984)110:4(397), 110(4): 397- 411.

 

Mallikarjuna, Ch.; Rao, K .R. 20 06. A rea Occupancy Character istics of Heterogeneous traffic, Transportmetrica. DOI: http://dx.doi.org/10.1080/18128600608685661, 2(3): 223-236.

 

Radhakrishnan, P.; Mathew, T.V. 2011. Passenger car units and saturation flow models for highly heterogeneous traffic at urban signalised intersections, Transportmetrica. DOI: http://dx.doi.org/10.1080/18128600903351001, 7(2): 141-162.

 

Transportation Research Board. 2010. Highway Capacity Manual. National Research Council, Washington, D.C. Webster, F.V.; Cobbe, B.M. 1966. Traffic Signals. Technical Paper 56. HMSO, London.