Determination of Basic Saturation Flow Rate in Istanbul

Yıl 2018, Cilt: 4 Sayı: 1, 47 - 52, 01.03.2018

Süleyman Dündar Kemal Selçuk Öğüt

Öz

In traffic signal operations, the saturation
flow rate is one of the key parameter for the calculation of signal timing. The
saturation flow rate for different type of roads is simply calculated by
multipliying the basic saturation flow rate, which is determined for predefined
road type and flow condition with side factors. The aim of this study is to
calculate the basic saturation flow rate in Istanbul. This calculation is based
on the evaluation of vehicles’ headways at signalized intersection. The field study is conducted at 23
signalized intersections having basic conditions and 18,311 vehicle headways
are analyzed. The initial calculations in this study are the determination of the
saturation flow region, in other word from which vehicle in the queue does the
saturation flow start. It is found that the saturated headway starts from
second to eighth vehicle while the saturated headway is determined as 1.9
seconds, which is equivalent to 1,894 passenger cars unit per hour as
saturation flow rate.

Anahtar Kelimeler

Signalized intersection, Saturated headway, Saturation flow rate, Basic saturation flow rate

Kaynakça

• Transportation Research Board, (1950) Highway Capacity Manual, HRB and the Bureau of Public Roads, Washington, DC, USA.
• Webster, F. V., Cobbe, B. M., (1966) Traffic Signals, Technical Paper 56, HMSO, London, England.
• Branston, D., Van Zuylen, H., (1978) The Estimation of Saturation Flow, Effective Green Time and Passenger Car Equivalents at Traffic Signals by Multiple Linear Regression, Transportation Research, Vol. 12 (1), 47–53.
• Akcelik, R., (1981) Traffic Signals: Capacity and Timing Analysis Research Report ARR 123, Australian Road Research Board, Vermont, South Victoria.
• Hussain, A. M., (1990) Determination of Saturation Flows at Signalized Intersection in Malaysian Urban Areas, Proceedings of the Sixth Conference, Road Engineering Association of Asia and Australasia, [CD-ROM] Kuala Lumpur, Malaysia..
• Turner J., Harahap, G., (1993) Simplified Saturation Flow Data Collection Methods, Transportation Research Laboratory, England.
• Bonneson, P.E., Nevers, B., J. Zegeer, J., (2005) Guidelines for Quantifying the Influence of Area Type and Other Factors on Saturation Flow Rate, Texas Transportation Institute, College Station, Texas, USA.
• Rahman, M., Nur-ud-deen, S. A., Hassan, T., (2005) Comparison of Saturation Flow Rate at Signalized Intersections in Yokohama and Dhaka, Proceedings of the Eastern Asia Society for Transportation Studies, Vol. 5, 959–966.
• CCG, (2010), Canadian Capacity Guide for Signalized Intersections, Institute of Transportation Engineers, Canada.
• Transportation Research Board, (2010), Highway Capacity Manual, National Research Council, Washington, DC, USA.
• Branston, D., Gipps, P., (1981) Some Experiences with a Multiple Regression Method of Estimating Parameters at the Traffic Departure Process, Transportation Research, Vol. 6A, 445–458.
• Kimber, R.M., McDonald, H., Hounsell, N.B., (1985) Passenger Car Units in Saturation Flows: Concept, Definition, Derivation, Transportation Research, Vol. 1B, 39–61.
• Lee, J., Chen R. L., (1986), Entering Headway at Signalized Intersections in a Small Metropolitan Area, Transportation Research Record 1091, 117-126, Washington, DC, USA.
• Lee, H.S., Do, T.W., (2002) Saturation Headway of Through Movement at Signalized Intersections in Urban Area, Journal of Transportation Research Society of Korea, Vol. 20, No. 5, 23-31.
• Bester, C. J., Meyers W.L., (2011) Saturation Flow Rates, Proceedings of the 26th South African Transport Conference (SATC), 560-568, Johannesburg.
• Stanić, B., Tubić Vladan, Čelar, N., (2011) Straight Lane Saturation Flow and Its Rate in Serbian Cities, Transport, Vol. 26, No. 3, 329-334.
• Gerlough, D.L., Wagner, F.A., (1967) Improved Criteria for Traffic Signals at Individual Intersections, Highway Research Board NCHRP No.32, Washington, DC.
• Miller, A. J., (1968) Australian Road Capacity Guide-Provisional Introduction and Signalised Intersections”, ARR 79. Australian Road Reseach Board.
• Branston, D., (1979) Some Factors Affecting the Capacity of Signalized Intersections, Traffic Engineering and Control 20 (8/9), 390-396.
• Akova, M., (1979) Investigation of Effect of Posture, Departure and Discharge Conditions in Calculation Methods and Appropriate to the Reality of Our Country at Signalized Intersection, PhD Thesis, Istanbul Technical University, Turkey.
• Kimber, R. M., Semmens, M.C., (1982) An Experiment to Investigate Saturation Flows at Traffic Signal Junctions. Traffic Errgineering and Control 23, 110-117.
• Bhattacharya, P. G., Bhattacharya, A. K., (1982) Observation and Analysis of Saturation Flow Through Signalised Intersections in Calcutta, Indian Highways, 10, 11–33.
• Hussayin, A. S., Shoukry, W.S., (1986) Saturation Flow and Effective Approach Width at Signalised Intersections in Greater Cairo, 6th African Highway IRF Conference.
• Coeymas, J. E., Meely, C. B., (1988) Basic Traffic Parameters in the Case of Santiago” (Unpublished).
• De Andrade, J. P., (1988), The Performance of Urban Intersections in Brazil”, PhD Thesis, University of Southampton, (Unpublished).
• Stanić, B., (1991) Research on Signal Timing Plan Effects at Saturation Flow, PhD Thesis, University of Belgrade, Serbian.
• Al-Ghamdi, A. S., (1999) Entering Headway for Through Movements at Urban Signalized Intersections, Transportation Research Record 1678, 42-47, Washington, DC, USA.
• HBS, (2001) German Highway Capacity Manual, Germany.
• Čelar, N., (2007) Contribution to the Survey of Design Values of Saturated Flow at Signalized Intersections”, MSc Thesis, University of Belgrade, Serbian.
• Çalışkanelli, S.P., (2010) Investigation of Headway Distribution of the Vehicles Departing From Signalized System at 9 Signalized Intersections in Izmir, Ph. D Thesis, Dokuz Eylul University, Turkey.
• Polat, A., Sarısoy, G., Öğüt, K.S., (2015) Determining of Start-up Lost Time and Saturatin Flow Rate at Signalized Intersections in Small Cities, 11th Transportation Congress, 129-138, Istanbul, Turkey.
• Cetin, M. Murat and Y. S., “A Mathematical Model for Determining Saturation Flows”, Technical Journal of Turkish Chamber of Civil Engineers, Volume 24, Number, 2, April 2013, p 4759-4777, 2013.
• Transportation Research Board, (1965) Highway Capacity Manual, National Research Council, Washington, DC, USA.
• Transportation Research Board, (1998) Highway Capacity Manual, National Research Council, Washington, DC, USA.
• Shao, C., Rong, J., Liu, X., (2011) Study on the Saturation Flow Rate and Its Influence Factors at Signalized Intersections in China”, 6th International Symposium on Highway Capacity and Quality of Service, Sweden.
• Shang, H., Zhang, Y., Fan, L., (2014) Heterogenous Lanes’ Saturation Flow Rates at Signalized Intersections, 9th International Conference on Traffic & Transportation Studies (ICTTS’2014), Vol. 138, 3-10.