A Modified Approach for Estimation of Passenger Car Units on Intercity Divided Multilane Highways

• Autorzy: Srikanth S. , Mehar A.

Identyfikatory

DOI

10.5604/01.3001.0010.0528

• Języki publikacji: EN

Abstrakty

EN

The accuracy of measured traffic flow on a roadway is highly depends on correctness of PCUs used for converting traffic volume. Field data for the present study was collected from the mid-block road sections of different divided multilane highways in India. Video graphic method was used for collecting the field data. PCUs are estimated from the available methods as given in the literature by using traffic flow data observed in the field. Present study describes a modified methodology for estimation of PCU value of subject vehicles that includes the time headway as influencing parameter. The approach used in the present study is inspired from the method of dynamic PCU estimation where a PCU is expressed as the ratio of speed ratio and area ratio of standard cars to the subject vehicle type. Unlike dynamic PCU method, this method includes time headway factor for PCU estimation. The method found more realistic and logical as it provides relatively higher values of PCUs than those obtained from dynamic PCU method. Simulation of traffic flow was also performed through microscopic simulation model VISSIM for generating congestion and for comparing estimated PCU values at the level of maximum traffic volume. The methodology adopted in this study will be extended for development of comprehensive PCU model by including more numbers of influencing factors under varying traffic and roadway conditions.

Słowa kluczowe

EN

PCU; traffic volume; multilane highway; speed; VISSIM

PL

PCU; natężenie ruchu; drogi wielopasmowe; prędkość; VISSIM

• Wydawca: Warsaw University of Technology, Faculty of Transport
• Czasopismo: Archives of Transport
• Rocznik: 2017
• Tom: Vol. 42, iss. 2
• Strony: 65--74
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wzory

Twórcy

autor

Srikanth S.

• Transportation Division, Department of Civil Engineering, National Institute of Technology, Warangal, Telangana, India

autor

Mehar A.

• Transportation Division, Department of Civil Engineering, National Institute of Technology, Warangal, Telangana, India

Bibliografia

• [1] ANAND, S., SEKHAR, S.V.C., KARIM, M. R., 1999. Development of Passenger Car Unit values for Malaysia. Journal of the Eastern Asia Society for Transportation Studies, 3(3), 1-9.
• [2] ARASAN, V. T., ARKATKAR, S.S., 2010. Micro-simulation Study of Effect of Volume and Road Width on PCU of Vehicles under Heterogeneous Traffic. Journal of Transportation Engineering, ASCE, 136(12), pp.1110-1119.
• [3] BISWAS, S., CHAKRABORTY, S., CHANDRA, S. & GHOSH, I. 2017. Kriging-Based Approach for Estimation of Vehicular Speed and Passenger Car Units on an Urban Arterial. Journal of Transportation Engineering, Part A: Systems, 143(3).
• [4] CENTRAL ROAD RESEARCH INSTITUTE, 1982. Road user cost study in India, Final report, New Delhi.
• [5] CHANDRA, S., KUMAR, V., SIKDAR, P. K., 1995. Dynamic PCU and Estimation of Capacity of Urban Roads, Indian Highways. Indian Roads Congress, 23(4).
• [6] CHANDRA, S., ZALA, L.B., KUMAR, V., 1997. Comparing the methods of passenger car unit estimation. Journal of Institution of Engineer, 78, pp.13-16.
• [7] CHANDRA, S., KUMAR, U., 2003. Effect of lane width on capacity under Mixed Traffic Conditions in India. Journal of Transportation Engineering, ASCE. 129(2), pp. 155-160.
• [8] GIUFFRE, G., GRANA, A., MAURO, R., SILVA, A.B. & CHIAPPONE, S. (2015). Developing Passenger Car Equivalents for Freeways by Micro-simulation. Transportation Research Procedia, 10, pp. 93-102.
• [9] HIGHWAY CAPACITY MANUAL, 1965. Highway Research Board, National Research Council. Department of Traffic and Operations, Special Report 87, Committee on Highway Capacity, Washington, DC.
• [10] HIGHWAY CAPACITY MANUAL, 2000. Transportation Research Board, National Research Council, Washington, D.C.
• [11] KIMBER, R.M., MCDONALD, M., HOUNSELL, N., 1985. Passenger Car Units in Saturation Flows: Concept, Definition, Derivation. Transportation Research-B, 198(1), pp.39-61.
• [12] MEHAR, A., CHANDRA, S., VELMURUGAN, S., 2013. Highway Capacity Through Vissim Calibrated for Mixed Traffic Conditions. KSCE Journal of Civil Engineering, 18(2), pp.639-645.
• [13] MEHAR, A., CHANDRA, S., VELMURUGAN, S., 2015. Effect of Traffic Composition on Capacity of Multilane Highways. KSCE Journal of Civil Engineering, pp.1-8.
• [14] NOKANDEH, M.M., GHOSH, I., CHANDRA, S., (2016). Determination of Passenger-Car Units on Two-Lane Intercity Highways under Heterogeneous Traffic Conditions. Journal of Transportation Engineering, ASCE, 142(2).
• [15] WERNER, A., MORALL, J.F., 1976. Passenger car equivalencies for trucks, buses and recreational vehicles for two lane rural highways. Transportation Research Record, National Research Council, 615, pp.10–17.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)