Abstract
Signalized intersections play a significant role in better operational performance of the traffic flow system in the urban roadway network. The present study explored queued vehicles to estimates the passenger car unit of vehicle types at approaches of a signalized intersection. The passenger car unit was estimated with a developed model based on queue length with different vehicle compositions. Field data was collected from approaches of signalized intersections at various locations in Warangal City, India. Furthermore, the results of developed model PCU values compared with the outcomes of other popular methods. The developed model PCU values were used for calculating the saturation flow rate accurately at approaches of signalized intersections to compare with other popular methods. The model proposed in the present study was validated using statistical evidence which confirms the successful validation of the model under mixed traffic conditions. Different techniques were used to convert mixed traffic into uniform conditions hence, the developed model PCU values give better accuracy compared to other outcomes estimated from popular methods in the present study.
Similar content being viewed by others
Data Availability
Data is available with authors.
Abbreviations
- GEV:
-
Generalized Extreme Value
- HCM:
-
Highway Capacity Manual
- HCV:
-
Heavy Commercial Vehicle
- IRC:
-
Indian Road Congress
- LCV:
-
Light Commercial Vehicle
- LED:
-
Light Emitting Diode
- PCU:
-
Passenger Car Unit
- PCE:
-
Passenger Car Equivalent
- TRB:
-
Transportation Research Board
- USA:
-
United State of America
- 2W:
-
Two Wheeler
- 3W:
-
Three Wheeler
References
Arasan, V.T., Jagadeesh, K.: Effect of Heterogeneity of Traffic on Delay at Signalised Intersections. J. Transp. Eng. 121(5), 398–404 (1995)
Benekohal, R.F., Zhao, W.: Delay-based passenger car equivalents for trucks at signalized intersections. Transp. Res. Part A: Policy Pract. 34(6), 437–457 (2000)
Branston, D., Van Zuylen, H.: The estimation of saturation flow, effective green time and passenger car equivalents at traffic signals by multiple linear regression. Transp. Res. 12(1), 47–53 (1978)
Demarchi, S., Setti, J.: Limitations of passenger-car equivalent derivation for traffic streams with more than one truck type. Transp. Res. Rec. 1852, 96–104 (2003)
Greenshields, B.D., Shapiro, D., Ericksen, E.L.: Traffic performance at urban street intersections. Technical Report No. 1. Bureau of Highway Traffic, Yale University, New Haven (1947)
Kimber, R.M.: Passenger car units in saturation flow concept, definition, derivation. Transp. Res. Part B: Methodol. 19(1), 39–61 (1985)
Lam, W.H.K.: Saturation flows and passenger car equivalents at signalized intersections in Hong Kong. In: 2nd International Symposium on Highway Capacity, Melbourne (1994)
Molina, C.J.: Development of passenger car equivalencies for large trucks at signalized intersections. ITE J. 57(11), 33–37 (1987)
Mohan, M., Chandra, S.: Queue clearance rate method for estimating passenger car equivalents at signalized intersections. J. Transp. Eng. (English edition) 4(5), 487–495 (2017)
Rahman, M.M., Okura, I., Nakamura, F.: Measuring passenger car equivalents (PCE) for large vehicles at signalized intersections. J. East. Asia Soc. Transp. Stud. 5, 1223–1233 (2003)
Radhakrishnan, P., Mathew, T.V.: Passenger car units and saturation flow models for highly heterogeneous traffic at urban signalised intersections. Transportmetrica 7(2), 141–162 (2011)
Saha, P., Hossain, Q.S., Mahmud, H.M.I., Islam, M.D.Z.: Passenger Car Equivalent (PCE) of through vehicles at signalized intersections in Dhaka metropolitan city, Bangladesh. IATSS Res. 33(2), 99–104 (2009)
TRB: Highway capacity manual, 2nd edn. Transportation Research Board, Washington DC (1965)
TRB: Highway capacity manual, 5th edn. Transportation Research Board, Washington DC (2010)
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Consent for Publication
This work is the authors' own original work, which has not been previously published and not currently being considered for publication elsewhere.
Conflict of Interest
On behalf of all authors, the corresponding author states that there is no conflict of interest. Not Applicable.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Jithender, J., Sushmitha, R. Passenger Car Unit Estimation based on Queued Vehicles at Approaches of Signalized Intersection in Mixed Traffic Conditions. Int. J. ITS Res. (2024). https://doi.org/10.1007/s13177-024-00394-4
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s13177-024-00394-4