Modelling the effects of road pricing on traffic using ERP traffic data

Litian Xie and Piotr Olszewski

Transportation Research Part A: Policy and Practice, 2011, vol. 45, issue 6, 512-522

Abstract: Singapore's Electronic Road Pricing (ERP) system involves time-variable charges which are intended to spread the morning traffic peak. The charges are revised every three months and thus induce regular motorists to re-think their travel decisions. ERP traffic data, captured by the system, provides a valuable source of information for studying motorists' travel behaviour. This paper proposes a new modelling methodology for using these data to forecast short-term impacts of rate adjustment on peak period traffic volumes. Separate models are developed for different categories of vehicles which are segmented according to their demand elasticity with respect to road pricing. A method is proposed for estimating the maximum likelihood value of preferred arrival time (PAT) for each vehicle's arrivals at a particular ERP gantry under different charging conditions. Iterative procedures are used in both model calibration and application. The proposed approach was tested using traffic datasets recorded in 2003 at a gantry located on Singapore's Central Expressway (CTE). The model calibration and validation show satisfactory results.

Keywords: Road; pricing; Trip; timing; Discrete; choice; model; ERP; traffic; data; Preferred; arrival; time (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (12)

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