01629560

Component

Traffic assignment in cases where a network includes tolled links commonly accounts for the heterogeneity of the value of time (VOT) among travellers to provide an accurate and sensitive model of users’ travel behaviour. The VOT heterogeneity in a traffic assignment is treated through considering a distribution for the variation of VOT among travellers. The distribution is converted to several discrete values, and each value is attributed to a traveller class. The origin-destination (O-D) travel demand is correspondingly divided between the traveller classes and assigned in the network using a multi-class traffic assignment (MCTA). The best VOT distribution is chosen through comparing the result of the MCTA with the traffic counts on selected links. The current paper addresses travellers’ heterogeneity in terms of VOT in different trip purposes in Brisbane, Australia. An MCTA is employed to find the most suitable distribution for each trip purpose, providing the best match between the estimated link volumes and the observed traffic volumes. The proposed methodology is applied to the South East Queensland (SEQ) model that includes Brisbane and uses EMME/4 software to run the MCTA model for eight different trip purposes. Meanwhile, the sensitivity of MCTA outputs to the shares of traveller classes, the mean VOT, the standard deviation (STD) of VOT, and the number of traveller classes is also addressed.

This paper was sponsored by TRB committee ADB10 Standing Committee on Traveler Behavior and Values.

01618707

17-03641

English

15p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; References; Tables

Link volume; Traffic assignment; Travel behavior; Value of time

Multiclass traffic assignment

Brisbane (Australia)

Highways; Planning and Forecasting

Transportation Research Board Annual Meeting 2017 Paper #17-03641

TRIS, TRB, ATRI

Dec 8 2016 11:23AM