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The article presents a method for ranking various catchment areas of an urban area according to their current service condition of the walk environment and their improvement needs. The stud...

A stated preference (SP) approach is explored for valuation of travel time displayed as traffic information on a variable message sign (VMS) board. Two types of traffic information (called as TI-I and TI-II) are investigated and the valuation is carried out separately for private car and taxi users. Instantaneous travel time is considered as traffic information in TI-I, while instantaneous travel time along with its variation level is considered as traffic information in TI-II. The SP (choice based) data are analyzed by multinomial logit and random parameter logit (RPL) models. In RPL models, the random parameters are assumed to follow constrained triangular distribution, where mean equals its spread. The decomposition of preference heterogeneity around the mean of random parameter is also investigated in RPL models. A variation is observed in the values of travel time under TI-I and TI-II, highlighting the role of the content of VMS based travel-time information. Both travel time as traffic information a...

The effect of on-road variable message sign (VMS)-based traffic information on mixed traffic stream is evaluated using a multiclass and stochastic dynamic traffic assignment model. Two types of traffic information are considered which differ in terms of the content displayed on VMS board: one, the instantaneous travel time alone (TI-I) and the other instantaneous travel time along with its variation level (TI-II). The work is demonstrated with reference to a case study in Kolkata Metro City. The analysis of study corridors in a dynamic paradigm indicates that VMS-based traffic information can be instrumental for temporal and spatial management of congestion at corridor level. The influence of VMS is found to be more predominant at higher traffic volume levels. The benefit gained under TI-II is estimated marginally higher than that of TI-I which encourages further investigation on VMS displaying multiple items as traffic information.