Biobjective Traffic Assignment Models

  • place:

    Gebäude 11.40, Raum 253 

  • sws:

    19. November 2015 

  • Referent:

    Andrea Raith, Engineering Science Department, University of Auckland (Neuseeland) 

  • Zeit:


Biobjective Traffic Assignment Models

Transport modelling is a key component in analysing road transport network congestion and prioritising infrastructure improvements. In a generic transport modelling process transport demands are modelled between different origins and destinations in the network and split between transport modes such as motorised vehicles, public transport and cycling. The final stage is traffic assignment where the route choice of network users is modelled to obtain estimates of the flow of traffic on each road in the network based on the assumption that drivers aim to minimise their travel time or so-called generalised cost function. By modelling the nonlinear relationship between flow and travel time on a road congestion effects are captured. We propose to model route choice of drivers as a biobjective problem where drivers explicitly distinguish two (or more) objectives such as travel time and toll cost resulting biobjective traffic assignment (equilibrium) models. We introduce some approaches to solving these problems. Further, an application of biobjective route choice models is used to model cyclist route choice and to predict usage of cycling infrastructure.