AN EXTENDED FAMILY OF TRAFFIC NETWORK EQUILIBRIA AND ITS IMPLICATIONS FOR LAND USE AND TRANSPORT POLICIES

Traffic assignment models have a central place in transport planning, for they provide necessary information on the traffic and congestion loads to be borne across a network and how these loads may vary depending on network configuration, design standard traffic control regime and travel demand distributions. The paper focuses on static equilibrium assignment models because of their relevance in transport policy analysis, as models of congested traffic networks that may be used to examine the effects of policy alternatives for land use-transport interactions and for environmental and energy management, travel demand management, traffic claming, and congestion management and road pricing. The paper formulates and applies a family of equilibrium assignment models with separate objective functions for travel time, travel time reliability, energy and emissions, for both individuals and the community. It also incorporates elastic travel demands and trip timing analysis, enabling the study of alternative network configurations, travel demand management policies, and population and land use distributions.