Using micro-simulation modelling to appraise a major transport scheme

摘要

In July 2002 Walsall Metropolitan Borough Council produced an Annex E submission to the Department for Transport for funding of a major transport scheme, the Walsall Town Centre Transport Package (TCTP). A VISSIM micro-simulation model was developed to assess the performance of the existing network and to test the potential impact of the proposed scheme in the local network context. The application of VISSIM for a major local transport scheme produced the opportunity to assess the implementation of 'bus gates' within the town centre, use of Vehicle Actuated Programming for signal controlled junctions and to assess impacts of pedestrian crossings and accessibility, which conventional packages would not detail at a micro level. The assessment of results led to the refinement of the transport elements at micro level and at macro level an evaiution of economic, environmental, safety and accessibility assessment indices for NATA assessment.