Sep 13, 2018
This report documents the development of the mode-destination (MD) models that form part of the South East Wales Transport Model (SEWTM). The South East Wales mode-destination models were developed by transferring the mode-destination models developed for the PRISM West Midlands model (PRISM) to South East Wales. Local South East Wales data collected by the Welsh Government as part of a Personalised Travel Planning (PTP) project were used to support this methodology.
The report describes the PRISM MD models and presents the transfer methodology, setting out the theory underlying the approach and illustrating how it has been implemented to allow the PRISM models to be transferred to the South East Wales context.
The inputs to the model transfer are described. These are the PTP data from which observed mode-destination choice information has been taken, level-of-service and monetary cost information that has been supplied from the 2015 highway and public transport (PT) networks and attraction data used to represent the attractiveness of destination zones.
The model specifications are documented, detailing both the PRISM model specifications that provided the starting point for the model transfer, as well as the adjustments that have been made to the models so that they are applicable to the South East Wales context.
The key model results presented are the scales obtained for each model transfer that provide a measure of the fit of the PRISM models in the South East Wales context. To validate the models, implied values-of-time, elasticities and trip length distributions have been analysed.
Spatial transfer approach
Summary and recommendations
Tour building analysis
Ward coding in PTP survey
Public transport level of service data
West Midlands model parameters
Transfer model parameters