Sydney Strategic Model Re-estimation

This report documents the re-estimation of the mode-destination model components of the Sydney Strategic Transport Model (STM). The report starts with a discussion of the key modelling assumptions in terms of the use of tours and trips, a summary of the travel purposes represented, a description of the travel modes and a definition of the model time periods. The level-of-service data used to describe travel conditions for highway and public transport models is also described. The report goes on to discuss how the mode-destination model structures have been extended to predict the choice between toll road and non-toll road alternatives, and to represent the choice of access mode and access station for train. A detailed description of the mode and destination alternatives in the model is provided, and the variables included in the mode-destination utilities are described. In terms of model results, a discussion is provided on how the cost formulations in the model have been represented, and the results in terms of the extension in model scope to include toll roads and train access mode and access station are discussed. Model validation results are presented with model elasticities, implied values of time and comparisons of predicted and observed trip length distributions documented. The report concludes with a summary of the findings from the re-estimation task.