Transplan v2: a regional traffic estimation model

Traffic estimation is necessary in order to understand future scenarios of transport demand. Most regional traffic models that are presently available are those that have been calibrated in developed countries. They are not suitable for use in third world countries due to a number of limitations in transferability. The TransPlan V2 model is a regional traffic model calibrated using data from the Colombo Metropolitan Region. It is based on two sets of data and a set of transport demand models. The data sets, which cover the socioeconomic, and road network data are simplified and can be collected without much difficulty. The estimation algorithms in the model maybe used, depending on the forecasting requirements and the availability of data. The model provides flexibility to specify different algorithms if the data requirement for the default model is not available. Its GIS interface provides a valuable tool in presenting model outputs