Abstract
In the transportation studies it is deemed necessary to consider the interaction between transportation and land use in the analyses of the influence of transport facilities. The future land use pattern is exogenously given in transport models and the future regional and intraregional travel time is exogenously given in land use models. This work presents the travel demand model that utilizes a traditional four-step trip-based model process consisting of trip generation, trip distribution, mode choice and trip assignment for Olt county, accomplished with software specialized in transportation planning, travel demand modeling and network data management. At each step in the model development process, the model components are subjected to a series of aggregated and disaggregated validation tests following estimation of model parameters. Model validation is strictly an aggregated set of comparisons and represents the final test of the model’s ability to accurately simulate existing travel behaviors. The land use, demographic and economic data are the key inputs for the model. The main data source for the elaboration of the travel demand model was obtained from the local public authorities and the National Institute of Statistics. Model calibration was made based on the traffic count in the principal points of interest in the study area and actual transit boarding for each route for an entire weekday was obtained from on-board rider surveys.
Keywords: transport demand modeling, traffic counts, model estimation, land use, software for transportation planning