The methods of obtain the O-D matrix from traffic counts

ABSTRACTOrigin-Destination (O-D) matrix is the basic data planning process in the urbantransportation planning. Up to today various methods have been used to obtain O-D triptables. Because the known methods are very costly and labor intensive, the researchers triedto find new methods. Consequently, more cost effective indirect or synthetic O-D estimationtechniques have been developed. In these new methods, differences between traffic volumecounts of some links and priori traffic counts of the same links are used for calibration ofsome parameters. Using this approach as a basis the idea to obtain O-D trip tables from trafficcounts is formed and for obtaining O-D trip tables, various methods are suggested. Existingtraffic volumes are used to estimate most likely O-D matrices in these methods.In this thesis the basic formulations that have been proposed to formulate and solve the staticO-D problem are analysed, the models and formulations belonging to these approaches aretested and aimed to introduce as a sample on a sample network numerically. Up to todaymany methods have been suggested on this topic. Among these methods, the methodsynthetically using link flow observations based on Maximum Entropy techniques is analysedin detail.Keywords: Traffic Engineering, O-D Matrix, Traffic Counts, Entropy, TransportationPlanning, Demand Analysis.