For updating the existing Origin- Destination matrix using link volumes the gradient descent approach has been used. Further, traffic counts in the concerned network are determined using traffic surveys in major arterial roads in Tiruchirappalli city. The traditional four-step modeling is done in CUBE, using these factors, to obtain a priori O-D matrix. The secondary data are collected from the municipal offices and other local government bodies of Tiruchirappalli district of Tamil Nadu. ![]() The various factors influencing the trip generation, considered in this paper are household data like employment, population, income and average household occupancy and residential density. CUBE is highly efficient transport modeling software whereas ArcGIS is a geospatial tool which gives the geographic information of the land. ![]() Direct method includes household and demographic data, whereas indirect method includes traffic counts. 1 TRIP MATRIX ESTIMATION FROM TRAFFIC COUNTS USING CUBE Subha Nair 1, Nisha Radhakrishnan 2, Samson Mathew 3 1 Post Graduate Student, 2 Assistant Professor, 3 Professor, Department of Civil Engineering, National Institute of Technology Trichy, Trichy, India Abstract This paper presents a distinguished method of integrating Direct and Indirect Methods of estimating O-D Matrix.
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