TY - JOUR ID - 43835 TI - Application of A Route Expansion Algorithm for Transit Routes Design in Grid Networks JO - International Journal of Transportation Engineering JA - IJTE LA - en SN - 2322-259X AU - Khanzad, Iran Khanzad AU - Zarrinmehr, Amirali Zarrinmehr AU - Seyedabrishami, Seyedehsan Seyedabrishami AU - Saffarzadeh, Mahmoud Saffarzadeh AD - MSc Grad., Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran AD - Ph.D Candidate, Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran AD - Assistant Professor, Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran AD - Professor, Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran Y1 - 2017 PY - 2017 VL - 4 IS - 3 SP - 179 EP - 196 KW - Transit routes KW - grid transportation network KW - demand coverage KW - operational costs DO - 10.22119/ijte.2017.43835 N2 - Establishing a network of transit routes with satisfactory demand coverage is one of the main goals of transitagencies in moving towards a sustainable urban development. A primary concern in obtaining such anetwork is reducing operational costs. This paper deals with the problem of minimizing construction costsin a grid transportation network while satisfying a certain level of demand coverage. An algorithm isproposed following the general idea of “constructive algorithms” in related literature. The proposedalgorithm, in an iterative approach, selects an origin-destination with maximum demand, generates a basicshortest-path route, and attempts to improve it through a route expansion process. The paper reports thescenarios and further details of the algorithm considered for expanding a transit route in a grid network. Arandom 6×10 grid network is applied to report the results. The results support that application of theproposed algorithm notably reduces the operational costs for various amounts of demand coverage. UR - http://www.ijte.ir/article_43835.html L1 - http://www.ijte.ir/article_43835_d2345a3bb1edd287ba5262ac15c17b31.pdf ER -