Work trips have attracted the attention of many urban planners. This is simply because of its share of total trips in peak traffic hour. In industrial metropolitan areas a significant part of work trips is to the outskirts and by the services of different companies. If offered heedlessly, these services can generate serious problems, including lack of efficiency, traffic congestion, employee dissatisfaction, air pollution and energy consumption. This study, by the goal of optimization of such services, tests the case of home-to-work traort system of Mobarake steel complex. This study has been accomplished by the close collaboration of traort experts, the police and the traortation management of the complex. Increasing efficiency and reducing traffic congestion are the goals and employee satisfaction and traffic conditions set by the police are the constraints. The basic paces of optimization are: 1- data collection 2-declaration of viewpoints and solution policies 3-allocate stops 4-define routs. Data collection and stops allocation are done by the use of ArcGIS software and the routing pace was done by the use of TransCAD GIS. Key Words Optimization, Allocation, Routing, Employee traort services, GIS، TransCAD
