Abstract
For the purpose of evaluating environmental impacts of transport programs such as LRT construction, it is necessary to understand the effects these programs cause over long term. Moreover, for the long term evaluation, we must consider the changes in the urban structure such as population distribution and environmental load caused by construction and maintenance. Therefore, in this study, we constructed the urban traffic simulation model which can show us the movement of cars, buses and trains, and behavior of the passengers in every minute. Using this model, we evaluated long term environmental impact of LRT construction considering different urban structure scenarios.