Train scheduling is the process of timetabling and train assignment along a given train network.rnThe key objective of this project is to design an efficient train scheduling of Addis Ababa LightrnRail Transit system which minimizes passenger waiting time and operational costs withoutrnjeopardizing passenger safety.rnThere are many approaches/techniques that are used to model and implement train schedulingrnespecially for light rail transit systems that have many intermediate stations. In this thesisrnreviewing previous relevant literatures with a special attention paid to the light rail transitrnsystems, quantitative analysis and simulation methods are being used. The scheduling is beingrngenerated using two separate rule-based systems that are off peak hours and peak hours. Thernmain components of train scheduling such as trains, stations, routes are being described orrnspecified with their constructive parameters. The mathematical model components proposed arernbeing analyzed, and the extent that reflects real business practice is being presented. It wasrnuncovered that the objective function which includes both the service level objectivern(minimizing passenger travel and waiting time) and the operational objective (minimizing thernnumber of trains) especially for the Addis Ababa Light Rail Transit (AALRT) system as it is newrnin Ethiopia.rnFinally, this paper is focused on the constraints involved on the current system that can be usedrnto generate an efficient train scheduling which is being modeled, solved the model, validated thernmodel via simulation and verified the results in such a way that the schedule is made to berndisplayed at any station to show the trains allocated along that route with their arrival andrndeparture times on the operating time of whole day to satisfy the desired service levels.