Operation Time Schedule Optimization For Improving The Customer Satisfaction In AA-LRT,ethiopia

Now,the AA-LRT system operation is in its initial phase.Hence,most operations are working in their lower level such as the speed,headway time and line capacity.But still,this is reasonable in order to familiarize with the system for gaining experience in the process and to grow up step by step to its higher performance level.One of the foremost decisive elements to possess a good performance during a railway operation is that the train timetable.With a good train timetable: the train can go faster,more frequently,more safely with efficient service to the passengers and with optimal use of the available resources.So that,investigating and studying of the present train operation schedule specifically for the newly operated AA-LRT schedule features a fundamental importance to style a new train operational schedule with better quality.In this thesis,the most parameters which have a big influence on the planning of train operational schedule are selected.To mention some of them: the headway time,dwell time,journey time,speed,braking distance,synchronization of trains and other available resources.Therefore,these parameters are discussed in detail and their values are calculated.Based on these calculated results,comparisons between the present schedule and therefore the obtained parameters are done.Consequently,from the comparison results the optimal values are to be taken to style the new timetable.To analysis the validate of those calculated values,simulating software called Arena is used.In the Arena software parameters like headway,dwell time,speed,synchronization time,the number of trains and safety block are used as inputs.When those parameters are simulated,it runs correctly and gives valid result including visualizing animation to show the real traffic movement.Therefore,from the output of the simulation a choice is formed for every parameter to match with the prevailing schedule and to offer an attention to their effect on the design of the timetable.Finally based on the calculated values and simulating results a better result for the main parameters of the timetable is found such as for the current speed a headway time of 8 minutes should be used and for the present available number of trains a speed of 30km/h with headway of 5.2 minutes are the optimal values.