Analysis and Optimization of Passenger Waiting Time: in Case Anbessa City Bus
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Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus. Addis Ababa University Addis Ababa Institute of Technology School of Mechanical and Industrial Engineering A thesis submitted to the School of Mechanical and Industrial Engineering Presented in Partial Fulfilment of the Requirements for the Degree of MSc. in Industrial Engineering specialization, Addis Ababa Institute of Technology Addis Ababa University, Ethiopia. By: Dobosha Abbelti Advisor: Eshetie Berhan (PhD) Co-advisor: Fitsum Getachew (PhD Candidate)) Addis Ababa, Ethiopia, 2018 Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus ADDIS ABABA UNIVERSITY SCHOOL OF GRADUATES STUDIES This is to certify that the thesis prepared by Dobosha Abbelti, entitled: “Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus”, and submitted in partial fulfilment of the requirements for the Degree of Masters of Science Industrial Engineering specialization complies with the regulations of the University and meets the accepted standards with respect to originality and quality. Signed by the Examining Committee: ______________ ______________ Internal Examiner Signature Date ______________ ______________ External Examiner Signature Date Eshetie Berhan (PhD) ______________ ______________ Advisor Signature Date Fitsum Getachew (PhD candidate) ______________ ______________ Co-Advisor Signature Date ______________ ______________ School Dean Signature Date Dobosha Abbelti, 2017/2018 i Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus DECLARATION I hereby declare that the work which is being presented in this thesis entitle “Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus,” is original work of my own, has not been presented for a degree of any other University and all the resources of materials used for the thesis have been duly acknowledged. Dobosha Abbelti ____________ ______________ By Signature Date This is to certify that the above declaration made by the candidate is correct to best of my knowledge Eshetie Berhan (PhD) ____________ ______________ Advisor Signature Date Fitsum Getachew (PhD candidate ______________ ______________ Co-Advisor Signature Date Dobosha Abbelti, 2017/2018 ii Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus ACKNOWLEDGEMENT First of all, I would like to thank God for giving me strength and direction to successfully complete this thesis work. Next, my grateful thank goes to my advisor Ir.Dr. Eshetie Birhan for his unreserved support and encouragement while doing the thesis. He helped me to acquire lots of knowledge and skills during my stay in Addis Ababa University. All I learnt from him and the thesis are value adding for my future carrier, and hence I would like to thank him for all his contributions. And I really thank my co-advisor Mr. Fitsum Getachew (PhD candidate in Industrial Engineering stream, Addis Ababa University) for his timely, encouraging, genuine, valuable and unreserved support to come up with this thesis. I learnt a lot from him. I thank him for his friendly approach and dedicated effort in order to accomplish the thesis in this attractive way. Also, I would like to extend my gratitude to all ACBSE workers for their time, efforts, voluntariness and cooperation throughout the thesis work by availing themselves for an interview and provided very valuable information about the service process. Furthermore, I would like to forward a word of appreciation to the senior depots manager of ACBSE Mr. Melaku Kasaye who shared ideas and suggest the intervention areas with respect to the research intention. Dobosha Abbelti, 2017/2018 iii Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus ABSTRACT In public transportation providing the fast transport service is the main concern to satisfy the passenger demand. The bus service accessibility in response to the passenger demand is deferent from route to route. This deference resulted in short passengers waiting time for high frequency and long passengers waiting time for the route of low bus service frequency. The long passengers waiting time is one of the measure of poor public transit service quality. In this thesis mathematical modeling was developed based on the dynamic passengers demand and bus service operational constraint to optimize passengers waiting time at bus terminals of Addis Ababa city in case of Anbessa bus transport using the data collected during literature review, interview, field study and secondary data collected from ACBSE. Mixed Integer Non-Linear Programing MINLP and Mixed Integer Linear Programing MILP model were developed for static and dynamic passenger demand. The dynamic passenger demand was solved as Mixed Integer Linear Programing MILP model by discretizing the bus planning horizon into small time (in minutes) to linearize and make the model tractable to solve it using software. LINGO software was used to solve the model. The result was evaluated with bus headway, bus frequency and bus capacity. The evaluation shows that the overall average bus departure time reduction is 39.62% and 37.74% for DAF or rigid Bishoftu bus and articulated bus respectively. The improved average frequency for DAF or rigid and articulate bus is 62.44% and 60.67% of actual bus frequency. The total average passengers waiting time for the DAF and Bishoftu bus was 8.03% more than the passengers waiting time for articulated bus. The overall average passengers waiting time reduction is 39.62% and 37.74% for DAF or rigid Bishoftu bus and articulated bus respectively, through the proposed mathematical optimization models. Key words: Bus, Passengers Waiting Time, Passengers’ Arrival Rate, Bus Frequency, Bus Headway Dobosha Abbelti, 2017/2018 iv Analysis and Optimization of Passenger Waiting Time: In Case Anbessa City Bus TABLE OF CONTENTS DECLARATION ................................................................................................................... II ACKNOWLEDGEMENT..................................................................................................... III ABSTRACT .........................................................................................................................IV LIST OF FIGURES ..............................................................................................................IX LIST OF TABLES ................................................................................................................. X ACRONYMS........................................................................................................................XI CHABTER ONE .................................................................................................................... 1 BACKGROUND AND JUSTIFICATION OF THE STUDY .................................................. 1 1.1. Introduction ..................................................................................................................... 1 1.2. Statement of the Problem ................................................................................................. 4 1.3. Objective ......................................................................................................................... 5 1.3.1. General objective ................................................................................................... 5 1.3.2. Specific objective .................................................................................................. 5 1.4. The research question ...................................................................................................... 5 1.5. Significance of the Study ................................................................................................. 5 1.6. Scope of the Study ........................................................................................................... 6 1.7. Limitation of the Study .................................................................................................... 6 1.8. Organization of the Study ................................................................................................ 7 CHAPTER TWO .................................................................................................................... 8 LITERATURE REVIEW ........................................................................................................ 8 2.1. Introduction ..................................................................................................................... 8 2.2. Public Transportation Service Quality ............................................................................ 10 2.2.1. Concepts of Service Quality................................................................................. 10 2.2.2. Definitions of Service Quality: ............................................................................ 10 2.2.3. Model of Service Quality Gaps: ........................................................................... 10 2.2.4. Public Transport Service Quality and Passengers Satisfaction .............................. 12 2.3. Passengers Waiting Time for Public Bus Transport Service ........................................... 14 2.3.1. Definition and Types of Passengers Waiting Time ............................................... 14 2.3.2. The Impact of Passengers Waiting Time .............................................................. 15 2.4. Factors Influence Passengers