Alemayehu, Ambo (PhD)Misrak, Hiruy2021-07-062023-11-112021-07-062023-11-112021-03http://etd.aau.edu.et/handle/12345678/27088This thesis aims at evaluating the Addis Ababa city roads transportation system efficiency which is the relationship between the input of the transportation system and its capability of satisfying the transportation demand in the system. Then by addressing the efficiency counter backs of the policies related to the inefficiency indicators are assessed following by addressing an optional policy approach that has been practiced worldwide which resulted in a positive impact on road and transportation systems. Rapid urbanization in Addis Ababa poses challenges of traffic congestion, accidents, transportation delays & emission. Traffic congestion in the city leads to pollution, wasted time& excessive fuel consumption. Currently, the roads in Addis Ababa are packed, yet the demand for the transportation sector is highly increasing. Unplanned and uncontrolled development has resulted in an urban sprawl, pushing out the boundaries of the cities and making demand for transportation more complex. As a result travel distances become relatively longer, travel times and costs have increased drastically. This thesis used exploratory and observational research design which is used to explore & observe what is happening in a given context since the main objective of the research is to explore access and evaluate road transportation system regulation in Addis Ababa. The study used data on road traffic accidents and vehicle data for the period 2009/2010-2018/2019 G.C and the data were obtained from Addis Ababa Police Commission and the Addis Ababa Transportation Authority. The results of the analysis in this thesis showed that the road transportation demand in Addis Ababa is highly increasing and at the same time the number of the vehicle in Addis Ababa is also increasing at a higher rate in the last decade which is creating a saturation number of vehicles in the streets of Addis Ababa, therefor a series measure that gives long term demand management must be done from the core: otherwise, the situation will worsen and mobility will be adversely affected causing significant economic loss. This research examines policy options to make the Addis Ababa road transportation system sustainable, effective and efficient. Apart from the most important capacity related solutions such as; adequate infrastructure, parking facility, vehicle population, etc., pertinent policymakers have to consider changing the transportation demand and individual behavior to create a sustainable urban transportation system. In Addis Ababa city it is found that the vehicle number is increasing in number tremendously during the last 10 years. The total number of vehicles for those years has increased from 187,538 to 450,700. Commercial vehicles cover the larger amount which is 43.2% of the total vehicle population that is only 6.34% larger than the privately owned vehicles. The number of crash in the city has been increasing drastically which is the privately owned vehicles covers the larger amount at which it covers 85% of the total accident that increased the vulnerability of pedestrians which resulted during the last 10 years the peoples involved in the traffic accident covers 78.42% of pedestrians, 16.2% passengers and 5.3% drivers. To cope with the problems encountered in Addis Ababa city road transportation system this research recommends a regulation based solutions for the problems of which applying a regulation for demand management is the first outstanding solution that gives a long term solution and approaches that have given a pleasing result elsewhere but not tested in Ethiopia are assessed and explained in detail on this research which can be exercised through, congestion charging, fuel taxation approach, vision zero approach, lifelong driving lesson, and excise tax.en-USRoad Transportation RegulationsEvaluationAssessmentAddis Ababa cityThesis