Investigating the Impact of Speed Humps on Traffic Flow Parameters, Case Study: Isfahan Pooria hajiali pooriahajiali@gmail.com Date of Submission: 2015/9/7 Department of Traortation Isfahan University of Technology, Isfahan, 84156-83111, Iran Degree: M.Sc. Language: Farsi Supervisor: Meisam Akbarzadeh makbarzadeh@cc.iut.ac.ir Speed humps as traffic calming measures which significantly affect traffic flow. Recent studies mostly investigated traffic flow parameters such as speed, density, traffic volume, capacity and safety parameters. In this research, impact of speed hump on speed of different kinds of vehicles and also passenger-car equivalent impact for heavy vehicle is studied. Emam Khomeini Avenue as a major arterial in Isfahan was selected as its traffic stream consists of almost all types of vehicles. Data was collected by videotaping of the traffic stream. Speed of four Key Words Speed Profile, Impact Area, Equivalent Density, Average Headway, Passenger-Car Equivalent Impact
