Effect of sidewalk vendors on pedestrian movement characteristics: A microscopic simulation study of Addis Ababa, Ethiopia

《Effect of sidewalk vendors on pedestrian movement characteristics: A microscopic simulation study of Addis Ababa, Ethiopia》

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关键字: Sidewalk vendor;Social-force model;Pedestrian density;Street design and management

作者单位: Hasselt University, Department of Transportation Science, Diepenbeek 3590, Belgium;Transportation research institute (IMOB), Hasselt University, Diepenbeek 3590, Belgium;Hasselt University, Department of Transportation Science, Diepenbeek 3590, Belgium;Transportation research institute (IMOB), Hasselt University, Diepenbeek 3590, Belgium

摘要: Street vending is an essential part of the urban informal economy in developing countries. Related to rapid urbanization and socio-economic challenges, studies have proposed comprehensive street design and management that accommodate sidewalk vendors efficiently. To this end, this paper evaluated the effect of three alternatives to integrate sidewalk vendors on average pedestrian density. A social-force based pedestrian microsimulation model (PTV-Viswalk-11) was calibrated using a macroscopic approach. A calibrated model was then used to evaluate the effect of a kiosk, a sidewalk vendor in frontage, and a sidewalk vendor in furniture zones on pedestrian movement under different scenarios. Results indicated that the average pedestrian density varied with the location and width of the vending stall, width of the walkway, pedestrian flow and the presence of a customer interacting with a vendor. The paper concludes with recommendations for planners and local authorities.