In major cities bus routes often su er from buses not maintaining their initial headway, resulting in the buses arriving irregularly at the bus stops - often in pairs followed by a period without any bus arrivals. This pheno- menon is called "bus bunching"and has been described and studied since the 1960's. A bus route will be constantly unstable due to its nature with varying passenger in ux, passenger demand and various other parameters. This paper shows how the di erent mechanics of a bus system a ects each other mathematically. Through mathematics and simulation it is proven that a bus route will become more and more unstable the longer it is allowed to go wit- hout exterior interference. This paper shows how bus bunching is primarily connected to dwell time. In order to minimize the risk of bus bunching, the parameters dictating the dwell time need to be reduced. Where this paper has a mathematical and theoretical approach - rather than a practi- cal one, it shows how certain parameters like loading- and unloading time as well as bus arrival frequency are essential to keep as low as possible to prevent bus bunching.
|Uddannelser||Basis - Naturvidenskabelig Bacheloruddannelse, (Bachelor uddannelse) Basis|
|Udgivelsesdato||19 jun. 2015|
|Vejledere||Johnny T. Ottesen|