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Optimization of a transportation system with both shared and non-shared modes of mobility


R. Kreis

Semester Thesis, HS13 (10292)

Public Bicycle Sharing (PBS) schemes have been implemented in many cities all over the world in recent years. The typical usage pattern of such schemes will let some stations run completely empty or full. In previous projects, control inputs to regulate the fill level of bike rental stations were investigated. This project looks at the utility of such a PBS scheme. For that, the PBS scheme is considered being part of the whole transportation system of a city. Each traveler can complete his journey by either using a bike from a PBS scheme or by using another, unconstrained mode of transport. A multi-commodity flow formulation was found which allows the system to be optimized. The result of such an optimization is a detailed travel pattern, which clearly indicates heavily used edges. Analyzing the dual variables of the problem also reveals which stations should be increased in size. The optimization algorithm was run with input data from an existing PBS scheme in London. With some adaptations to the optimization algorithm, the service level can be computed. This firstly allows a comparison to previous projects. Secondly, it shows the maximum service level which can be achieved for a given network and demand. iii


Type of Publication:

(13)Semester/Bachelor Thesis

J. Warrington

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% Autogenerated BibTeX entry
@PhdThesis { Xxx:2014:IFA_4675
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