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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 10: Transport, Regional and Urban Dynamics

SOE 10.3: Talk

Wednesday, March 24, 2021, 13:40–14:00, SOEa

Towards Optimal Bikeability of Urban Mobility Networks — •Christoph Steinacker, David-Maximilian Storch, Marc Timme, and Malte Schröder — Chair for Network Dynamics, Institute for Theoretical Physics and Center for Advancing Electronics Dresden (cfaed), TU Dresden

Individual transport in cities is most commonly enabled by private cars, an unsustainable status quo both ecologically and socially. On typical urban distance scales, bicycling constitutes a more sustainable alternative that is broadly accessible. Yet, insufficient and poorly designed bike path networks often hinder more prevalent bike use. Here, we propose an optimisation scheme for bike path networks that enables smooth and safe bicycle travel in cities. Evaluating bike-sharing data on millions of city trips, we estimate bike travel demand and find greatly bike-friendly network topologies. Interestingly, a reverse percolation process that starts from a complete bike path network covering all streets and systematically lowers the number of bike paths by eliminating least used bicycle paths yields topologies much more suitable than a forward process with optimised iterative addition of paths. Even just a small number of bike paths, if chosen wisely, may result in a bike-friendly network. These results may support the planning of sustainable mobility networks, strongly improving urban bikeability.

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