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Complexity of routes in multi-modal wayfinding

In this paper we propose a model for assessing the complexity of routes in multi-modal public transportation. Complexity can be of different types: physical, personal, and temporal. We deal only with the physical complexity of routes in this paper. By this we mean the complexity of spatial layout and the degree of visual access of nodes and links in the public transportation system. We make a distinction between path complexity and route complexity. Each is composed of the complexity of nodes and links along the path/route. Those aspects have to be considered at two levels of detail, i.e. at the level of the network and at the level of the individual node. We show and discuss for a specific example the different measures we derive conceptually.