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Trailblazers - A Community Driven Navigation System For Mobility Impaired People 1

In this paper we propose a navigation system running on mobile devices for mobility impaired people who are bound to wheelchairs. The environment in many countries throughout the world is hardly suitable for wheelchairs. With the Trailblazers System people are able to find ways around obstacles like steps and cobbled streets. Common navigation systems include data for roads only and are therefore best suitable for car navigation. Trailblazers has more fine grained knowledge and includes also barrier free ways like e.g. footways and bicycle lanes. As a result Trailblazers can provide a barrier free movement service in form of a fine grained navigation system for people in wheelchairs. The main problem is the acquisition of the necessary map data for the above mentioned ways. To overcome this challenge we propose a community driven system in which the users of the system detect barrier free ways in their environments and provide these ways for the community. The system is able to detect barrier free ways based on the positions of the users. In this way the existing street maps are extended. Additionally Trailblazers offers a way to enter detailed information about barriers, encountered during a trip, into the system in form of a point of interest. The system further tries to detect these points of interests in a semi automatic way to reduce the amount of work to be done