Walking is part of almost every journey, no matter which mode of transport is used. This applies not only to public transport journeys but also to car journeys, where it might be necessary to walk from the parking place to the destination.
In the past, way finding for pedestrians has only been performed based on standard maps intended for vehicles. In these maps, footpaths as well as cycle paths are only partially integrated (e.g. as attributes of a road).
New developments in street network datasets such as OpenStreetMap (OSM), NAVTEQ Discover Cities, or the Austrian Graph Integration Platform (GIP) include footpaths and cycle paths as autonomous path network instead of being just additional attributes of the road network. This opens new opportunities for dedicated routing for pedestrians, whose needs are still widely unattended.
In particular, the problems of missing information about the quality of pedestrian ways as well as the issue of road crossings and inappropriate navigation instructions remain unsolved. Within the PERRON project (Enhanced Pedestrian Routing and Navigation as well as Walkability Assessment of Pedestrian Ways) the quality of pedestrian ways and road crossing behavior will explicitly be included in algorithms to improve pedestrian Navigation.