Footpath Routing
Footpath routing is an integral part of an intermodal door-to-door journey planner, allowing a search to factor in the right connection times from addresses to stops.
Footpath routing is determined on the basis of GIS-data for navigation (e.g. NAVTEQ or PTV). But because this data is usually collected for vehicle navigation systems, it may be necessary to add missing footpaths like an underpass in a station. This data can be edited using DIVAGeo.
Footpaths are normally estimated with a set speed. However, if a digital elevation model is available, the IJP-system can factor in footpaths with climbs so that they can be avoided if desired.
Similarly, it may make sense to use different stops for journey start and destination if both footpaths allow passengers to avoid an uphill walk and stay on flat land.
A footpath that has been routed can be downloaded and printed as a map in PDF-form. In addition to being displayed on a map, a PDF file is created with directions in text form.
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A digital elevation model is included in the GIS-data and the elevation profile of the footpath can be displayed:
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Footpaths are important in that they connect the system of roads to the public transport network. But they also help passengers make transfers and get to their next mode of transport. Footpath routing helps guide users through more complex stops and stations.
To this end, DIVAGeo was enhanced to include the floor plans of buildings. Now indoor routing is possible all the way to the underground platform. Special types of segments like escalators, ramps or elevators allow for an accurate display of stop/station accessibility.
The map display of buildings is quite a challenge. Controls and views alternate for orientation purposes.
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