The Swedish parliament has decided that the public transport should be available to disabled people by 2010. For the visually impaired, one major barrier to an accessible public transport system, is the fact that a majority of the information regarding public transport is visual. The visually impaired is therefore by default less mobile and often avoiding travel with public transport by themselves. TFK started in 2001 a project with the long-term aim to develop a guidance system, which uses spatial information and real-time public transport information to enlarge the possibilities for the visually impaired to travel alone.

The company Voxit together with Cartesia and TFK has developed a prototype of a guidance system. The prototype consists of standard components, which include a small wearable computer, GPS, DGPS, digital compass, GIS and program for speech recognition and speech synthesis. The accuracy of the positioning in the prototype is ±0.5 meters. The GIS-software handles the user's real-time movements and provides information to the system concerning which way the user should go. The prototype also gives information regarding the surroundings, hazards and obstacles. The system also includes simulated real time public transport information. As a result, the user can choose a departure and then be guided to the nearest bus stop.