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People with poor eyesight or severe memory problems could soon be a lot more
streetwise, thanks to the Auditory Location Finder (ALF) being developed by a
team at Napier University’s Transport Research Institute in Edinburgh. ALF uses
short-range radio beacons to put users in contact with a computer centre, which
sends them a voice message telling them where they are. The information includes
street names, junctions, pedestrian crossings and routes to the nearest bus
stop. ALF will also recall the last known whereabouts of somebody who may have
gone missing.