Braille maps are to be introduced in Princesshay in Exeter city centre following successful trials.The maps have been designed to help the blind and partially-sighted navigate the four sections of the shopping centre. They have been tested since September by two local volunteers and the finalised versions are now available from the Exeter Tourist Information Centre. The idea was first proposed by information centre workers. A spokesman for the project said: "There was quite a demand for it as there are no other Braille facilities for this area. It is a first for Exeter." An audio version of the Explore Guide to Princesshay is to be launched at the TIC at the end of the month. "We are really pleased that we have been able to provide high-quality Braille information on Princesshay," said Sally Henley, Princesshay manager.