yes we can start form the bottom up. first of all just anouncing the nearby area and letting the user know which bus stop or railway station is near by is a good starting point. finding addressess and locations will be drastically easy from a blind person's point of view. then the bus numbre and path problem. then we can start working on serious directional research, because there are two major points all of you can gather form the discussion so far, firstly to identify what is best suited to make a blind person understand things and how we can adopt the technology to do so. Krishnakant.
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