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    Sep 20 2013: Using GPS for mapping your problem areas can give you a visual idea of the spatial reality. You can map anything but that will only show you geographical distribution. Trough mapping you could find potential areas to, for example move the displaced population from a slum if you intend to build low cost housing close to areas that potentially could offer employment to these people, or close to schools if you determine that as a need for the people displaced....or in neighborhoods dominated by a certain ethnic group...every thing can be mapped and then queried in relation to something else. Geographic information system and global positioning systems are technical tools that can help but the real problem is to find the social solution and to create the intent to fix it (and of course find the financial means to do it).
    Here where I live in Central Florida the dominant course is urban sprawling; long distances, sparse public transportation and in spite of it they are about to build a rail system about 60 Miles long that is not connected to good public transportation at either end. The idea is to release pressure from the interstate. Were the people that approved it visionaries? I don't know. Maybe is good to put that in place while you have the means/power to do it and hopefully someone down the road will benefit. At least if more people would ride bikes they could park a bike at each end and commute by train like I've seen in Holland.

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