?Idea? How do you easily represent possible barriers in a neighbourhood. Assuming that in an urban area road speed equates to how busy the road is likely to be, and the busier the road the less likely that residents either side interact? Graphically, the thicker the line (roads - 70mph = 70pt, 30mph=30pt etc) the harder it is for the blocks (neighbourhoods) to mix. Therefore a design needs to try and make these lines thinner to increase social interaction in an area???
