Mass migration to Statin Island, Brooklyn, and Flushing.

I've been interested in cities with rail trails and the like. For example, San Antonio with the many mile extension of the Riverwalk along the San Antonio river and Atlanta with the Belt Line have created non motorized vehicle corridors through the respective cities which have spurred incredible amounts of mixed use development for miles on each side of the walking, peddle biking pathways. The most expensive real estate butting the pathway with bars, restaurants, yoga studies in the lower levels of the new buildings and with less and less expensive real estate pushing away from the sides of the path ways out words. Rather than having concentration of wealth at a circular center, the concentration is linear which has a side effect of having lower income house available in closer proximity to the wealthy areas.