I looked at the city on Google maps; the street grid is prominent but I didn't feel like I good a good idea of how the city is laid out into sectors as the article mentioned. One thing I did notice were some blocks of the city that did not conform to the overall grid (there's a prominent one in the southwest of the central city). Does anyone know if these were instances of post-Corbusier demolition and rebuilding, or were these part of the original plan? It would be interesting to know how much the city has changed sense it was designed and built (in the 60s I guess?).