I thought i might try a very quick network analysis of central London using the new City Engine Graph analysis tool and the OS road network. In City Engine, Graph networks can be analyzed by computing global integration, local integration and inbetween centrality. Global integration refers to the sum of shortests paths between each road segment and all other selected segments. In short, this tool calculates all shortest paths between street segments, while the cost fuction takes into account the angles between segments. In this case i' m using automated settings, but even so, the graph tool identifies key features of London's street network such as the high values of Global integration on Oxford Street, which are highlighted red.