Urban sustainability

Think about whether the following are low or high tech, costly to install or manage, and more or less effective: 1) Traffic segregation - Traffic segregation separates motorised and non-motorised systems, and differentiates through routes from local routes; 2) Traffic calming - Road humps, chicanes, and slow speed restrictions may combine to deter through travellers and hence total flows may decrease; 3) Traffic flows - Traffic flows are usually made more efficient by careful use of traffic signals; 4) Bus Priority Systems - Bus Priority Systems promote reduction in the use of private cars, greater speeds, less congestion and less emissions; 5) Parking initiatives - Sensitive pricing and availability operated via permits is widely used in industrialised nations; 6) Restrictions on vehicle use - Using an odd/even number plate method, key advantages are less public opposition and easier implementation; 7) Ring roads - Ring roads are linked to traffic reduction and management, especially of through traffic; 8) New and upgraded roads - Suterranean mototrways, expanded lanes and other advances; 9) Pedestrianisation - Pedestrianisation of city centres began in the 1960s in Europe, and is now seen across the world; 10) Alternative transport systems - Underground, metro, light rail, trams and so on; 11) Advanced traffic information - Traffic information helps travellers choose routes and types of travel; 12) Congestion charging - As on tiral in London and Singapore.