Britain's major cities have fallen behind the best practice in transport of European and north American cities, and need to address this to compete in global markets. A number of potential mechanisms are available to UK cities, but only if central government is willing to transfer (limited)...

New technologies have enabled the production of traffic signals that have significant advantages over standard incandescent signals, including greater energy efficiency and lower maintenance costs. Before the new signals are installed in the field, it is important to assure that they as visible...