The winners of the prizes in the world-wide competition for urban innovation launched by Le Monde, act as a yardstick on every continent. In Nigeria, the start-up WeCyclers (First Prize) has invented an on-demand waste collection using confirmation of transactions by SMS and sophisticated bicycles. In Singapore, the city has designed and developed a revolutionary system for public transport based on driverless, electric cars. At Pittsburgh in the United States the Robotics Institute at the Carnegie Mellon University has perfected a high-performance system crammed full of artificial intelligence devices for the flow control of urban traffic (Surtrac, Mobility Prize).