The problems of scarcity and excess are in evidence on the city-state’s roads too. Singaporeans, who are among the world's richest people, love to drive, but space for roads is severely limited. When in the early 1970s the central area became too congested, the government introduced the world's first manual urban road-pricing system. In 1998 it became the first to be automated. “Singapore proves that necessity is the mother of invention,” says Teo Lay Lim, who heads the local office of Accenture.
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