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Institute. While alternative ways of getting around are available, most people still choose their cars because they are looking for convenience, fort and privacy.2 The most promising technique for reducing city traffic is called congestion pricing,whereby cities charge a toll to enter certain parts of town at certain times of day.In theory, if the toll is high enough,some drivers will cancel{heir trips or go by bus or train.And in practice it seems to work:Singapore,London and Stockholm have reduced traffic and pollution in city centres thanks to congestion pricing.3 Another way to reduce rush—h