This could prove to be an environmental boon as well, saving fuel, reducing traffic jams, decreasing air pollution, and serving as an alternative to highway expansion.

这对环保也会很有利，能节省燃油，减轻交通阻塞，减少空气污染，还可用作公路扩建的替代办法。

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MRT has been successful in reducing traffic jams during rush hour in Taipei.

捷运已经成功减少台北尖峰时间的交通阻塞。

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ITS is taking a more and more important role in reducing traffic congestion, pollution and other detrimental effects of vehicles.

智能交通在缓解交通拥堵，减少空气污染以及减少其他机动车负面影响等方面发挥着越来越大的作用。

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The American Heart Association recommends reducing time spent in heavy traffic or jogging during rush hour, or near busy roadways and better treatment for cardiovascular risk factors.

VOA: standard.2010.08.04

Its "Promoting Sustainable Transport Solutions for East African Cities" project aims to reduce growth in private motor vehicles, thus reducing traffic congestion and greenhouse-gas emissions.

CNN: The daily grind of commuting in Africa's economic hubs

The majority of the pollution is caused by vehicles on the road and experts say reducing traffic in the cities is the best way of improving air quality.

BBC: Air pollution fears in Leicester and Nottingham

We tend to think of them as alternatives to traditional car rental, but companies like Getaround see themselves as social enterprises designed to serve the greater good by reducing traffic and air pollution.

FORBES: Put the Social Before the Enterprise (Dr. Martin Luther King, Jr. Would)