Building new roads increases traffic and the converse is equally true: reducing the number and size of roads means less traffic.

修筑新的道路可增加交通流量，反过来也是同样的道理：减少道路的数量和规模就意味着减少交通流量。

《牛津词典》

youdao

As users of London's orbital M25 motorway will know, new roads rapidly fill with more traffic.

走过伦敦外环 M25 高速公路的人将会知道，更多的车辆很快就会把新的道路挤满。

youdao

It paid for new roads,bridges, and government buildings -- for almost anything the congressmen wanted.

VOA: special.2010.05.27

So this city is not a city in New England, it's a city in the Midwest, where everything's flat and the roads just go completely straight.

所以这不是在新英格兰的城市,它是美国中西部的城市,那里都是平坦而笔直的路

耶鲁公开课 - 博弈论课程节选

Paramilitary troops have been activated to bolster the city's police force and new roadblocks are in place to shut down major roads.

VOA: standard.2009.03.14

No-one expects motorists to pay more for new roads or air passengers to pay for new runways.

BBC: Network Rail unveils ?37.5bn investment plan

The money will go towards new roads, railways, power stations and other large-scale projects.

BBC: Business

Certainly, China and other competitors are rapidly developing new roads, airports and structure for basic utilities.

FORBES: Getting Innovative with Infrastructure