Clark sees traffic congestion as one of the most serious problems of our time - for a variety of reasons.

VOA: standard.2010.07.26

because if you take it during the day, there'll be a lot of traffic and congestion.

因为如果你白天坐，道路会拥堵。

伦敦的夜生活 - SpeakingMax英语口语达人

Bangkok residents had been warned to remain at home to avoid being caught up in the traffic congestion.

VOA: standard.2010.03.20

To ease traffic congestion,Clark says, Houston transportation officials created special safety programs to reduce the number of accidents, which tie up traffic.

VOA: standard.2010.07.26

He says fighting traffic congestion, he adds,is an on-going challenge because this urban area continues to attract more jobs and more people.

VOA: standard.2010.07.26

"I'm pleased that we're making some progress towards mitigating the levels of traffic congestion in our region."

VOA: standard.2010.07.26

The long term solution to the traffic congestion problem, Clark says, is not building more roads, but changing the way we design our cities and how we live our lives.

VOA: standard.2010.07.26

Trains are fuel efficient, they relieve traffic and airport congestion and they also reduce our dependence on foreign oil, making passenger trains the safer,cleaner, greener transportation option."

VOA: standard.2010.02.15

IBM,which has developed new technology for predicting traffic flow, has identified the cities with the worst commutes in the world and those that are successfully easing the congestion.

VOA: standard.2010.07.26