I think what is urgent now is to solve the transportation problem.

我认为现在当务之急是解决交通问题。

youdao

It was thought that a canal seemed the best solution to the transportation problem.

人们认为，运河似乎是解决运输问题的最佳办法。

youdao

Now then, along with the fast development of the economy, the transportation problem of Xi 'an is increasingly serious.

而今，随着经济的迅猛发展，西安城市交通问题日益严重。

youdao

Ray LaHood, Secretary of the U.S.Department of Transportation, says distracted driving is a critical problem.

VOA: standard.2010.06.24

The Reason Foundation for example, recently released a report saying that hydrogen cars are no panacea for the transportation problem.

CNN: All About: Greener driving

"I think that the answer to reducing our petroleum-import problem and reducing the carbon emissions from transportation is really threefold, " he said.

CNN: Lab makes renewable diesel fuel from E. coli poop

Mr. HINCHMAN: We've chosen the stricter California program because it's the only policy option available to us that we can use to reduce pollution emissions from the transportation sector, which is the most polluting and fastest-growing problem in terms of air quality in the Northeast.

NPR: States Push Automakers on Fuel Efficiency