Since one freight train can carry as much as 280 lorries can, railways can help to limit the rise in roadcongestion.
由于一辆货物列车相当于280辆卡车的运载能力，那么铁路能够帮助改善公路拥堵不堪的现状。
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One estimate has passenger numbers doubling over the next 20 years, thanks to a mix of roadcongestion, the expansion of urban employment and green concerns.
Not only will you save money on fuel and the general upkeep of car but other knock on effects include the improved outdoor air quality and reduction on roadcongestion.