Bicycle-friendly communities will make people feel safer and more comfortable while riding their bikes for purposes of both fitness and transportation.

他说自行车环保社区会使人们在骑车时觉得更安全、更舒适。 这对健身和交通都有利。

youdao

Current trends indicate that transportation is becoming cleaner, faster and safer. Public transportation is already well developed in most urban areas of China.

当前的趋势表明，交通在变得更加干净、快捷和安全。公共交通在中国大部分城市地区已经很发达。

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Today most people would rather drive their car to the office in the city than take public transportation, even though the latter may be cheaper, more convenient and safer.

今天人们大多驾车到城市里上班，而不是乘坐公众交通工具，虽然后者可能更便宜、更便利、更安全。

youdao

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

It was an experiment that tested the limits of human endurance, with the aim of making transportation safer.

BBC: Before Baumgartner: Five daredevils who helped science

There are no guarantees, but air travel is still much safer than other means of transportation.

CNN: How do you know your airline is safe?

Pipelines transport is far, far safer than any other form of transportation.

FORBES: Pipeline Infrastructure: Rhetoric v. Reality