It's the same in Beijing. /北京和这里一样。

A: I guess the best way to reduce traffic and pollution is to add more public transport facilities.

A: 我想减少交通堵塞和污染的最好办法是增加公共交通设施。

B: Well, it's certainly one way to help.

B: 哦，这当然是一个有助于解决问题的办法。

A: More buses and trains means less cars.

A: 更多的公共汽车和火车意味着私家车的减少。

B: Yes. It's the same in Beijing. Good transport systems help.

B: 是的。北京和这里一样。发达的交通系统有助于减少交通堵塞。

A: And fewer cars means less pollution and fewer traffic jams.

A: 私家车的减少意味着污染和交通堵塞的减少。

B: And more people cycling！  Lots of healthy exercise.

B: 还有骑自行车人的增加！很多有益健康的运动…

Notes:

Remember you can use comparative adjectives and opposites to compare things： more/fewer/ less, e.g. More buses and trains means fewer cars/ fewer cars means fewer traffic jams.

记住你怎样用形容词比较级和反义词来比较不同的事物，例如：more /更多的， fewer/ 更少的和less / 更少的, 例如： More buses and trains means fewer cars. /更多的公共汽车和火车意味着私家车的减少；  And fewer cars means fewer traffic jams. /私家车的减少意味着交通堵塞的减少