The rubberised bitumen itself is flexible and slightly springy, which enables it to absorb more unwanted sonic energy.

而参入了橡胶的沥青本身也具有柔韧性和轻微的弹性，这可以使它吸收更多讨厌的音波能量。

Their popularity could spread further, since it is now possible to make rubberised asphalt less expensively than the traditional sort.

由于现在可以把橡胶柏油路的成本控制得比传统路面还低，所以这种趋势会越来越流行。