When we walk on the road

     When we walk on the road,the loudly and  noisy sound from cars always makes us very uncomfortable.I'm afraid that if this phenomenon continue to deteriorate,what our life will be?
    Surely enough,those cars indeed bring us many convinient ,such as time saving for the office worker、a good style of  travelling and so on. I also choose cars to someplaces when it's so far away from my home. But I have to say that the growing cars have brought lots of negative effects.The automobile noise will do harm to our health.That's a serious problem we have to face  and solve.
     I think firstly we must build more underground passage and pedestrian street ，that can apart us from the cars's noises. Secondly we should limit the car purchases.