交通事故减少了 meaning in Chinese

there has been a decrease in traffic accidents

There has been a decrease in traffic accidents .
交通事故减少了。
Chengdu , capital city of southwest china ' s sichuan province , pioneered china ' s first " car free day " on october 14 , 2000 . it resulted in a 37 . 5 percent drop in traffic accidents and significant noise reduction
中国西南部四川省省会城市成都，在2000年10月14日，率先发起了中国第一个“无车日” 。该次活动使交通事故减少了37 . 5 % ，嗓声也大幅减少。
Chengdu , capital city of southwest china ' s sichuan province , pioneered china ' s first " car free day " on october 14 , 2000 . it resulted in a 37 . 5 percent drop in traffic accidents and significant noise reduction
中国西南省份四川的省会成都是中国城市“无车日”做法的先行者，它在2000年10月14日试行了“无车日”的做法。结果交通事故减少了37 . 5 % ,噪音也大大减小。