In addition, they agree that the solution to the traffic is of utmost importance in a big city, because noise and pollution from car exhaust pipes wreck the nerves of city dwellers.

wreck 是动词，意思是"破坏、毁坏"，通常指对物体或状况造成严重的损害或破坏。这个词常用于描述交通事故或船只失事等严重破坏情况，在这里比喻性地描述噪音和污染对人们神经系统的负面影响。