我只能說你人都在國外了,眼界還如此的小
這裡有一個法案
http://www.nonoise.org/lawlib/propo...g/ny/ny3796.htm
你可以看一下為什麼
"Excessive noise from horn honking is a problem throughout New York City"

還有這一篇
http://www.nytimes.com/2011/05/12/n...-honk.html?_r=1

"In short, New York City wants to build a better beep — complete with an exterior light that turns on whenever a driver honks, so the police can better spot violators of oft-ignored honking laws."

不懂沒有關係,google一下好嗎?