LCD Screens to Replace Bus Stops' Noisy Bells

Screens to replace bus stops' noisy bells
In Shanghai they're replacing bells that tell bus drivers when to leave> with LCD screens that show them. They're cutting back on the audial pollution perhaps? and as well as that..

Drivers must turn off their vehicles after waiting at a station for more than eight minutes and the third bus that pulls into a line at the station must also cut its engine.

http://www.chinadaily.com.cn/citylife/2007-05/14/content_871875.htm