Examples
In the Australian state of Victoria, green and yellow are replaced by white, and there may be additional modes such as 'Centre lane turns only' at particular times of the day. On Jarvis Street inToll plazas in the United States
In the United States, lane control signals are used on many toll plazas to indicate the open/closed status of toll lanes. Many older toll plazas use conventional circular red and green indications to indicate the open and closed status of toll lanes; however, the use of circular red and green signals for this purpose is now non-compliant in the 2009