Econs don’t always drive the speed limit. They know that sometimes driving the limit (or over it) can get you stuck behind slower cars or always stopping and restarting at red lights. Gridlock guru Tom Vanderbilt recently came across something called the TrafficFlow Manager that tries to help Humans drive more like Econs.
(It is) a driver alert display that works with traffic signal timing to alleviate traffic congestion. When mounted along a route with timed traffic signals, the display informs drivers that the lights are synchronized and lets them know the proper speed they must maintain in order to avoid having to stop for a red light.
Traffic engineers already try to set lights to improve traffic flow patterns. This “smart” device links the lights to the signs. The sign’s manufacturer says this kind of synchronization reduces delays and saves fuel.