SignalGuru (App + OBDII interface)

[cfg83]

Hello -

Found this article :

SignalGuru app helps drivers avoid red lights

Researchers at the Massachusetts Institute of Technology have developed a system that uses dashboard-mounted smartphones to help drivers avoid red lights and reduce fuel consumption.
The app called SignalGuru predicts when a traffic signal is about to change, and the speed that should be driven when approaching an intersection in order to cruise through without stopping.
"The stop-and-go pattern that traffic signals create increases fuel consumption significantly," said Emmanouil Koukoumidis, the scientist behind the app.

...

http://www.youtube.com/watch?v=60nMKMvqP9Q

I say OBD II because I see this at 0:05 on the video :



CarloSW2

[Ampelmeter]

there's a newer application indicating optimal speed. search for ampelmeter.