FULL TIMER next to the traffic lights.
A small city called São Caetano Do Sul in Brazil simply placed A TIMER next to the solid green / yellow / red lights. Full blown 90 seconds red lights, Full 85 greens, Full 5 seconds for yellows. BIG DIGITAL DISPLAYS counting down, now replaced by LEDs.
You know exactly what is going to happen, and when it is going to happen. Not a single person feels the need to gun that yellow. It gives you a lot of confidence.
The city has, coincidentally, the largest GM plant in Brazil, and the most important Technical School of Engineering, 2 blocks down from where these lights operate. I went to that school for five years, not a single accident on those crossings after the timers were put in place.
The city has the 3rd Quality of Life in the Country, and the 5th GDP per capita. Streets are impeccably clean, it doesn't feel like Brazil there.
Biting the hand that feeds IT
