Given the inconvenience of traffic lights, the old “flip the signals” trick has been around for decades. A simple flick of one’s focus – channeling a surge of Entropy 2, Forces 2, or both, possibly with Time 1 in order to spot the best timing for that surge – turns the signal in the mage’s favor. This doesn’t mean, of course, that the other cars will react to the new signal quite so easily. The mage who uses this feat risks causing an accident as the other drivers respond to the signal-change… possibly by barreling through the light at a deeply inconvenient time.

Given the number of people who do the “talk to or yell at the traffic light” thing, this feat is coincidental unless the mage is ridiculously obvious about what he’s doing.