Originally Posted By: oilyriser
Yes, throw in the occasional short yellow to throw people off. And then start leaving it red for longer and longer times until people get frustrated and cross the line.
Easy enough to do. Just "forget" to fix the loop detector/sensor (which tells the signal controller there's a vehicle waiting) for several weeks after it "breaks".
This is the same effect as you get when someone doesn't pull up far enough to trip the sensor.