Of course if your at a light that won't change because the sensor won't pick you up then you have to go, you can't just sit there forever. Use some common sense, but that doesn't mean you slow down to 15mph look and blow any light and stop sign you see either...especially in the city, country roads where you can see for miles in any direction is a different story. Most streets with the sensor activated lights have walk buttons you could push to change the light; I do that a lot, traffic is heavy so instead of waiting just push the walk button.