14 lights (I didn't realize it was that many!) in 10 miles. On average, maybe 5 will be red. I have the timing of some of the lights figured out so I know how fast I need to go to maximize the greens, but it partly depends on when I get to the first in a series of lights. Out in the 'burbs near my house, the lights are at least partially triggered by sensors, so there's no way to time them.