5 ms·

Can't you count intersections instead?

• lucb1e 9y ago
  Far from every intersection has a traffic light?
• mcphage 9y ago
  You could, but the number is usually much higher, counting can get iffy with complicated intersection, you need to worry about both sides, etc. Lights are usually only at major streets, so unless you're at the final steps of your journey, you will probably only be turning at lights.