5 ms·

What are "green arrows"? And why do they significantly improve throughput?

• baybal2 10y ago
  Green arrow is an additional traffic light signal that lets right turn on red. It is usually computer controlled in big Russian cities
  • maxerickson 10y ago
    Being able to turn right on a red is the default in the US. (many intersections are posted as no right turn on red though)
    • jtuente 10y ago
      In the majority of intersections that I've driven (in the midwest) with no right turn on red, there is an obvious obstruction to see fast moving cars passing through the intersection. Also, in some areas with many one-way streets it is legal to make a left-turn on red from one one-way street to another.
    • baybal2 10y ago
      The problem is this slows the traffic in urban areas. A simple radar controlled signal solves this