3 ms·
They're also used to slow traffic. Because you need to check before entering, all traffic slows, even on unevenly weighted traffic. So still useful. Although t
by monk_e_boy 6y ago
They're also used to slow traffic. Because you need to check before entering, all traffic slows, even on unevenly weighted traffic. So still useful.
Although the UK seems to be going towards more lights and fewer larger roundabouts.