Cloverleaf 15 February 2017

Four symmetrical loops — it's impossible to miss a cloverleaf. If you can find one, that is.

Triangle 14 February 2017

Three levels of road, three roads connected, three ways to build it.

LILO 14 February 2017

A junction with no bridges and not much choice if you're on the side road.

Fork 19 January 2017

It might be the simplest type of interchange there is. One way on and one way off: a fork in the road.