MichiganLeft is a plugin for quickly creating left-turn restrictions around Michigan left intersections. It takes a set of 4 or 5 ways to generate the restrictions.
2 divided highways crossing
The user will need to select 4 ways forming a square: each center part of each way for each direction. Four turn restrictions will be created.
Divide way crossing undivided way
The user will need to select 5 ways: the center part of the undivided way and the incoming and outgoing ways for each direction of the divided highway. Four turn restrictions will be created.