Some major airports already have Follow the Greens. Traditionally every taxiway and every possible path on each intersection will be painted with a yellow line

Some major airports already have Follow the Greens. Traditionally every taxiway and every possible path on each intersection will be painted with a yellow line and illuminated with yellow lights. Follow the Greens replaces that with green lights which are controllable at a very high resolution. The result is that every plane will have a path of green lights to follow, greatly reducing everyone's workload.