[Matra et Alpine]

Not named after the flower but after the "Tulip Rally" in Holland which pioneered them.

They are VERY simple.

They are pictures of each junction as seen from overhead.

The ball is the direction from which the rally route comes and the arrow is the direction to which the rally route goes

As with all directions, a navigator has to come up with a means of communicating these to the driver. We'll cover that later. First I'm focussing on the skill to PLOT the route, we'll get over the hurdle of communicating it to a lesser life-form later on

Couple of examples below.
Can you tell which one is Turn Right into side road and which is turn left at Y ? (rhetorical Q)