The lidar shows me:

- if a car is behind me

- how many cars( I think up to 8) are behind me

- what speed they are coming up on me by way of animation

To answer your question about what to do, mostly yes, yield the road if I'm on a country road and get over to the shoulder if there is a good paved one.

It's a valid question if you've never ridden on a country road with cars. You want all the notification you can get if someone is coming up behind you so you can plan what to do