You must live in the south. And somewhere flat.
No, we live just a few miles south of Manitoba and our road is gravel for the first 3 miles. In the winter our roads heave due to frost.
Next time you are standing on a roadside, watch the cars go by. In order to get energy off of bumps, the wheels need to go up and down to get the suspension to go up and down which creates the motion to generate electricity.
As you are watching the cars wheels, they practically do not go up and down at all.
It’s just a plain silly leftist idea from the same school global warming is taught. It’s less efficient than wind turbines.