When you tap and hold once on a road you can auto run on the road.
You will be 1.5 as fast on a road.
Construct Stone Roads
You find flat rocks in badlands and the desert.
You can place flat rocks with stakes and stones.
Hit the stakes 4 times with the stone.
Now you can place the flat rock to get the stone road.
If misplaced you can us a pickaxe on it. Swipe across the road.
The pickaxe will wear out over time but you will recover the flat rock.
Construct Brick Roads