Overworld Highways

The Overworld Highways are similar to the nether highway but except its not at the world height limit, where the highway ends are not confirmed since they are less travelled than the nether highways which gives less information about them. Even the creators are still unknown to the community.

Highways at Spawn
Barely recognizable, highways are blocked and multiple griefs making it nearly impossible for a ungeared player to even know where the highway are located.

Highway Benefits
The only benefits is that not much hunter are going to hunt you down. Though much less efficient than the nether highway, if you need to travel far away from spawn, nether highways are suggested while travelling.

Highway Creation
Around October, I still don't understand that why people construct those highways when the nether highways are just a lot more efficient.