Nether Highways

The four main nether highways are the most frequently used roads by 9b6t players. They start at nether spawn and extend in all four cardinal directions and are named after the axis of the Minecraft coordinate system they follow.

X+ Highway

 * 4x3 Tunnel Length: 5k Overworld
 * 1x2 Tunnel Length: 30k Overworld

X- Highway

 * 4x3 Tunnel Length: ~10k Overworld?
 * 1x2 Tunnel Length: 2.4 mil Overworld

Z+ Highway
The 4x3 highway was extended from 800 blocks to 125 thousand blocks by members of Team Lead The Way.
 * 4x3 Tunnel Length: 125k Overworld
 * 1x2 Tunnel Length: possibly 3.5 mil Overworld

Z- Highway

 * 4x3 Tunnel Length: 44k Overworld
 * 1x2 Tunnel Length: ~100k Overworld?