The road near Nellis heads NORTH, as does the road to the northwest of the map, near the entrance to the long path to Jacobstown..
To be fair, it leads northwest. Which would take you Californi way. Though the area does allude to Honest Hearts, there is graffiti talking about New Canaan and Joshua Graham. Also if by road you mean highway, then yeah that goes north. But unless they want to make pretty dramatic change's to the overpass then that's out as well.
