→United States Numbered Highways 30px: Short form for US highways; US- has been agreed on the standard at meetup, 2 consec. years.
The naming of highways is, of course, somewhat more complex than that of normal roads. Therefore, conventions must be followed to assure consistency throughout the map.
Certain formatting guidelines must be followed to ensure that highway shields are shown in the Live Map and in the client. Note that currently shield generation is not currently operating at 100%, so some areas do not have the shields on all roads.
; US Highways
: Federal highways should be denoted as follows. Note that the trailing N, S, E, W cardinal direction indicator is used for numbered highways and interstates which are split into two 1-way segments, [[Best_map_editing_practice#When_.28Not.29_to_Split_a_Two-Way_Road|per the guidelines]].
: Also refer to the [[#Concurrent_names|concurrent names]] section when the highway passes through a city or town that also has a local name for the road.