When I first started, the Wiki was somewhat in disarray and the ramp naming had been going through a lot of debate. At that time as I was coming up to speed I found quite a bit of inconsistency in how State Routes and US Routes were supposed to be named on the map based on the Wiki and actual names in the map itself.

I know a few states have decided to follow particular guidelines that are a little different from the general Wiki recommendations based on their local needs just as we do for separate countries.

I did some general searching in the forums, but the key target words are too widely discussed to find anything specific to my current proposal. So if someone recalls this discussion was already covered, feel free to comment or post a link if possible so we can link the conversation.

Proposal
For the United States, I propose that we change the Wiki here to recommend editors use the following convention when naming roadways (not the ramps which are already following this recommendation):
Segment Name - Detailed Description
SR-70 - State Route 70 with both directions as one road
SR-70 S - State Route 70 South with one direction for the road
SR-84 - State Highway 84 (using SR for both Route and Highway as with ramp names)
US-101 - United States Highway 101 with both directions as one road

Justification
1. All current ramps follow this convention to enable the least # letters onscreen to aid non-TTS visual navigation.
2. Current TTS properly parses "SR-70" as "State Route 70".
3. This reduces map text clutter by significantly reducing the number of letters strewn across the map.
4. Many parts of the map today are already following this convention either due to confusion between ramp naming and road naming, or having never reviewed the Wiki.
5. When updating roadway names it is faster and shorter to enter less total letters.
6. In California, Cal Trans uses the short acronym SR-xxx for State Route xxx in many of their public documents. I don't know for other states.
7. Many states already passed recommendations that use this convention for their state for most of the reasons already covered.
8. The Interstate Freeways are already entered as "I-xxx" for roadways and ramps and not "Interstate xxx" or some other abbreviation over one letter.
9. It would be consistent to have roadways named the same as the ramp names for consistency to the Waze drivers.

I understand that Road Shields are directly tied to the road segment name, but I also believe there are currently issues with road shields working properly with even the correct names. I should hope that Waze can assign road shields based on the same abbreviated road names as the TTS decodes today.