Detailed map of Google Maps road levels from zoomed out to in. These levels have always existed, but some looked exactly like others.
Dead end: Dead ends, some exceptions.
White: Normal road.
Yellow: Road that used to be yellow (and is yellow in Google Mapmaker)
Route: Has a route number; there are some false negatives and false positives though.
Orange: Obviously light orange. Almost all US routes are at least this.
Thick orange: Used to look like a freeway, but looks like normal orange except in 2 specific zoom levels.
Freeway: Dark orange.
Zoom | Dead end | White | Yellow | Route | Orange | Thick orange | Freeway |
5,6 | | | | | | | Interstate only |
7 | | | | | Some shown, all US shown, gray | Some shown, all US shown, orange | Interstate and US only |
8 | | | | | Some shown, all US shown, thin orange | Some shown, all US shown, thick orange | Interstate and US only |
9 | | | | Random | Some shown, all US shown | Some shown, all US shown | Random, all US and Interstate shown |
10 | | | Thin line | Shown | Shown | Shown | Shown |
11,12 | | Shown | Shown | Shown | Shown | Shown | Shown |
13,14 | Shown, thinner line than white | Shown | Shown | Shown | Shown | Shown | Shown |
15 | Shown | Shown | Shown | Shown | Shown | Shown | Shown |
Edit: Changed "are" to "and" once in the description.
So what happens when a road shows up on one zoom and disappears on the next one?
Quote from: Steve on September 23, 2013, 11:25:47 PM
So what happens when a road shows up on one zoom and disappears on the next one?
If you are talking about what NH 125 does (shown at zoom level 7 or more, but only partially at exactly 9), zoom level 9 is probably the worst zoom level out of all of them.