Using WME LiveMap Alerts Overlay
, I was very easily able to spot both "RRancho Cucamonga" for "Rancho Cucamonga" and "Fo" for "Fontana" along I-10. When I looked up the same alerts in the app, sure enough, the incorrect cities were there. I couldn't find any for "P" or "Lorba Linda", but that just means that there were no current alerts in the right spot at the right time. These are not WME "smudges".
After seeing a few other anomalies in my local area as well, I am convinced that one of these things is happening when an actual smudge is not there in WME:
1) Waze uses a completely different
city list for the app traffic and Livemap alerts versus the visual WME and app tile builds. In this case, it never would have been a smudge.
2) Waze uses the same city list, but in two different tables/databases/whatever. It was a smudge at some point, but the list for alerts is either out of sync or not refreshed often (over a year since there are cities available in the Ann Arbor, MI area that I know have not been existence since I started in Fall 2013...).
3) Waze uses the same list in the same database table, but cities that formerly had segment associations are which are now inactive in WME are still active for the alerts (i.e. it's "deleted" from our perspective in the sense that it is no longer in view, but it still appears in a table somewhere. It's common to maintain this history in databases and just flag something as active/inactive).