It seems like the vast majority of turn restrictions on ImproveOSM in the Greater Toronto Area are false positives. Most of them are u-turns which few people are making but as far as I can tell most of them have no sign prohibiting them. Most of the turn restrictions in Toronto are only at specific times and you need to do a survey (or use Mapillary) to find them. Also I found a strange false positive at Lake Shore and Strachan in Toronto where there is a right turn ramp westbound but it looks like there is no sign prohibiting turning right without the right turn ramp (see Mapillary). I did find a highway overpass that was incorrectly glued to a highway at Highway 403 and Highway 24 near Brantford though, which I fixed.

There are a lot of false positives caused by highway offramps leading to and from a two way road (most often, a service road parallel to the highway). Most of the traffic is going one way, but it is possible to go the other way.

1. There are several ways to tag no name roads. layers.openstreetmap.fr which has an alternative no names tool uses validate:no_name=yes, but ignores noname=yes. Can you please support the alternative ways of tagging no name roads (or should layers.openstreetmap.fr support noname=yes?)

2. highway=primary_link, highway=secondary_link, highway=tertiary_link etc. usually have no name and having no name is not incorrect. These should show up as orange.

3. Can you make the JOSM remote control not open a new tab? Thanks.

"Wikipedia accused of using its dominant position to unfairly compete with Encyclopedia Britannica". This is not a crime.

This user has made minor edits to all the fire hydrants in my area (Toronto). Thus making them non-ODBL compliant.

This data is not properly licensed for OSM.

Often there will be a very short stretch of one way road in these circumstances (i.e. there will be a short section of road that is narrowed so that there is only one car lane). In this case, I would use a one way tag.

If there is only a do not enter sign but the road is not one way and the road is wide enough for 2 cars to pass then use a turn restriction. In some cases I have seen do not enter signs which only apply at certain times of day e.g. to side streets off Eglinton Avenue West in Toronto. These are basically turn restrictions.