Turn Restriction "NO" on edges adjacent to osm turn restrictions starting with anything but "no"

[availle]

trafficstars

Hi,

while working with data generated by ArcGis I found the following bug:

Apparently the method CreateTurnFeature_ONLY which is called when the osm turn restriction relation starts with "only" (so, only_right_turn / only_left_turn / only_straight_on) hardcodes the turn restriction field of all adjacent edges in ArcGis to "NO" (line 261).

in /src/OSMGeoProcessing/NetworkDataset/NetworkTurns.cs

I fail to see the reasoning behind this. Isn't "only_right_turn" a combination of "no_left_turn" and "no_straight_on"?

I think it might be better to just set the tag of the original edge to whatever the osm format says and leave the adjacent edges alone.

[paulcone]

What if there are more than three directions to go?