The screenshot shows where the restriction starts for cars/trucks traveling in the other direction. One would expect an "end of speed restriction"-sign on the other side of the road there. Ditto for the other side of the roadworks.
Kalmar - Nordic Steinbrott : 50km/h speedlimit not lifted after roadworks. ; [29/12/2015 00:05] (sec+0005-0010);20862.8;11.2499;-36417
