There are 5 lanes, 2 in each direction and 1 center lane.
At the point where the Highway has a decline, the speed-limit is 80km.
Still on the decline, there is a speed-limit sign "60km ahead", followed after ONLY 90m with "60km begins".
I was driving in the left lane driving around 85km with a row of cars behind me.
I was clicked at 89km per hour in a 60km zone.
I argue, that I was driving 89km and I argue that slowing down from 80km to 60km on a 5 lane highway on an incline without bringing the cars behind me in danger, needs at least 250-300m between the 'ahead sign and the 'begin' sign and that 90 meters is way too short.
Is there any validity to this argument and/or are there any regulations that supports my view?