I don't drive faster than the speed limit, if there is a house very close to the road. On the other hand it's not unusual that people drive 100 kmph where I live, on a 70 kmph road, which definitely should be a 70 kmph even in my opinioin and not because I live here but because the road is narrow and full of bends. On the contrary: they place them on the broader roads that used to be 90 kmph roads as late as until a few years ago. This road has been a 70 kmph road ever since the speed limits were first introduced. That's because they can ticket much more people there, since much more people are going to and from their works on those roads and often hurry in the mornings if they're late.