Upvote:4
Wetness does not comprise all kinds of precipitation.
- There are separate signs for snowfall (268), for black ice (
1007‑30, 101‑51), for fog (1007‑61), smoke (1007‑31), and for “wetness” (1053‑35).
The legislation therefore distinguishes between those states.
- The entire street needs be covered by a layer of liquid water.
Puddles or other patches of wetness do not matter.
(German Federal supreme court decision of 1977‑12‑20, 4 StR 560/77)
- The road condition must be recognizable from the driver’s seat.
Either it’s currently raining so the windshield is covered by (liquid) water, or there are other indications of the previously mentioned criterion.
I don’t think the speed traps are “smart” enough to determine partially obscured license plates or even wetness.
The electric circuits simply measure the speed of any moving object in front of them and exceeding the limit releases the shutter.
There’s usually an orange color filter in front of the flashlight so it doesn’t dazzle drivers (at night).