Driving around residential Connecticut we saw a lot of blind and hidden driveway warning signs. After a while, we started to wonder what the difference is between a blind driveway and hidden driveway road sign. Our guess is this: to the driver on a road, a driveway can be hidden (HIDDEN sign). And, that same driver should be careful because drivers emerging from the driveway are blind to what’s coming on the road (BLIND sign). In general, it's best to interpret both as BE CAREFUL.
We never did find a suitable but did find some fun sites where you can learn more about traffic signs:
- Manual of Traffic Signs
- Manual on Uniform Traffic Control Devices (MUTCD)
- Wisconsin DOT says signs like HIDDEN and BLIND are not in MUTCD.
- Overview of diamond signs - the photos here are from this site
Both signs are notices of a dangerous condition on the roadway. In my opinion if you have a related crash, sue everyone. The property owner with the driveway has no legal right to maintain a dangerous condition on public property. The road authority has every responsibility to identify and eliminate dangerous conditions. In three states so far, the state supreme courts have found against the property owner. If you are an owner, hire a good engineer and get it fixed so you don't need the sign.
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