Easy road marks

Those who believe that only life itself can be troublesome,
they have probably never thought about road markings or maybe not noticed it.

Double lines must never be crossed by vehicles,
the triangle means that the vehicle must be held back and await free lane.
Why wait for free lane at a line that must not be crossed.?

Why haven’t the road workers spent an ½ hour more here,
then they could have dug the sewage pipe all the way down.?

The intention is certainly to warn of a sharp turn.
Maybe some road users think they need to turn around in the middle of the bend.?