On 20.10.19 20:52, Markus wrote:
On Sun, 20 Oct 2019 at 19:52, Jan Michel <[email protected]> wrote:
I don't see how a 2-3 cm high kerb provides any kind of safety for a
pedestrian.

Not much, but luckily most kerbs (at least those i came across) are
much higher (usually 10 cm and more). They are only lowered at
pedestrian crossings or at driveways. Cars and buses sometimes
accidentally touch kerbs while driving (on narrow roads) and then get
thrown in the other direction. So i'd say that they definitely provide
some safety to pedestrians.

That might be the case for the place where you live. Here is a randomly picked street from Frankfurt with what I would call the typical German kerb in residential streets:
https://www.mapillary.com/map/im/MB7QKRH0wkXrCicGrK9HpA
(and no, parking on the kerb is not allowed here even though almost all cars do it in this street)

They might be a bit higher and more rectangular on major roads, but more than 10 cm height is really rare. Also note that most of the height of the kerb is only because the water drain is lower than the road surface.


Jan


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