[OSM-dev] Why no curves in map data?

[Udo Giacomozzi]

Is there a good reason why all map databases seem to be fixed on
straight lines and do not support some kind of bezier curves? After
all, streets most of the time have curves and only at junctions or in
other rare situations have corners.

Using bezier curves would at the same time lead to more smooth lines
and reduce way points and are not really hard for renderers nor for
calculating intersections and similar.

I realize that the OSM data will continue to use straight lines, but
I'm just wondering why curved data is deprecated.

Udo