Hello, mkarau ;
I thank you for adding these barriers that exist in reality to improve the OSM map and apologize if the changes I made upset you but it’s better to place just one barrier on the road, which will serve the route, rather than placing them far from the road, as they would be considered floating and wouldn’t affect the route in any way
For example,
https://www.openstreetmap.org/node/12218156441
https://www.openstreetmap.org/node/12218156429
And here is the wiki page that explains how to place barriers on the road.
https://wiki.openstreetmap.org/wiki/Key:barrier
Before we deleted the remaining floating barriers in this changeset
https://osmcha.org/changesets/157407525
 we made sure to check the Mapillary tracks to confirm whether these barriers exist or not.
For example,
https://www.mapillary.com/app/?lat=24.523371815731977&lng=54.43358188460479&z=19.9&focus=photo&dateFrom=2017-01-01&pKey=2909420236004972&x=0.49282946688680535&y=0.4797415233108498&zoom=0
Also, some of the barriers you added are not barriers, but rather traffic signal poles
For example,
https://www.openstreetmap.org/node/7710055157
https://www.openstreetmap.org/node/7710055156
And this was also verified using the Mapillary track.
https://www.mapillary.com/app/?lat=24.523303900068996&lng=54.43357200000003&z=19.9&focus=photo&dateFrom=2017-01-01&pKey=334833254678863&x=0.49553902361084423&y=0.6384033843866203&zoom=0
Could you please fix these issues? based on the open street map policy.
Regards
 salma_z 