156 is not well drawn please see the separation between 156 and 157

via StreetComplete 33.1

Attached photo(s):
https://westnordost.de/p/54022.jpg

Unable to answer "Does this crosswalk have tactile pavings on both sides?" for node/248985264 via StreetComplete 33.2:

it does not exist (anymore)
you can see black boxes of the removed crossing

Attached photo(s):
https://westnordost.de/p/57968.jpg

building 21

via StreetComplete 33.2

Attached photo(s):
https://westnordost.de/p/57967.jpg

bridge from building 32 to building 21 at 1 st level

via StreetComplete 33.2

Attached photo(s):
https://westnordost.de/p/57966.jpg

belongs to 172 according to official map

via StreetComplete 33.2

belongs to building 143
https://maps.web.cern.ch/?xmin=2493267.75&ymin=1120983.07&xmax=2493375.7&ymax=1121168.55&rotation=335&basemap=plan&mode=2D

via StreetComplete 33.2

3.5t max

via StreetComplete 33.2

Attached photo(s):
https://westnordost.de/p/57633.jpg

parking

via StreetComplete 33.2

3.7m

via StreetComplete 33.2

Attached photo(s):
https://westnordost.de/p/57634.jpg

hight 3.1m, width 2.3 limit

via StreetComplete 33.2

Attached photo(s):
https://westnordost.de/p/57632.jpg