text: https://www.openstreetmap.org/way/33611562#map=19/39.94442/116.38207&layers=N
  
  are road here really a service=alley?
  
  highway=service + service=alley is not for all roads with "alley" in the name
  
  it is also not for road used as a primary access
  
  See https://wiki.openstreetmap.org/wiki/Tag:service%3Dalley "provide access things such as back gardens, rear entrances, fire exits, and storage areas"