Label data review about sentinel_traj_nn

[nagellette]

10m buffer: "fclass" in ("motorway", "primary", "secondary")
4m buffer: "fclass" in ( 'footway' , 'track', 'service' , 'steps' , 'track_grade1' , 'track_grade2' , 'track_grade3' , 'track_grade4' , 'track_grade5' , 'track', 'bridleway' )
6m buffer: remaining.

[nagellette]

Preperation of Montreal Data

• Extract required data interval from osh.pbf file into osm.pbf.
  osmium time-filter quebec-internal.osh.pbf 2018-12-31T23:59:59Z -o quebec-internal_2018.osm.pbf

• Extract Montreal area from osm.pbf file.
  osmium extract -b -75.0473,45.0678,-72.2555,46.0163 quebec-internal_2018.osm.pbf -o montreal-internal_2018.osm.pbf

• Read montreal-internal_2018.osm.pbf with "QuickOSM" plugin. Only "QuickOSM" converts tag names to attribute fields.

• Filter "highway" != '' and export into shp - exclude unnecessary fields especially the ones having inconsistent name with shape format.Output shapefile name is montreal-internal_2018_roads.shp.

• Query for excluded roads. Output files are named with "reduced". This shape files are also projected to raster epsg codes.

"highway" = 'bridleway' or
"highway" = 'bus_guideway' or
"highway" = 'bus_stop' or
"highway" = 'corridor' or
"highway" = 'cycleway' or
"highway" = 'disused' or
"highway" = 'elevator' or
"highway" = 'footway' or
"highway" = 'path' or
"highway" = 'proposed' or
"highway" = 'raceway' or
"highway" = 'services' or
"highway" = 'steps' or
"highway" = 'track' or
"highway" = 'yes'

• Following queries run and buffer_dis field updated with respective buffer value.

  • Query for 12m buffer roads

   "highway" = 'motorway' or
   "highway" = 'motorway_link' or
   "highway" = 'primary' or
   "highway" = 'primary_link' or
   "highway" = 'secondary' or
   "highway" = 'secondary_link'
  

  • Query for 7m buffer roads

   "highway" = 'tertiary' or
   "highway" = 'tertiary_link' or
   "highway" = 'trunk' or
   "highway" = 'trunk_link'
  

  • Query for 5m buffer roads

   "highway" = 'living_street' or
   "highway" = 'residential' or
   "highway" = 'rest_area' or
   "highway" = 'road' or
   "highway" = 'service'
  

  • Query for 4m buffer roads

   "buffer_dis" is null
  

• "_buf" files are created using "buffer_dis" field using QGIS.

• "_label" raster files created with using QGIS rasterize tool. Cell size is 2.5 x 2.5m and compression chosen as "DEFLATE"