#44 - Japan road improvement: Beppu - Oita

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Part of Japan road improvement series

Created by PlaneMad - Updated - Priority: medium

  Instructions

Changeset Comment
#japan-road-improvement-44 http://tasks.openstreetmap.in/project/44 Aligning existing highways to GSI orthorectified imagery
When saving your work, please leave the default comment but add what you actually mapped, for example "added buildings and a residential road".
Imagery

GSI/ort


Tracing source

  • GSI Japan Satellite (ort) http://cyberjapandata.gsi.go.jp/xyz/ort/{z}/{x}/{y}.jpg
  • Changeset comment source=GSImaps/ort

Passes

  • Pass 1: Realign and merge major highways (motorway-secondary); Create dual carriageways on major highways with link roads and correct oneways
  • Use inverse filter highway=motorway|trunk|primary|secondary|*link|motorway_link
  • Pass 2: Realign and merge tertiary; Adding missing tertiary+ highways and link roads; Adding missing bridges/tunnels on tertiary+ highways;
  • Pass 3: Realign, merge and add missing unclassified, residential roads, living streets
  • Pass 4: Realign, merge and add missing service roads, tracks and paths
  • Pass 5: Correct natural features polygons and waterways, add missing bridges, tunnels and viaducts

Tagging

  • Delete the imported yh:WIDTH tag if required to help combining ways
  • Do not reclassify existing roads unless there is a good reason to do so
  • Japan drives on the left hand side of the road, make sure the oneways are in the correct direction.

Changeset comment

  • source=GSImaps/ort

  Start contributing

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