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Oregon/Major roads/Main

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The purpose of the Oregon Major Roads page is to inform map editors on what is being worked on or is completed in the State of Oregon, as well as what is planned according to ODOT or other cities as we find out about them.

Locking standard

In Oregon we have a set minimum standard for locking roads based on segment type. Any road of a certain segment type must be locked at least to the rank (level) in the chart below. Roads may be locked higher for protection and special situations (areas with construction, tricky design, frequent mistakes, imaging inaccuracies, and the like), but should not be locked lower.

A great time to implement these locks is while bringing the road types of an area into compliance with the current US road type standards (FC and highway systems). Lock the roads based on type after they've been set to current US road type standards.

Oregon Minimum Locking Rank Standard
Segment Type Statewide
 Freeway  4
 Ramp  4
 Major Highway  3
 Minor Highway  2
 Primary Street  2
 Street  1
 |-|-|-|-|-|-|-|-|-| Railroad |-|-|-|-|-|-|-|-|-|  2
 • • • • Ferry • • • •   5

Road Elevations

These are the general guidelines for elevation in Oregon:

  • Drivable and non-drivable segments are handled the same way with elevation.
  • Set elevation to ground in most cases.
    • Segment(s) passing over other segment(s), rivers, major waterways, and all bridges shall have higher elevation, relative to ground.
    • Only elevate/lower the actual bridge/tunnel section of the road.
    • Elevation of overlapping segments should be set relative to each other, with the lowest segment as Ground (unless a tunnel).
    • Tunneled segments shall have lower elevation, relative to ground.
    • Only segments that "cannot see the sky" should have negative elevation (i.e. tunnels).
    • Only set elevation as low/high as necessary.
  • If you use the Bridge tool to join segments, be aware that it raises the elevation of the joined segment. Lower the joined segment as appropriate.
  • "True Elevation" guidelines apply to elevation in Oregon.
    • Bridges should be cut at the start/end of the bridge.
    • Tunnels should be cut at least 15m/50ft before and after the tunnel, to allow time for the GPS to regain signal.
    • Do not cut segments for elevation purposes if the bridge/tunnel starts/stops within 60m/200ft of an existing junction.