Difference between revisions of "West Virginia/Major roads/Main"

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Latest revision as of 14:22, 9 May 2019


State & County Route Naming

State highways that are primarily signed at entering intersections with a State Route number like 75px-WV-2.svg.png rather than a road name should be named WV-### ("WV-2"). County roads that are primarily signed at entering intersections with County Road numbers like WVCountyMain.png or WestVirginiaCountySub.png rather than a road name should be named CR-## or CR-##/## ("CR-65" or "CR-91/1").

WV Naming and Road Type

Click here West Virginia/Major_roads for WV Specific Naming and Type

True Elevation

  • Also known as Bridge and Overpass Segmentation Elevation (BOSE)
  • Also known as Seagull Effect (Do Not Use)

West Virginia uses the concept of True Elevation on segments within the State. The use of True Elevation (TE) is to better represent segments in relationship with its surroundings/ground level. Most segments should have an elevation of Ground unless they pass over another segment, waterway, or natural feature. Drivable and non-drivable segments are handled the same way with elevation.

The practice of True Elevation is NOT observed on Freeway or Ramp segments.  

Definitions

Bridge

  • Segment travels over another segment (also known as Overpass)
  • Segment travels over a river or body of water
  • Segment artificially elevated to pass over ground level objects and natural features.

Tunnel

A tunnel is any road segment that is underground and thus the GPS reception is inconsistent.

Implementation

  • Elevation of overlapping segments should be set relative to each other, with the lowest segment as Ground (unless that segment is a tunnel).
  • Only elevate/lower the actual bridge/tunnel section of the road.
  • Bridges should be cut at the start/end of the bridge where the land falls away. You can usually see guardrail at the start/end of the bridge section. Also the pavement type may change (Asphalt to Concrete for example).
    • Do not cut segments for elevation purposes if the bridge starts/stops within 60m/200ft of an existing junction.
    • No need to elevate segments over every small creek or box culvert. Only elevate over significant waterways or natural features.
  • Only set elevation as low/high as necessary. For example, no segment should be Elevation +2 unless it passes over another segment with Elevation +1.
  • Tunneled segments shall have lower elevation, relative to ground and Tunnel should be checked.
  • Only segments that are actually underground should have the negative elevation.
  • Tunnels should be cut at least 15m/50ft before and after the tunnel, to allow time for the GPS to regain signal.
  • The use of common sense is paramount in using True Elevation.


NOTE: 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.


Speed Limits

West Virginia follows the USA Guidelines for Speed Limits. The ONLY speed limits that should be added to the map are Regulatory Speed Limits. Consult the Speed Limits (USA) Wiki for details on how to set speed limits on ramps, At-Grade Connectors, Roundabouts, Private/Parking Lot Roads, and Construction Zones. Note for WV, speed limits change at the sign; consult the Wiki for guidance on when to create a new junction for the Speed Limit change.

MAR Minimum Road Lock Standard

Minimum Road Lock Standard
Segment Type Direction Lock
 Freeway  5
 Ramp  4
 Major Highway  4
 Minor Highway  3
 Primary Street  One-way
Two-Way
3
2
 Street  Private Road  One-way
Unpaved
Two-Way
2
2
1
 Off-road / Not maintained  2
 |-|-|-|-|-|-|-|-|-| Railroad |-|-|-|-|-|-|-|-|-|  2
 • • • • Ferry • • • •   5
 ⁃     ⁃        ⁃        ⁃        ⁃ Runway ⁃        ⁃        ⁃        ⁃        ⁃  4
Other Named Types 5