ODOT updating curve advisory speed signs throughout OR - KPTV - FOX 12

ODOT updating curve advisory speed signs throughout OR

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(Courtesy: Oregon Department of Transportation) (Courtesy: Oregon Department of Transportation)

The Oregon Department of Transportation said they will be changing 50 to 70 percent of all curve speed advisory signs throughout the state.

The change will occur over the next three to four years. Most of the signs will increase by 5 to 10 miles per hour.

ODOT said there are three main reasons they are changing the speed:

  • New federal requirements improve safety and create consistency. Updated federal procedures require consistency of curve advisory speeds on all public roads. Consistency in curve signing means a curve with an advisory speed of 40 mph in the Willamette Valley will feel similar to a 40 mph curve in Baker County or a 40 mph curve in another state.
  • New technology allows for more reliable speeds. New technology allows us to determine advisory speeds for curves with greater certainty; current speeds were set using the analog tools that have now been replaced with GPS-aided digital tools.
  • Vehicles, road design and pavements have advanced. Newer vehicles can corner with increased speeds while maintaining a comfortable ride. Oregon's roads have also benefited in the past several decades from improved design and advanced pavements, creating safer, smoother roads.

ODOT crews and contractors have already started replacing or removing signs.

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