Skip to main content

Communicating Changes in Horizontal Alignment (2006) / Chapter Skim
Currently Skimming:

Summary
Pages 1-3

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 1...
... Activities included a literature review; focus group exercises involving practitioners in Michigan, North Carolina, and Indiana with some supplemental interviews of other practitioners in North Carolina and Tennessee; a nationwide survey of practitioners; focus groups with drivers in Michigan; a survey of crash-involved and typical drivers in Michigan and North Carolina; a field observation study of 40 drivers in Michigan, including three "expert" drivers from the Michigan State Police; and a final nationwide survey of practitioners to assess their response to proposed changes to the Manual on Uniform Traffic Control Devices (MUTCD)
Read the entire page →
From page 2...
... This language would be included in a new section, most likely between existing §2C.05 and §2C.06: Standard: After an engineering study has been made in accordance with established traffic engineering practice or where engineering judgment determines the need for horizontal alignment signs, advisory speed plaques, and/or supplemental guidance, these TCDs shall be used. Guidance: The factors that should be considered in determining the system of TCDs to be displayed when there is a change in the horizontal alignment of the highway include S-2
Read the entire page →
From page 3...
... Moreover, it is expected that "conversion" to a new method would lead to considerable inconsistency in the use of advisory speed plaques for several years. This would occur, if for no other reason, because of the apparent disparities in budgets of different county road commissions, resulting in some counties, states, or parts of states "converting" their advisory speed plaques immediately while others lag for several years until the advisory speed plaque and other curve-related TCDs might otherwise be updated as a part of normal maintenance.
Read the entire page →

Key Terms

  • horizontal alignment
  • speed plaques
  • speed plaque
  • traffic control
  • engineering study

  • posted speed
  • advisory speeds
  • horizontal curves
  • speed limit
  • alignment signs

  • statement regarding
  • recommendation concerns
  • horizontal roadway
  • speed appearing
  • speed equal

  • dard horizontal
  • applicable speed
  • speed values
  • basic signs
  • apparent disparities

  • ilar language
  • develop comprehensive
  • widely accessible
  • myriad combinations
  • traffic engineering

  • wholesale changes
  • adequately defined
  • alignment changes
  • state police
  • device handbook


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.