The overall objective of this research was to investigate the relationship between design, operating and posted speed on rural two-lane two-way highways in Nebraska with posted speeds of 55, 60, and 65. Crest vertical curvature and horizontal curvature on a sample of these existing highways in Nebraska were investigated to determine if changes in vertical and horizontal alignments affected the operating speeds of motorists using the roadway. Procedures were suggested to help determine: a reasonable design speed to use on a new or reconstructed highway; a reasonable initial posted speed on a new or reconstructed highway; and a reasonable posted speed for an existing highway.
Relationship between Design, Operating, and Posted Speeds under High-Posted Speed Conditions
2000
362 pages
Report
Keine Angabe
Englisch
Transportation & Traffic Planning , Transportation , Transportation Safety , Road Transportation , Rural highways , Two lane roads , Highway design speed , Road curves , Highway safety , Speed limits , Nebraska , Safety engineering , Speed studies , Highway design , Data collection , Research projects , Recommendations , Curvature , Design speed , Highway planning , Operating speed , Posted speed
Speed: Understanding Design, Operating, and Posted Speed
NTIS | 1996
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Transportation Research Record | 1996
|Design Speed, Operating Speed, and Posted Speed Survey
Transportation Research Record | 1996
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