00196646

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http://onlinepubs.trb.org...s/trr/1978/685/685-001.pdf

https://scholar.google.co...rdle&publication_year=1978

When superelevation transitions occur within or adjacent to vertical curves, the profile of the edge of the road is sometimes distorted into shapes that are visually unpleasant or cause severe frainage problems, particularly on freeways or other wide roads. Such problems can be easily and quickly solved by simple algebraic methods that need no plotting of edge profiles to scale or resorting to curves more complicated than standard parabolic vertical curves if one takes advantage of the inherent simplicity of standard highway geometry. Methods for doing this are developed and demonstrated with a numerical example. /Author/

Publication of this paper sponsored by Committee on Geometric Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

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pp 1-7

1978

Transportation Research Record

0309028302

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Figures (4) ; References (11)

Aesthetics; Curves (Geometry); Geometry; Highway design; Pavements; Surface drainage

Edges; Profiles

Design; Highways; Hydraulics and Hydrology; Pavements

TRIS, TRB

Sep 15 1979 12:00AM

• COST-EFFECTIVENESS OF DRIVEWAY SLOPE IMPROVEMENTS
• DETERMINING DESIGN FLOWS FOR CULVERTS AND BRIDGES ON UNGAUGED STREAMS: A WATERSHED RATIONALE. ABRIDGMENT
• EARTH BERMS AND THEIR ACTUAL AND PERCEIVED EFFECTS ON NOISE AND PRIVACY IN ADJACENT NEIGHBORHOODS
• HYDRAULIC AND SAFETY CHARACTERISTICS OF SELECTED GRATE INLETS. ABRIDGMENT
• PAVEMENT WIDTH STANDARDS FOR RURAL TWO-LANE HIGHWAYS. ABRIDGMENT
• RAINFALL INTENSITY-DURATION-FREQUENCY CURVES DEVELOPED FROM (NOT BY) COMPUTER OUTPUT
• SUPERELEVATION AND CURVATURE OF HORIZONTAL CURVES