00131185

Component

http://onlinepubs.trb.org...s/trr/1975/556/556-004.pdf

https://scholar.google.co...laar&publication_year=1975

This paper uses the tangent method to determine the maximum length of an approach to a curve so that the driver does not see a kink (a sudden change in direction) in the alignment. Equations are presented for plan curves, crest curves, sag curves, and combinations of these curves. The picture presented by the road to the driver can be analyzed with the equations, and, thus, the road design engineer is able to relate important road properties to driver experiences. It is suggested that using this method to check road alignment design for kinks reduces the need for the time-consuming process of drawing perspectives.

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.

01411414

pp 35-50

1975

Transportation Research Record

54th Annual Meeting of the Transportation Research Board

0309024633

Print

Appendices (1) ; Figures (7) ; References (6)

Alignment; Equations; Highway curves; Highway design; Tangents

Design; Highways

TRIS, TRB

May 14 1976 12:00AM

• COMPOSITE CONDUIT CONSTRUCTION FOR LOWER COST INSTALLATIONS AND IMPROVED PERFORMANCE
• FAILURE OF A CAST-IN-PLACE UNREINFORCED CONCRETE CONDUIT
• QUALITY OF URBAN FREEWAY STORM WATER