Design of Horizontal Curves

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Design Considerations Safe Economically Practical • For the most part, Design Speed is used as the overall design control • Radius
Parameters Design of roadway curves should be based on an appropriate relationship between design speed and curvature and on their joint relationships with superelevation and side friction.
Page 1 and 2: Paul Deutsch NDDOT Office of Projec
Page 3 and 4: Why are Horizontal Curves Needed N
Page 5: Guidelines to Horizontal Curves A
Page 10 and 11: Superelevation Practical upper lim
Page 12 and 13: Methods of Distribution of Superele
Page 14 and 15: Finding Minimum Radius Minimum Rad
Page 16 and 17: Methods of Attaining Superelevation
Page 18 and 19: Superelevation Transitions Consist
Page 20 and 21: Runoff For appearance and comfort,
Page 22 and 23: Runoff NDDOT uses a Desired Relati
Page 24 and 25: Runout
Page 26 and 27: Equation for minimum length of supe
Page 28 and 29: Spiral Curves Simple Curve Spiral T
Page 30: Superelevation Tables Incorporatin
Page 34 and 35: Main Points Considerations for Hor
Page 36: Sources ○ A Policy on Geometric D

Design of Horizontal Curves

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