CHAPTER 5 HORIZONTAL ALIGNMENT - South Dakota

CHAPTER 5. HORIZONTAL ALIGNMENT . Introduction 5-2. Factors Influencing the Selection of HORIZONTAL ALIGNMENT 5-2. General Criteria 5-3. Sight Distance 5-5. Figure 5-1 Sight Distance Measurements for HORIZONTAL Curves HORIZONTAL & Vertical ALIGNMENT Coordination 5-9. Striping No-Passing Zones 5-10. Intersecting Roads 5-10. Utilities 5-11. Transition (Spiral Curves) 5-11. Circular Curves 5-11. Figure 5-2 Circular Curves Superelevation 5-13. Figure 5-3 Superelevation Transitions Figure 5-4 Sample Calculation Figure 5-5 Superelevation Transition for 2 Lane Highway Table 5-1 Rural Low Speed Table 5-2 Urban Low Speed Table 5-3 High Speed Figure 5-6 Superelevation Transition for Divided Highways Table 5-4 Maximum Relative Gradient Traffic Diversion ALIGNMENT 5-30. 5-1. INTRODUCTION. HORIZONTAL and vertical alignments establish the general character of a rural highway, perhaps more than any other design consideration.

Decisions on alignment have a significant impact on construction costs. ... If a project is a combination project, work with the resurfacing ... This corresponds to the format utilized by the current SDDOT Road Design software. Coordinate with the resurfacing designer on this procedure as well.

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  Project, Construction, Horizontal, Alignment, Sddot, Horizontal alignment

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