Extracted text: A rural highway difflicate by angle of 50° 40' Find: 1. The tangent and curve length, 1 D=4° 2. Requirement a super elevation if the design speed 100 Km/hr., and the coefficient of side friction (0.13) 3. What is the clear nest distance required for an of structure near the road if coefficient of skidding friction is 0.29.