An equal tangent vertical curve is intended to connect grades of 3.1% and -0.8%. If this curve is to be a part of a highway designed with a PSD of 600ft, determine the minimum length (ft) of the vertical curve. Round your answer to 3 decimal places.
1. An equal tangent vertical curve is intended to connect grades of 3.1% and -0.8%. If this curve is to be a part of a highway designed with a PSD of 600ft, determine the minimum length (ft) of the vertical curve. Round your answer to 3 decimal places.
2. A 800ft vertical curve has its PVI at elevation 209.14ft. The initial and final grades are 4.8% and -3.2% respectively. Determine the elevation of a point 417ft from PVC. Round your answer to 3 decimal places.
3. Determine the practical stopping distance (ft) for a highway with a design speed limit of 95mph. Assume G = -0.21%. Round your answer to 3 decimal places.
4. An equal tangent vertical curve is intended to connect grades of 2.6% and -2.1%. If this curve is to be a part of a highway designed with a speed limit of 50mph, determine the minimum length (ft) of the vertical curve. Round your answer to 3 decimal places.
5. An equal tangent vertical curve is intended to connect grades of 3.7% and -2.3%. If this curve is to be a part of a highway designed with a speed limit of 65mph, determine the minimum length (ft) of the vertical curve. Round your answer to 3 decimal places.
6. A certain horizontal curve on a 6-lane highway (3 lanes each direction with no median) has a superelevation of 8% and a central angle of 33.6 degrees. The road has 10.6ft lanes and 8.2ft shoulders on both sides with high retaining walls going up immediately next to the shoulders. If the radius of the curve is 1449.7ft, determine the SSD (ft) provided on the curve. Round your answer to 3 decimal places.
7. A certain roadway designed to have a speed limit of 45mph. If the superelevation is 10 and the coefficient of side friction is 0.15, determine the minimum radius (ft) of the curve. Round your answer to 3 decimal places.
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