An equal tangent vertical curve is intended to connect grades of 0.9% and -2.7%. 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. Use exact solution (do not use the table). Round your answer to 3 decimal places.

An equal tangent vertical curve is intended to connect grades of 0.9% and -2.7%. 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. Use exact solution (do not use the table). Round your answer to 3 decimal places.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 19P

See similar textbooks

Similar questions

An equal tangent vertical curve is intended to connect grades of -4% and 4.1%. If this curve is to be a part of a highway designed with a speed limit of 55mph, determine the minimum length (ft) of the vertical curve. Use exact solution (do not use the table). Round your answer to 3 decimal places.
An equal tangent vertical curve is intended to connect grades of -3.1% and 3.7%. If this curve is to be a part of a highway designed with a speed limit of 70mph, determine the stopping sight distance (ft) of the vertical curve. Use exact solution (do not use the table). Round your answer to 3 decimal places.
An equal tangent vertical curve is intended to connect grades of 5% and -2.5%. If this curve is to be a part of a highway designed with a PSD of 450ft, determine the minimum length (ft) of the vertical curve. Use exact solution (do not use the table). Round your answer to 3 decimal places.
An existing vertical curve on a highway joins a +4.4% grade with a -4.4% grade. If the length of the curve is 82m, what is the maximum safe speed on this curve? What speed should be posted if 8kph increments are used?
An equal tangent vertical curve is intended to connect grades of 3% and -3.2%. If this curve is to be a part of a highway designed with a speed limit of 70mph, determine the minimum length (ft) of the vertical curve. Use exact solution (do not use the table)
A proposed vertical alignment includes a +2% gradient followed by a -3% gradient. Assuming a design speed of 110km/hr, a truck driver eye height of 2.4m, a passenger car driver eye height of 1.1m, and an object height of 0.2m, calculate the minimum vertical curve length required for the vertical curve to maintain a stopping sight distance of at least 208.716m throughout. Note: Your answer should be provided to ONE decimal place and in units of meters.
A vertical curve joins a -3.25% grade to a +2.54% grade. For a design speed of 60mph, determine the minimum length (rounded up to the nearest foot) of the sag vertical curve based on adequate SSD (Stopping Sight Distance) (Round up calculated SSD as per AASHTO table) using the headlight sight distance criteria. Assume missing data / values from your own
Determine the minimum length (ft) for a vertical curve with 55mph design speed if the grades to be connected are -1.93% and 1.79%. Use the table provided by AASHTO. Round your answer to 3 decimal places.
A spiral easement curve has a length of 100m with a central curve having a radius of 360 m. The width of the road is 10m and design speed is 86 kph? a) what is the superelevation at the central curve? in meters b) what is the offset distance from the tangent to the second-quarter point of the spiral? in meters NEED ASAAAP
A circular curve connects two tangents that intersect at an angle of 48°. The point of intersection of the tangents is located at station 28+900. If the design speed of the highway is 90 km/h, determine both the point of the tangent and the deflection angles to whole stations for laying out the curve. (Select appropriate values for e and f.
A circular curve connects two tangents that intersect at an angle of 48°. The point of intersection of the tangents is located at station (948 67.32). If the design speed of the highway is 60 mi/h, determine both the point of the tangent and the deflection angles to whole stations for laying out the curve. (Select appropriate values for e and f.)
An old equal-tangent crest vertical curve was designed with a PVI at station 117+45 and elevation of 960 ft., and a PVC at station 110 + 85 and elevation of 927 ft. If the highest point on the curve is at station 117 + 65, what is the maximum safe design speed for this curve? (explore and report your answer in 5 mph increment) [hint: Use design tables. But this time, find the speed based on K]