Determine the minimum length of a vertical curve between a +1.48% grade and a +6.2% grade for a road with a 100 km/h design speed. The vehicle approaches the curve from the side of +1.48% grade. The vertical curve must provide the sufficient stopping sight distance and meet the appearance criteria. For stopping sight distance the both vehicle and object are located within the vertical curve.  Consider a new road with a single carriageway in each direction, Rt=2.0s, d=0.36, h1=1.1m, h2=0.2m, height of headlight,h = 0.65m and q=1 degree.

Question The design speed of a highway is 80 km/hr and the radius of the circular curve is 150 m in plain topography. Which one of the following is the minimum length of the transition curve?

A vertical curve is to be constructed between a 2.5% grade and a -3.5% grade. The required sight distance is 305m. The dangerous object is considered to be on the pavement surface, and the driver's eye level is at 1.05m above the pavement surface. Determine the length of the vertical curve that will satisfy the sight distance requirement.

A+1 percent grade intersects with a-2 percent grade at station (535+ 24.25) at an elevation of 300 t. (a) if the design speed is 65 mi/h, determine the minimum length (in t) of vertical curve using the rate of vertical curvature. (Assume the stopping sight distance is less than the length of the curve.) it (b) Using the length found in part (a), find the stations and elevations (in R) of the BVC and EVC and the elevation (in t) of each 100 t station. (In the table below, the first row corresponds to the BVC and the last row corresponds to the EVC. Round your elevations to at least one decimal place.) Station Elevation (t) 533 + 00 534 + 00 535 + 00 536 + 00 537 + 00 538 + 00 (c) Using the length found in part (a), find the station and elevation (in t) of the highpoint. station nlevation

A circular curve of the highway is designed for traffic moving at 50 mi/hr. If the radius of the curve is 550 ft, what is the correct angle of banking of the road?

A horizontal curve is to be designed to connect two tangents on a rural principal arterial with a design speed of 110 km/h. The station of the BC is 545+13.65. It is expected that an existing building will be located at a distance of 15 m from the centerline of the inside lane. Determine the minimum radius that will satisfy the sight distance and superelevation requirements.

How much space should be cleared between an obstruction and the center of a roadway (in ft) for a horizontal curve with 2-11 ft lanes if the design speed is 67 mph and the radius of the curve is 1,037?

A section of a two-lane rural highway consists of a -3% grade intersecting a +4.5% grade. The speed limit on the highway is 55 mph. The height of headlights of an average car is 2.4 feet with a beam angle of 1.50. Determine the length of sag vertical curve that joins the two grades, considering a safe stopping maneuver