etermine the minimum length of a vertical curve needed to join a +2% grade with a -3% grade na section of a highway with 80 km/h design speed. Assume h1=1.14 m and h2 = 0.15 m. pply standard perception-reaction and action time at 2.5 seconds with the coefficient of iction between the tires and the pavement at 0.30.

Q: A large grain elevator is located 40 ft from the centerline of a two- lane highway, which has 12-ft…

A: Combines harvest grain from the field and transfer it to a grain cart or directly into a truck…

Q: A horizontal curve has two lanes per direction. The radius, measured to the center marking that…

A: In communication lines, curves are typically used to ensure a smooth change in direction at the…

Q: Q1) The project speed is 100 km/h on a divided state road with a vertical curve. The driver's…

A: Designed speed (V) = 100 kmphReaction time (t) =  2 secFriction coefficient (f) = 0.4Elevation and…

Q: A 4 lane divided highway with a 12 feet median has a highway grade of -1.5%. The minor road approach…

A: The given data is shown below: Grades=-1.5% and 3.5%Design speed=45 mph and 40 mph

Q: A two-lane highway along the border has a horizontal curve segment with radius of 656 ft (measured…

A: A two-lane highway (separated) along the border has a horizontal curve The radius of the curve = 656…

Q: A vertical curve is needed to join to tangents; G₁=5% and G2=2%. Assuming the worst case scenario…

A:

Q: A one lane loop ramp at the northwest quadrant of an interchange, this loop ramp is for northbound…

A: Given- Friction factor f=0.095, Design speed V=35 mph, Radius R=545 ft,

Q: Compute the minimum radius of a circular curve for a highway designed for 80 km/h. Because snow and…

A: Design speed (V) = 80 Kmph Maximum superelevation (e) = 8% = 0.08 Determine the minimum radius of…

Q: The vertical curve shown below has a design speed of 60 mph. Determine the minimum length of the…

A: V = 60 mph G1 = -1.35%G2 = 2.4%

Q: A vertical curve is needed to join to tangents; G₁=2% and G2-5%. Assuming the worst case scenario…

A: Given :- Vertical curve Grade of first tangent , G1 =2% Grade of second tangent , G2 = 5% Design…

Q: A sign is located 7 ft from the edge of the pavement on a 3° horizontal curve. Determine if the sign…

A: Given Degree of curve=3° Design speed=50mph Width of lane=12ft

Q: 3. A 3° horizontal curve is proposed to begin at STA 12+35 and end at STA 34+35. The design speed of…

A:

Q: An existing vertical curve on a highway joins a +4 percent grade. Assume f=0.4 and…

A:

Q: A road with 4.5% upward grade has a design speed of 90kmph, if coefficient of longitudinal friction…

A: To determine the sight distance ,Sight Distance = (V2/2g * f) + (V * t)where:V = Design speed = 90…

Q: roblem 13 etermine the minimum stopping sight distance on a -4.0 % grade at a esign speed of 100…

A: Stopping sight Distance = Lag time + Braking Distance Assume Parameter V = 100km/hDowngrade = - 4% f…

Q: A car is traveling up a 1.25% grade of a crest curve with a design speed of 65 mph. The descending…

A: Given data: Design speed=65 mph N1=1.25% NE=-2.75% It is asked To find length of curve for minimum…

Curve setting

A curve is a turn that is provided horizontally or vertically in the design of highways, railways, and runways. A curve connects two straight lines that are separated by the deflection angle. It helps to change the direction and alignment of the highways, railway tracks, and runways. Therefore, the gradual change in their alignment is made by using a curve to provide comfort to the passengers and this also provides an easy turn to change the direction of the moving vehicle.