The following data is given for a horizontal highway curve having 2 lanes with Lane width...

The following data is given for a horizontal highway curve having 2 lanes with Lane width of 3.65 m each: Ruling design speed is 110kmph, Allowable rate of change of circular acceleration = 0.5 to 0.8. Allowable rate of introduction of super-elevation = 1 in 144, Take maximum allowable superelevation and lateral frictional co-efficient is 0.15.

Calculate the length of a transition curve for following cases.

Rate of change of centrifugal acceleration (C).

Rate of introduction of super-elevation.

Using empirical equations for plain and mountainous terrain.

Solutions

Expert Solution

Ally Wells answered 3 months ago

Next > < Previous

Related Solutions

A horizontal curve along a two-lane highway with 12-ft lanes is designed with a central angle...

A horizontal curve along a two-lane highway with 12-ft lanes is designed with a central angle of 29.93 degrees and a superelevation rate of 8 percent. The station of the PC and PI are 100+00.00 and 103+22.36, respectively. Given this information: a. Determine the design speed of this curve. (12 points) b. Calculate the distance that must be cleared from the center of the inside lane in order to provide sufficient stopping sight distance (8 points)

A four-lane undivided multilane highway (two lanes in each direction) has 3.4 m lanes and 1.5...

A four-lane undivided multilane highway (two lanes in each direction) has 3.4 m lanes and 1.5 m shoulders. At one point along the highway there is a 4% upgrade that is 1 km long. There are 15 access points along this grade. The peak-hour traffic volume has 2500 passenger cars and 200 trucks and buses (no recreational vehicles), and 720 of these vehicles arrive in the most congested 15-min period. This traffic stream is primarily commuters. The measured free-flow speed...

TRP 631: HIGHWAY TRAFFIC OPERATIONS An older four-lane freeway has the following characteristics: 11 ft lanes...

TRP 631: HIGHWAY TRAFFIC OPERATIONS An older four-lane freeway has the following characteristics: 11 ft lanes No lateral clearance 4.5 ramps/mile 5% truck( standard mix) Peak-hour factor = 0.90 Rolling Terrain The present peak-hour demand on the facility is 2,100 veh/h, and anticipated growth is expected to be 3% per year. What is the present LOS? What is the expected LOS in 5 years? 10 years? 20 years?. To avoid breakdown (LOS F), when will substantial improvements be needed to...

Estimate the total width of right-of-way (ROW) of a depressed divided rural highway with three lanes...

Estimate the total width of right-of-way (ROW) of a depressed divided rural highway with three lanes in each direction. Show the median, shoulders lanes, side slopes, and so on, with recommended dimensions on a cross-section of the highway

Horizontal Curve Problem- A field measurement of an existing two-lane curved roadway (horizontal curve) indicates that...

Horizontal Curve Problem- A field measurement of an existing two-lane curved roadway (horizontal curve) indicates that the chord length (C) for the inside radius of the road (roadway edge line) is 312.5 ft and the distance from the middle of the chord to the roadway edge line 25 feet. The road has 28 feet of travel way, 14 feet for each lane. Respond to the next three questions about this horizontal curve. 1. Radius for the horizontal curve to the...

A multilane highway has two northbound lanes. Each lane has a capacity of 1500 vehicles per...

A multilane highway has two northbound lanes. Each lane has a capacity of 1500 vehicles per hour. Currently, northbound traffic is consists of 3100 vehicles with 1 occupant, 600 vehicles with 2 occupants, 400 vehicle with 3 occupants, and 20 buses with 50 occupants each. The highway’s performance function is t = t0 ( 1 + 1.15 (x/c)6.87 ) where t is in minutes, t0 is equal to 15 minutes, and x and c are volumes and capacities in vehicle...

An existing rural 4-lane freeway (2 lanes in each direction) has 11-ft lanes and 2-ft lateral...

An existing rural 4-lane freeway (2 lanes in each direction) has 11-ft lanes and 2-ft lateral clearance. The freeway hasa peak-hour volume of 1,800 veh/h in one direction, 5% trucks in the traffic stream, and a PHF of 0.92. The freeway has 1 cloverleaf interchange within three miles of the midpoint of segment, and runs through level terrain. No recent field speed data is available. a) Using HCS7, determine the LOS during the peak hour. b) What is the capacity...

3-lane freeway reduces to 2 lanes total flow in section = 5000 veh/hr lane saturation flow...

3-lane freeway reduces to 2 lanes total flow in section = 5000 veh/hr lane saturation flow rate= 2400 veh/hr traffic density at A: 10veh/km/ln shockwabe speed Wab between A nad B = -10km/hr Find traffic density at B (immediately upstream of the lane reduction) and the stream flows at locations A (far upstream from lane reduction), B, and C (within the lane reduction)

A trapezoidal channel having bottom width 6m ,side slopes 2 horizontal to 1 vertical ,Mannings n=...

A trapezoidal channel having bottom width 6m ,side slopes 2 horizontal to 1 vertical ,Mannings n= 0.025 and bottom slope 0.016 ,carries a discharge of 10 m3/sec . Compute the back water profile created by the dam which backs up the water to a depth of 2.0 m immediately behind the dam ((Direct method if it is possible))

A trapezoidal channel having bottom width 6m ,side slopes 2 horizontal to 1 vertical ,Manning’s n=...

A trapezoidal channel having bottom width 6m ,side slopes 2 horizontal to 1 vertical ,Manning’s n= 0.025 and bottom slope 0.016 ,carries a discharge of 10 m3/sec . Compute the back water profile created by the dam which backs up the water to a depth of (3) immediately behind the dam. [ 5 Marks ] ( THIS SHOULD BE DONE USING EXCEL SHEET )

Subjects