A car hits a tree at an estimated speed of 35 miles/hour at a 3% descent. If a 100 ft slip mark is observed on dry pavement (F = 0.45), followed by 250 ft (F = 0.20) on the grass stabilized shoulder.  Estimate the instantaneous initial speed of the vehicle before pavement slippage begins

Q: What is the SSD of a driver/vehicle traveling at 40 mph along a 5% uphill? Assume general braking…

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Q: A vehicle weighing 2000-lb is traveling 30 mph at 5% upgrade with rate of 6 ft/sec². The vehicle has…

A: solution: Given: vehicle weight = 2000 lb. speed = 30 mph grade = +5% acceleration rate = 6ft/sec2…

Q: The car's braking distance from a velocity of v= 96 km/hr is 45 m on a level pavement. Assuming that…

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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: A standard HL-93 Truck impends to overturn on a super elevation highway curve at a speed if 120 mph.…

A:

Q: the required superelevation is

A: Given data, A highway is designed fro,  v= 80 km/h radius,r= 250 m Determine the required…

Q: A 2-lane highway has lane widths of 9ft (2.75 m), with 6ft (1.83 m) clear hard shoulders. There are…

A: The quality of traffic service is related to the flow rate using the concept known as level of…

Q: A roadway is being designed for a speed of 60 mi/h. At one horizontal curve, it is known that the…

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Q: On a normal day, the speed limit of a hi-way curve is 39 mph. If the curve has a radius of 580 ft,…

A: Given data : Radius (R)=580 ftCoefficient of friction (μ)=0.3Speed (V)=39 mph

Q: A vehicle travelling at 50kph was stopped within 6.50 seconds after application of breaks. Determine…

A: The given data is shown below: Speed=50 kphTime=6.5 s

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.