Determine the practical stopping distance (ft) for a highway with a design speed limit of 65mph. Assume G = -4.99%.
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- Determine the total stopping distance (ft) for a highway with a design speed limit of 55mph. Assume G = 3.39%. Round your answer to 3 decimal places.Determine the total stopping distance (ft) for a road with speed limit of 38mph and grade of -1.7%. Round your answer to 3 decimal places.Determine the practical stopping distance (ft) for a road with speed limit of 45mph and grade of -3.8% Round your answer to 3 decimal places.
- Considering linear relationship between density and speed, you are required to estimate the corresponding flow and speed values to densities of 20, 30, 40 60, and 70 veh/km. if the free flow speed is 110 km/hr and at the critical situation, is founded that are 110 vehicles on section of the road with length 2km, using the estimated values, draw a sketch showing the speed-flow-density relationships?Calculate the setback distance on a national highway having horizontal curve of radius 300 m and length of 180 m. Assume speed of 80 km/h and coefficient of friction of 0.35 and perception-reactions time of 2.5 seconds.A truck was travelling downhill at 51 kph. The brakes are suddenly applied and the truck stopped in a distance of 38 m. If the coefficient of friction between the tires and the road surface is 0.3, what is the grade of the road in percent (%)? Express your answer in 2 decimal places. Include the sign.
- Find the average speed that a passenger car should travel in a certain expressway if the spacing of the cars moving in the same lane is 50m, bumper to bumper. The volume of traffic at this instant is 2000 vehicles per hour.There are 11 vehicles observed in a 500 m section of a highway. The average time headway is 3 seconds. What is the value of the space mean speed in kph?While traveling at a constant speed a driver saw a road block 112 m away. He applied the brakes and the car decelerated uniformly at 6.4 m/s2. It stopped 5 m from the block. The driver’s PRT is 2.2 seconds. Sketch and calculate the initial constant speed of the vehicle in kph if;a. The roadway is levelb. The roadway grade is +10%c. The roadway grade is -10%
- Assume you are observing traffic in a single lane of a highway at a specific location. You measure the average headway and average spacing of passing vehicles as 3.2 seconds and 20 m, respectively. Calculate the flow, average speed, and density of the traffic stream in this lane. thank youCar 1 is at gasoline station for 10 minutes. The driver notices that car 2 passes at a speed of 40 mph. How long will it take for Car 1 to overtake Car 2 if it accelerated at 4 m/s?Determine the density of traffic on a highway for free flow speed of 80 km/hr and flow rate of 1200 pc/hr/ln