nat is the value of PCU (Passenger Car Unit) of the vehicle A using the following giver ngth of vehicle A = 5 m eed of vehicle A = 80 kmph nath of standard vehicle =25 m
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- Results of traffic flow studies on a highway indicate that the flow-density relationship can be described by the expression. Us q=uck - If speed and density observations give the data shown below, develop an appropriate expression for speed versus density for this highway. (Use the following as necessary: k. Assume u is in mi/h and k is in veh/mi. Do not include units in your answer.) Speed (mi/h) Density (veh/mi) 11 ufk² kj 57 53 45 39 28 21 18 density at maximum volume 21 22 39 60 70 86 97 Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of the maximum volume (in veh/h). 80 X Your response differs from the correct answer by more than 10%. Double check your calculations. veh/miResults of traffic flow studies on a highway indicate that the flow-density relationship can be described by the expression. Uf2 q= = Ufk - k₁ If speed and density observations give the data shown below, develop an appropriate expression for speed versus density for this highway. (Use the following as necessary: k. Assume u is in mi/h and k is in veh/mi. Do not include units in your answer.) Speed (mi/h) Density (veh/mi) us 57 54 45 39 27 20 17 16 26 42 55 73 87 98 Determine the density (in veh/mi) at which the maximum volume will occur as well as the value of the maximum volume (in veh/h). density at maximum volume maximum volume veh/mi veh/hExpress the following equation, the traffic density in veh/km when d is in m, in terms of number of vehicles per mile when d is in mi, ft, and yd. (Use the following as necessary: n, d.) 1,000n k = when d is in mi k = when d is in ft k = when d is in yd k =
- Part A Consider the car shown in (Figure 1). Suppose that y(x) = 24 (1- 100) m, where a is in m. Neglect Determine the maximum constant speed at which the 2-Mg car can travel over the crest of the hill at A without leaving the surface of the road. the size of the car in the calculation. Express your answer to three significant figures and include the appropriate units. HA Value Units v = Submit Request Answer Figure Provide Feedback Next > - y(x) A. 100 mTwo cars P and Q are moving in a racing track continuously for two hour. Assume that no other vehicles are using the track during this time. The expressions relating the distance travelled d (in km) and time t (in hour) for both the vehicles are given as P: d = 60t Q: d = 60t² Within the first one hour, the maximum space headway would beExpress the following equation, the traffic density in veh/km when d is in m, in terms of number of vehicles per mile when d is in mi, ft, and yd. (Use the following as necessary: n, d.) 1,000n d k = when d is in mi when d is in ft when d is in yd k = k = k = nd 5280nd 1760nd X X X
- A motorcyclist travels along a straight road. His velocity is shown in the v-t graph. A) Construct the s-t graph B) What is the total distance travelled?5) A sports car is driving along a winding road designed by a transportation engineer. The vehicle accelerates from rest at a rate of 8 m/s² for 5 seconds, then maintains a constant speed of 60 m/s for 10 seconds, and finally decelerates at a rate of -4 m/s2 until it comes to a stop. Calculate the total distance traveled by the sports car. [Note that this problem uses SI units.]A highway has directional arrival rate of 30 [veh/min] and capacity of 40 [veh/min]. At time t = 0 [min], an accident occurs and stops all traffic. At t = 20 [min], the accident is cleared, and the highway returns to its original capacity. What are the values of lambda (1) and mu (µ) at t= 30? a b At what time does the queue clear? Present your answer to the nearest minute.
- Consider the following diagram of one-way roads, with indicated traffic flow on some roads. Compute the values of x1, x2, x3, x4, X5, X6. 100 cars/h X2 A 80 cars/h X1 50 cars/h X6 B ts ---- →- 120 cars/h D 40 cars/h 140 cars/h Answer the following questions. Keep in mind that traffic flow on each road has to be greater or equal to 0. a) What is the maximal possible traffic flow on the road connecting intersections E and A? Enter your answer to part a) here: b) Suppose that the road connecting intersections E and A gets closed. Assuming that all measurements of traffic flow indicated on the picture above stay unchanged, what is the minimal possible traffic flow on the road connecting intersections D and C in such case? Enter your answer to part b) here:A car moves according to the equation s = ut +1/2 at2, where s is the distance in meters , u is the initial velocity in m/sec, a is the acceleration in m/sec2 and t is the time in sec. Given that when t = 3 sec, s = 96.25 m and when t = 10 sec, s = 291. 667 m, determine the following: The value of u in kph The value of a in kph/sec The value of s in m when t = 15 secThe primary elements of traffic flow are flow, density, and speed. Discuss with illustration the relationships between the three elements of a traffic flow. (100 words) equirements: 1. The primary elements of traffic flow are flow, density, and speed. Discuss with illustration the relationships between the three elements of a traffic flow. (100 words)