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Trains of a proposed transit line have a top speed of 80 mph, accelerate at a rate of 5.5 ft/s2 and decelerate at a rate of 4.4 ft/s2. The transportation agency would like to determine the maximum spacing of stations to allow trains to arrive no more than 5 minutes apart.1. Draw a time-space diagram depicting the above scenario2. Determine the acceleration and deceleration times and label them on the TSD. How much time will elapse as the train is traveling at maximum speed (assuming maximum spacing)?3. Determine the maximum station spacing
If the peak-hour factor is .90 and all of the drivers are regular users, what is the level of the service of this compound-grade freeway segment?
The casting has a mass of 3 Mg. Suspended in a vertical position and initially at rest, it is given an upward speed of V mm/s in 0.3s using a crane hook H. Determine the tension in cables AC and AB during this time interval if the acceleration is ..
Find the time for one complete cycle of this motion if the spring constant is 21 N/m. (Assume that once the pendulum ball hits the spring there is no effect due to the vertical movement of the ball.)
What difference does the tightening of bolt in the friction grip joint make to the load at first slip and the failure load.
Determine the COD, carbonaceous BOD, and nitrogenous oxygen demand of a 100 mg/L solution of urea (N2H4CO)
Rod AB is bent into the shape of a circular arc and is lodged between two pegs D and E. It supports a load P at end B. Neglecting friction and the weight of the rod, determine the distance c corresponding to equilibrium when a = 43mm and R = 143mm..
Whether the wall has adequate sliding resistance and whether the wall is safe against over-turning
A bullet is fired from a height of 150m at a velocity of 300kmph at an angle of 35 upward. Neglecting air resistance. Find: a) total time of flight b) horizontal range
Sketch a streamline, pathline, and streakline, For a given flow the velocity from time t=0 to t=5s was u=2 m/s, v=0. Then from t=5s to t=10s the velocity was u=+3 m/s, v=-4 m/s. A dye streak was started at t=0
compute normal and critical depths in a concrete culvert(n=0.015)with a diameter of 36in.and a bed slope of 0.002ft/ft if the design discharge is 15cfs.is the slope steep or mild?reap for S= 0.02ft/ft.
Light-Voice Controlling System. We are planning to design a new light-voice controlling system. The voices will basically coordinate the crossing of a road by blind people. Suppose the crossing will be operated by two coordinated systems
Set up a table showing curve elevations at the PVC, at the PVT, and at the half-station points along the curve. Compute the station and elevation of the curve turning point.
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