The car is traveling at a speed of 77 mi/hr as it approaches point A. Beginning at A, the car decelerates at a constant 7.1 ft/sec² until it gets to point B, after which its constant rate of decrease of speed is 2.3 ft/sec as it rounds the interchange ramp. Determine the magnitude of the total car acceleration (a) just before it gets to B, (b) just after it passes B, and (c) at point C. 220 B E 372' Answers: (a) Just before B, a= ft/sec? (b) Just after B, a = ft/sec2 (c) At C, a = ft/sec2

Q: A car is traveling up a 1.5% grade at 65 mi/hr on good, wet pavement. The driver brakes to try to…

A: Given; Grade: 1.5% (or 0.015 as a decimal) Initial speed: 65 mi/hr Reaction time: 1.5 seconds…

Q: A truck travels along a straight, level road at the speed of 79ft/sec. when the driver is forced to…

A:

Q: an intersection with speed 45 mph. The road has a downhill grade of 1%. When the car is at a…

A: Using relation for stopping distance SSD=vt+v22gf±Gv=45mph=66ftsG=-1%=-0.01

Q: A car braked with a constant deceleration of 16 ft/sec^2, producing skid marks measuring 200 ft…

A: ASKED: To determine the speed of the car before the application of brakes.   Given, Constant…

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A: Weight/power ratioGradeDistanceTo find: Speed of the truck at the top of the hill.

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A:

Q: 3. Drivers must slow from 70 mph to 40 mph to negotiate a severe curve on a rural highway. A warning…

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Q: For the same intersection in Problem 2, left-turning vehicles in the north-bound approach must seek…

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Q: approach signal is divided into r = 74 seconds of effective red, followed by g = 16 seco ve green.…

A: given, cycle time, C = 90 sec effective red time, r = 74 sec effective green time = 16 sec rate of…

Q: e radius of cu wers limit their e lateral accele

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Q: The design speed of a multilane highway is 70 mi/h. Determine the following. Note: The term  a…

A: Step 1:Step 2:Step 3: Step 4:

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.