The car is traveling at 48 km/h when the traffic light 90 m ahead turns yellow. The driver takes one second to react before he applies the brakes. (a) After he applies the brakes, what constant rate of deceleration will cause the car to come to a stop just as it reached the light? (b) How long does it take the car to travel the 90 m?

Q: 1. On a two lane and two-way roadway vehicle-A is travelling at the design speed of 90 km/h.…

A:

Q: Car Ais traveling at a location where the speed limit is 100 km/h. The police officer in car…

A: Given : For Car A : VOA = 130 km/h = 36.11 m/secVFA = 100 km/h = 27.78 m/sectAF = 4.2 sec For Car P…

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 car is driving at 75 mph down a 4.0% grade on poor, wet pavement. The car's braking efficiency is…

A: velocity of car(v)=75mph=gradient of road(n)=4%=0.04(downward)breaking efficiencydistance of…

Q: One vehicle is following another on a two-lane, two-way highway at night according to the…

A: Given, V = 60 mph  L = 20 ft  t = 1.25 sec   NOTE : As per guidelines, first question is required to…

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

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Q: Determine the braking distance downhill and the percent grade of the highway at that section of the…

A: Velocity (V)= 55 mph Coefficient of friction = 0.30lets say breaking distance when driving uphill =…

Q: A highway curve of 120 m radius is banked to give equal wheel reactions for a speed of 48 kph. If…

A: The given data is as follows: Radius of curve=120 mSpeed to give equal wheel reactions=48…

Q: A distracted driver is travelling at 65mph on a roadway with an upgrade of 4% before he finally…

A: Given, Initial speed, Vi = 65 mph or 95.33 ft/s Grade, G = 4% or 0.04 Rolling resistance factor, frl…

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 driver travelling at 50mph sees a hazard (boulder) at a certain distance ahead. The driver then…

A: Given Data: The initial velocity is u=50 mph The deceleration is a=10 m/s2 The PIEV time is t=2 s…

Q: In traveling a distance of 4.2 km between points A and D, a car is driven at 104 km/h from A to B…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The car is traveling at a speed of 75 mi/hr as it approaches point A. Beginning at A, the car…

A: Speed = 75 mil/hrdecelerates = 7.4 ft/s2 (upto B)                      =3.7 ft/s2   (after B)

Q: A driver is traveling 70 mi/hr on a road with a -2% downgrade. The driver's vehicle has a braking…

A: speed V = 70 mi/hr Grade G = -2% braking efficiency = 90% Stopping sight distance = 500 ft lateral…

Q: Car A is traveling at a constant speed va - 127 km/h at a location where the speed limit is 100…

A:

Q: A motorcylce waits at rest. 8 mins later, the driver notices a car passes with a constant speed of…

A: Here length of car is not given in the question so, we have to avoid the length of car, i.s. length…

Q: Initially, the car travels along a straight road with a speed of 35m/s. If the brakes are applied…

A:

Q: A driver on a level two-lane highway observes a truck completely blocking the highway. The driver…

A: Longitudinal friction(f) = 0.45 Distance at which vehicle stopped from truck = 10m The initial speed…

Q: Determine the safe stopping speed distance for a design speed of 14 m/s for two- way traffic on a…

A: Given data- Design speed V=14 m/s, 2-way traffic on 2 lane road, Coefficient of friction f=0.28,…

Q: descending a 10% grade at a speed of 75 mi/h, David notices a large object in the roadway ahead of…

A: Using the equation D=VT [Basic equation to find the distance ] here ,V=velocity=75mi/h…

Q: A driver traveling at 50 mph sees a wall at a certain distance ahead. The driver applies the brakes…

A:

Q: Calculate the stopping distance on a highway at an ascending gradient of 2% for a design speed of 90…

A:

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

A:

Q: Q-A vehicle is moving on a road of grade +4% at a speed of 20 m/s. Consider the coefficient of…

A: Given- upward gradient G=+4%f=0.46g=10 m/s2Initial speed v1=20 m/sfinal speed v2=10 m/sIt is…

Q: Calculate the minimum sight distance required to avoid a head-on collision of two cars approaching…

A: Given :

Q: Q4) A driver is travelling at 45 mph. He is 60m from a traffic light when he sees turn yellow. His…

A: Speed of the car = 45 mph reaction time = 0.5 s the distance of traffic light and vehicle = 60 m

Q: The rated speed of a highway curve of 80 m radius is 30 mph. If the coefficient of friction between…

A:

Q: Refer to the following illustration; veh#2 is driving with the speed of 60mph, following veh#1 whose…

A: Speed of vehicle 1, Speed of vehicle 2, Distance, Level grade.To find: Minimum distance between two…

Q: The car is traveling at a speed of 75 mi/hr as it approaches point A. Beginning at A, the car…

A:

Q: The car is traveling at 48 km/h when the traffic light 90 m ahead turns yellow. The driver 1. takes…

A:

Q: A van is driven at 60 km/h and is brought to a full stop with constant deceleration in 7seconds. If…

A:

Q: Car A is traveling at a location where the speed limit is 100 km/h. The police officer in car P…

A: VA = 127km/h  VP = 0

Q: car is traveling up a 3% grade, with the speed of 85mph, on a road that has good, wet pavement. A…

A: Gradient = +3% Initial speed, vo = 85mph = [85 x 1.467] ft/sec Total distance covered in brake…

Q: The car is traveling at a speed of 60 mi/hr as it approaches point A. Beginning at A, the car…

A:

Q: Car A is traveling at a constant speed vA = 125 km/h at a location where the speed limit is 100…

A:

Q: Car A is traveling at a location where the speed limit is 100 km/h. The police officer in car…

A: Given: For driver: vAi=126 Kmh=35 msvAf=147 Kmh=40.83 mstA=4.4 s For Police officer: vpi=0 Kmh=0…

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.