What role does reaction time play in applying the brakes to your car in emergency situations? Assume your car is traveling at 100 kph when a pedestrian suddenly crosses the street in front of your car. How far will your car travel before you can apply the brakes? Show your solution.What is the likelihood of running over the pedestrian? (Assume that you can bring the car to a stop in 10 m once you step on the brakes when you are driving at 50 kph.)

Q: Derive the relationship between average headway, space mean speed, and average pacing. Compute the…

A: Average Headway (H) = 3 secondsAverage Spacing (S) = 50 feetTo find: the space mean speed (V) in…

Q: A car is traveling at a speed of 80 f/s when the brakes are suddenly applied, causing a constant…

A:

Q: Speed (mph) A car starts from rest an of 60 mph in 20 seconds during this period is con 20 minutes,…

A: The given figure can be divided into three parts as shown below. Time is given in seconds so speed…

Q: A moving car is traveling at 80 kph when the brakes are applied to it. The car still moves at a…

A: From the given data Speed V = 80 kmph = 80*5/18                 = 22.222 meter/sec Distance D = 35 m…

Q: Determine the total distance traveled by an automobile from the moment the driver observed the…

A:

Q: akes about 3 ss for a driver having 0.1%% alcohol in his system to do the same. If such drivers are…

A: Normal drivers : SSD=ut+u22a SSD=440.75+4422212SSD=35.195ft

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: speed of 35 m/s. If the brakes are applied and the speed of the car is reduced to 10 mls in 15 s,…

A: using kinematic equation

Q: Consider a bathtub on a luxury train. Before the train leaves the station, the bathtub is completely…

A: Acceleration, Depth of tub, Width of tub, Length of tub, To find: Amount of water spilled.

Q: Two drivers each have a reaction time of 2.5 seconds. One is obeying a 90 km/h speed limit, and the…

A: Reaction time of both the observer = 2.5 sec Velocity of car ( obeying speed ) = 90 km/h Velocity of…

Q: driver takes 3.2 seconds to react to a situation complex while driving at 55 miles/hour. How far the…

A:

Q: A vehicle is moving along a straight line having an initial speed of 10 m/s. It is experiencing a…

A: To find the distance travelled after three seconds

Q: A test driver’s perception-reaction time is being conducted on a special testing track with wet…

A: (1) Initial velocity of the car(2) Final velocity of the car(3) Visible distance(4) Coefficient of…

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.