Q2/ One vehicle is following another on a two lanes, two way highway at night, according to the rule of thumb which allow one car length of spacing per 10 km/hr of speed, if both vehicles are traveling of 100 km/hr and lead car crashes in to the rear of unlighted parked truck, at what speed will the rear vehicle hit the wreckage, assume the perception reaction time of 0.5 sec. and the coefficient of braking friction is 0.5,assume length of vehicle is 3.5

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: QUESTION 7 hat is the braking distance (ft) when the design speed is 65 mph, assuming the AASHTO…

A: Reaction time(t)= 2.5 sec Design speed V= 65mph Deceleration rate= 11.62 ft/ s2

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 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 2600 lb vehicle has a drag coefficient of 0.35 and a frontal area of 22 ft?. What is the minimum…

A:

Q: Cars are traveling on level terrain at 64 mph on a road with a coefficient o sion of 0.8. The driver…

A: Give data Velocity of car = 64 mph or miles/hr  Coefficient of adhesion = 0.8  Reaction time of…

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: Aloha! This question I'm stuck on in my class. COuld you help?   A driver traveling North on a…

A: Given data: Speed of vehicle v1 = 100 km/hr = 27.77 m/s Reaction time tr1 = 1 sec. Coefficient of…

Q: A 3500 lb vehicle is being designed with a drag coefficient of 0.4 and a frontal area of 50 ft2. If…

A: Given Data :             ρ=0.002378 slugs/ft2            C∘=0.4            G=3500 lb…

Q: he driver must slow down from 70 miles/hour to 60 miles/hour to through sharp turns on country…

A: Given data:  V1=70 miles/hour V2=60 miles/hour Warning sign for turn visible clear for a distance of…

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: What is the braking distance (ft) when the design speed is 65 mph, assuming the AASHTO recommended…

A:

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…

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.