3. Flow on a road is q1=1800veh/hr/lane, and density is kl=14.4 veh/km/lane. To reduce speeding on a section of highway, a police cruiser decides to implement a rolling roadblock, and to travel in the left lane at the speed limit (v2=88km/hr) for 10 km. This ensures that no overtaking is done by the vehicles in this platoon. After the police cruiser joins, the platoon density increases to 20 veh/km/lane and flow drops. Find: (a) How many vehicles will be in the platoon when the police car leaves the highway (b) How long it will take for the queue to dissipate

Q: You are designing an on-ramp that connects an intersection (controlled by a signal) and the highway.…

A: Given: To Design an on-ramp that connects an intersection and the highway. To Assumed to be 60mph…

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: 15. Traffic volume during a stable free-flowing condition is 600 veh/h with an average speed of 75…

A: The average speed of traffic under congested situation is 15 km/hr  Note: Please refer to the…

Q: A section of highway has a linear speed-density relationship. The capacity of the roadway is 3,751…

A: qmax=3751 vhru=40mphFree flow speed=2(u)=80mphso,qmax=vfkj43751 vhr=80(kj)4kj=187.55vm

Q: Q1 Fill in the blanks: 1. When the roadway capacity = 1000 pcu/hr and demand = 1500 pcu/hr, the…

A: 1. Volume when roadway capacity is limited and demand exceeds capacity:Understanding the Concept:…

Q: A section of highway has a speed-flow relationship of the form "q = au^2 + bu" It is known that at…

A:

Q: Two vehicles, one operated by a human and the other computer controlled, are traveling on a level…

A: Given,  Autonomous vehicle speed = 70 mph Frequency = 10 Hz  Reaction time of driver = 1.5 sec

Q: One driver is driving on a 3% upgrade roadway with an initial speed of 80 mph, assuming his…

A: G=3% upgradeInitial speed = 80 mph,Perception-reaction time = 2 secondsTo determine:(a) If the…

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

A:

Q: You are assigned to evaluate the level of service for a section of a that stretches along a level…

A: According to given data  You are assigned to evaluate the level of service for a section of a…

Q: What is the intersection sight distance (m) needed at a stop controlled intersection for a passenger…

A:

Q: The traffic volume at the north-south approach of an arterial road intersection is 720 veh/h and 25%…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What is the intersection sight distance (m) needed at a stop controlled intersection for a passenger…

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

Q: Average free flow speed and the jam density observed on a road stretch are 60 km/h and 120…

A: Given- Average free flow Vf=60 km/h, Jam density Kj=120 veh/km Maximum flow=?

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.