A car is entering the freeway. The merge lane has a heading of 260°. The car...

A car is entering the freeway. The merge lane has a heading of 260°. The car has an inelastic collision with a truck that had a velocity of 80 km/h at 270°. The car had a mass of 1400 kg and a speed of 75 km/h. The mass of the truck was 1800 kg. What is the initial common velocity of the car and truck after the collision? Show all of your work

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genius_generous answered 2 years ago

Freeway highway analysis • six-lane freeway, three -lane in each direction • Lane width = 11...

Freeway highway analysis • six-lane freeway, three -lane in each direction • Lane width = 11 ft; Right-side lateral clearance = 4 ft • Peak hour direction demand volume = 2,500 veh/h • Traffic composition: 11% trucks and 6% RVs • PHF = 0.97, Level Terrain; 24 ramps in six miles segment • Commuter traffic Determine the level of service (LOS)

[HCM for Basic Freeway Segments] A four-lane freeway (two lanes in each direction) has an observed...

[HCM for Basic Freeway Segments] A four-lane freeway (two lanes in each direction) has an observed demand volume of 2400 veh/h (one direction) during the peak hour. The freeway is on rolling terrain and the traffic stream consists of passenger cars and trucks only. The peak-hour factor is 0.75 and the traffic is all commuters. If the peak 15-min demand flow rate under equivalent base conditions is estimated to be 2000 pc/h/ln, what is the percentage of trucks in this...

A six-lane freeway with three lanes in each direction is on a level terrain and has...

A six-lane freeway with three lanes in each direction is on a level terrain and has 11-ft lanes with a 4-ft right-side shoulder. The total ramp density is 2 ramps per mile. The directional peak-hour traffic volume is 5400 vehicles with a peak-hour factor of 0.95 and all familiar users. The traffic stream includes 5% trucks and another 5% buses and no recreational vehicles. The city has decided to ban all heavy vehicles from using the freeway during the peak...

[HCM for Basic Freeway Segments] A six-lane freeway (three lanes in each direction) operates at the...

[HCM for Basic Freeway Segments] A six-lane freeway (three lanes in each direction) operates at the maximum service flow rate (MSF) of LOS D conditions during the peak hour with an observed demand volume of 3500 veh/h (one direction). The free flow speed (FFS) of the freeway is estimated to be 65 mi/h. The freeway is on rolling terrain and the traffic stream consists of passenger cars and buses only. The PHF is 0.85 and the traffic is all commuters....

A six-lane freeway with three lanes in each direction has regular weekday users. The lanes are...

A six-lane freeway with three lanes in each direction has regular weekday users. The lanes are 12 feet wide, the right-side shoulder is 2 ft wide, and there are two ramps within 3 miles upstream and two ramps within 3 miles downstream of the segment midpoint. The highway is on rolling terrain with 12% large trucks and buses and 2% recreational vehicles. The peak hour factor is 0.85. Determine the maximum hourly volumes that can be sustained at LOS C...

A six-lane freeway (three lanes in each direction) operates at capacity during peak hour. It has...

A six-lane freeway (three lanes in each direction) operates at capacity during peak hour. It has 11-ft lanes, 4-ft right shoulders, and there are three ramps within three miles upstream of the segment midpoint and four ramps within three miles downstream of the segment midpoint. The freeway has an AADT of 60,000 veh/day. The traffic stream has 8% heavy vehicles, and it is on rolling terrain with a peak- hour factor of 0.85. It is known that 12% of the...

3-lane freeway reduces to 2 lanes total flow in section = 5000 veh/hr lane saturation flow...

3-lane freeway reduces to 2 lanes total flow in section = 5000 veh/hr lane saturation flow rate= 2400 veh/hr traffic density at A: 10veh/km/ln shockwabe speed Wab between A nad B = -10km/hr Find traffic density at B (immediately upstream of the lane reduction) and the stream flows at locations A (far upstream from lane reduction), B, and C (within the lane reduction)

Consider a freeway with two lanes and capacity of 2000 veh/h/lane, jam density of 60 veh/km/lane...

Consider a freeway with two lanes and capacity of 2000 veh/h/lane, jam density of 60 veh/km/lane and a triangular fundamental diagram. Traffic is moving with the flow of 3000 veh/h and the space mean speed of 100 km/h. At 10:00 a.m., a traffic crash occurs that blocks one lane for half an hour. Using shockwave analysis, answer the following questions. a. Draw the space-time diagram with shockwaves and traffic states (trajectories not needed). [2 marks] b. At time t =...

A six lane urban freeway (three lanes in each direction) in mountainous terrain has 10-ft lanes...

A six lane urban freeway (three lanes in each direction) in mountainous terrain has 10-ft lanes and obstructions 5 ft from the right edge. For every mile of freeway, there is one interchange. The traffic stream consists of mostly commuters with a peak hour factor of 0.84, peak hour volume of 2500 vehicles, and 4% recreational vehicles. What is the LOS? Assume base free flow speed of 70 mph

6-lane freeway (3 lanes in each direction) in level terrain has a current one-directional volume of...

6-lane freeway (3 lanes in each direction) in level terrain has a current one-directional volume of 5000 veh/h; it is estimated that in 3 years, volume will have increased to 5600 veh/h. The traffic mix includes 10% trucks. The free-flow speed has been measured at 70 mph and the PHF is 0.95. a) Determine the current LOS. b) Determine the LOS in 3 years. c) After the initial three years, traffic grows at 4% per year, when will capacity be...

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