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- Subject : Transportation engineering Give all right solutions. A free flow speed of 60 kph and a capacity pf 3600 vehicles per hour. If in a given hour 3344 vehicles were countered at a specified point along this highway, compute the following A) jam density (in veh/km and 3 decimals) B) space mean speed of these 3344 vehicles. (Kph and 3 decimals) C) density of the 3344 vehicles. (Veh/km and 3 decimals)1) SITUATION. On a specific westbound section of highway, studies show that the speed-density relationship is: It is known that the capacity is 4200 veh/hr and the jam density is 210 veh/km. .What is the density that would give this capacity 136.64 veh/km 417.79 veh/km 336.12 veh/km 215.67 veh/km 2) What is the space-mean speed of the traffic at capacity? A 20.22 kph 18.36 kph 30.74 kph 48.68 kph 3) 3. What is the free-flow speed? 41.78 kph 76.85 kph 39.52 kph D 22.57 kphQ3. On a specific westbound section of highway, studies show that the speed density is a non linear relationship and it is, u = uf[1- (k/k;)3.5] The capacity (maximum flow) of the highway is 3800 veh/h and the jam density kj is 140 veh/km. (a) What is the speed (space man speed) of traffic at capacity? What is the free flow speed?
- A portion of the extension of SLEX has a free flow speed of 60kph and a capacity of 3600 veh/hr. If in a given hour, 3344 vehicles were countered at a specified point along this highway, determine the traffic density of these 3344 vehicles.2cb) The average speed of a 1st group of vehicles over a road msegment is per 45 km/h and their flow is 1350 vehicles hour. The average speed of a 2nd group of vehicles over the same segment is 40 km/h and their flow is 1800 hour. Determine the maximum flow of the vehicles per whole traffic stream? Wat mumiyan to booge allThe following figure shows the Level of Service (LOS) criteria for a multilane highway segment. If the free flow speed is 45 mph and the analysis flow rate is 1800 passenger cars per hour per lane (pc/h/In). What is the actual speed and density of the traffic flow at this specific location? What is the LOs of the location? 70 free-flow Seed 60 mih 56 mi 50 mih 45 mih LOS A 60 50 40 30 20 pomit 45 400 800 1200 1600 2000 2400 Flow Rate (pc/h/in) (uju) paads eg-buasseg abeany
- Question A linear relationship is observed between speed and density on a certain section of a highway. The free flow speed is observation to be 80 km per hour and the jam density is estimated as 100 vehicles per km length. Based on the above relationship, the maximum flow expected on this section and the speed at the maximum flow will respectively beH.w Try only ten): 1. The flow is zero on the highway only if the density equals to zero. 2. Density is the number of vehicle passing during a given width of lane of roadway. 3. If an accident occure during the way, it could be say that it is uninterreputed flow. 4. Mobility for arterial road is grater than the mobility of local road. 5. 85 th percentile of spot speed cumulative curve represents the highway speed limit. 6. One of the most important of on street parking is mechanical garage. 7. As angle of parking increase, more accidents would be occure. 8. At jam density, density of flow is zero. 9. PHF of rural region is less than the PHF in urban region. 10.Stopping time delay occure ar intersection. 11.Future traffic includes only generated and developed traffic. 12.As the tunover duration of the parking increase, operation of the parking increases also.On a specific section of highway, the speed-density relationship is as bellow: 1.5 S = S, It is known that the capacity is 2000 pc/hr/In and the jam density is 175 pc/mi/In. What is the space-mean speed of the traffic at capacity, and what is the free-flow speed? Round your answers to the nearest
- with central reserve the current traffic in 2019 expressed by AADT is 3000 vehicle in both direction. the improved road with design life traffic 20 years will be opened to traffic in 2024. The estimated annual growth rate of traffic is 5%. 1000pcu/hr 12% f ADT 60% of total volume 16% of hourly volume Lane capacity K D Th Q1-B:1-How are travel time and delay studies used?5. A traffic accident occurred along the North Diversion road at 6:00 AM. The flow rate on the expressway at this time of day was 53 vehicles per min. The normal freeway capacity is 75 vehicles per minute but it was reduced to 21 vehicles per minute due to the traffic accident. The traffic was cleared by the MMDA after an hour minutes. A) Determine the max. length of the queue before the blockage was removed B) Determine the time that the vehicles waited for the long queue before the blockage was cleared C) What time was the queue cleared?Q/ Find the jam density for the section of road with normal flow (1200 veh/hr) and average space mean speed 60km/hr if you know that the maximum flow is 1800 ?veh/hr