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Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.
Correct answer is '6'. Can you explain this answer?
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Traffic volume count has been collected on a 2 lane road section which...
Directional design hourly volume (DDHV)
DDHV = AADT × K × D
where, D = Volume proportion in major direction, K = The proportion of AADT occuring in peak hour.
DDHV = 12270 × 0.6 × K [∵ K Assumed 1]
= 7362
fHV = Heavy veh. adjustment factor = 1 for car
fP = Road user familarity adjustment factor
= 1 for regular commuters
As per HCM,
Number of lanes required,
Number of extra lanes = 8 – 2 = 6 lanes
DDHV = AADT × K × D
where, D = Volume proportion in major direction, K = The proportion of AADT occuring in peak hour.
DDHV = 12270 × 0.6 × K [∵ K Assumed 1]
= 7362
fHV = Heavy veh. adjustment factor = 1 for car
fP = Road user familarity adjustment factor
= 1 for regular commuters
As per HCM,
Number of lanes required,
Number of extra lanes = 8 – 2 = 6 lanes
Most Upvoted Answer
Traffic volume count has been collected on a 2 lane road section which...
C. In order to determine the required number of lanes for the upgraded road section, we need to calculate the design hourly volume (DHV) based on the observed maximum service flow rate.
DHV = Maximum service flow rate per lane * Number of lanes
DHV = 1280 veh/h * 2 lanes
DHV = 2560 veh/h
Therefore, the design hourly volume for the upgraded road section is 2560 vehicles per hour.
To determine the number of lanes required, we can compare the DHV with the capacity of a single lane.
If the DHV is less than or equal to the capacity of a single lane, then only one lane is required. In this case, the DHV is greater than the capacity of a single lane (1280 veh/h), so we need more than one lane.
To find the number of lanes required, we divide the DHV by the capacity of a single lane.
Number of lanes required = DHV / Maximum service flow rate per lane
Number of lanes required = 2560 veh/h / 1280 veh/h
Number of lanes required = 2 lanes
Therefore, the upgraded road section should have 2 lanes to accommodate the observed traffic flow condition.
DHV = Maximum service flow rate per lane * Number of lanes
DHV = 1280 veh/h * 2 lanes
DHV = 2560 veh/h
Therefore, the design hourly volume for the upgraded road section is 2560 vehicles per hour.
To determine the number of lanes required, we can compare the DHV with the capacity of a single lane.
If the DHV is less than or equal to the capacity of a single lane, then only one lane is required. In this case, the DHV is greater than the capacity of a single lane (1280 veh/h), so we need more than one lane.
To find the number of lanes required, we divide the DHV by the capacity of a single lane.
Number of lanes required = DHV / Maximum service flow rate per lane
Number of lanes required = 2560 veh/h / 1280 veh/h
Number of lanes required = 2 lanes
Therefore, the upgraded road section should have 2 lanes to accommodate the observed traffic flow condition.
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Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer?
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Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer?.
Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer?.
Solutions for Traffic volume count has been collected on a 2 lane road section which needs upgradation due to severe traffic flow condition. Maximum service flow rate per lane is observed as 1280 veh/h at level of service ‘C’. The Peak Hour Factor is reported as 0.78125. Historical traffic volume count provides Annual Average Daily Traffic as 122270 veh/day. Directional split of the traffic flow is observed to be 60 : 40. Assuming that traffic stream consists of ‘All Cars’ and all drivers are ‘Regular Commuters’, the number of extra lane(s) (round off to the next higher integer) to be provide, is ________.Correct answer is '6'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE.
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