Q2: One lane of 2- lane carriage of highway is closed for repairs, the free flow speed in the 2- lane portion of highway is 60 km/ hr, the observation showed that the free flow speed in the bottleneck section is also 60 km/ hr. The space headway of vehicles in stationary condition is 12.5 m. If the traffic volume is 1600 veh/ hr. Find the following (assume linear relationship between speed and density). 1. The mean speed of the traffic immediatley before the bottleneck section. 2. The queue length of vehicles after 30 minutes from the beginning of repair operation.
Q2: One lane of 2- lane carriage of highway is closed for repairs, the free flow speed in the 2- lane portion of highway is 60 km/ hr, the observation showed that the free flow speed in the bottleneck section is also 60 km/ hr. The space headway of vehicles in stationary condition is 12.5 m. If the traffic volume is 1600 veh/ hr. Find the following (assume linear relationship between speed and density). 1. The mean speed of the traffic immediatley before the bottleneck section. 2. The queue length of vehicles after 30 minutes from the beginning of repair operation.
Chapter2: Loads On Structures
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Transcribed Image Text:Q2: One lane of 2- lane carriage of highway is closed for repairs, the free flow
speed in the 2- lane portion of highway is 60 km/ hr, the observation showed that
the free flow speed in the bottleneck section is also 60 km/ hr. The space
headway of vehicles in stationary condition is 12.5 m. If the traffic volume is 1600
veh/ hr. Find the following (assume linear relationship between speed and
density).
1. The mean speed of the traffic immediatley before the bottleneck section.
2. The queue length of vehicles after 30 minutes from the beginning of repair
operation.
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