8. The following figure shows an example of an aerial photo taken of 500 ft of roadway. It shows vehicles traveling at constant speeds on a rural highway of two-lanes (one per direction). A researcher standing at the beginning of the section observed 3 vehicles passing during a period of 11 seconds. The velocities of each vehicle across the 500 ft were as 60 mph, 30 mph and 40 mph, respectively. Calculate the flow, density and space-mean-speed based on the schematic. 160' 60' 20¹ 20¹ 40 mph 30 mph B 500' 120' 20¹ 60 mph A 100' Direction of flow
8. The following figure shows an example of an aerial photo taken of 500 ft of roadway. It shows vehicles traveling at constant speeds on a rural highway of two-lanes (one per direction). A researcher standing at the beginning of the section observed 3 vehicles passing during a period of 11 seconds. The velocities of each vehicle across the 500 ft were as 60 mph, 30 mph and 40 mph, respectively. Calculate the flow, density and space-mean-speed based on the schematic. 160' 60' 20¹ 20¹ 40 mph 30 mph B 500' 120' 20¹ 60 mph A 100' Direction of flow
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Answer question 8
![7. When becomes possible to have a high density on a highway, but a flow of approximately 0 veh/hr?
8. The following figure shows an example of an aerial photo taken of 500 ft of roadway. It shows vehicles
traveling at constant speeds on a rural highway of two-lanes (one per direction). A researcher standing
at the beginning of the section observed 3 vehicles passing during a period of 11 seconds. The
velocities of each vehicle across the 500 ft were as 60 mph, 30 mph and 40 mph, respectively. Calculate
the flow, density and space-mean-speed based on the schematic.
160'
60'
20¹
20¹
120'
40 mph
30 mph
B
500'
20¹
60 mph
A
100'
Direction of flow](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb816de81-d091-4434-aa0d-8a250bb5db6b%2Fbfb69378-8302-4bd6-ac8a-dd0113ad831a%2Fb87cqqn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7. When becomes possible to have a high density on a highway, but a flow of approximately 0 veh/hr?
8. The following figure shows an example of an aerial photo taken of 500 ft of roadway. It shows vehicles
traveling at constant speeds on a rural highway of two-lanes (one per direction). A researcher standing
at the beginning of the section observed 3 vehicles passing during a period of 11 seconds. The
velocities of each vehicle across the 500 ft were as 60 mph, 30 mph and 40 mph, respectively. Calculate
the flow, density and space-mean-speed based on the schematic.
160'
60'
20¹
20¹
120'
40 mph
30 mph
B
500'
20¹
60 mph
A
100'
Direction of flow
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