A basic freeway segment is located in an urban area and has three lanes in each direction. The traffic counts indicate the traffic volume of 4500 vehicles during the analysis hour, with the highest 15-minute volume of 1250 vehicles. The freeway section has a 2% grade, which is 0.375 miles long. The traffic stream includes about 15% heavy vehicles, consisting of about 50% single-unit trucks and buses, and 50% tractor-trailers. The average vehicle speed under the described traffic conditions is 60 mph. Calculate the analysis flow rate (in pc/h/In) and determine level of service (LOS) for the given traffic conditions. (Write the answer for the LOS in the box below).
A basic freeway segment is located in an urban area and has three lanes in each direction. The traffic counts indicate the traffic volume of 4500 vehicles during the analysis hour, with the highest 15-minute volume of 1250 vehicles. The freeway section has a 2% grade, which is 0.375 miles long. The traffic stream includes about 15% heavy vehicles, consisting of about 50% single-unit trucks and buses, and 50% tractor-trailers. The average vehicle speed under the described traffic conditions is 60 mph. Calculate the analysis flow rate (in pc/h/In) and determine level of service (LOS) for the given traffic conditions. (Write the answer for the LOS in the box below).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A basic freeway segment is located in an urban area and has three lanes in each direction. The
traffic counts indicate the traffic volume of 4500 vehicles during the analysis hour, with the highest
15-minute volume of 1250 vehicles. The freeway section has a 2% grade, which is 0.375 miles
long. The traffic stream includes about 15% heavy vehicles, consisting of about 50% single-unit
trucks and buses, and 50% tractor-trailers. The average vehicle speed under the described traffic
conditions is 60 mph.
Calculate the analysis flow rate (in pc/h/In) and determine level of service (LOS) for the given
traffic conditions.
(Write the answer for the LOS in the box below).
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