1. Observers stationed at two sections XX and YY, 500 ft apart on a highway, record the arrival times of four vehicles as shown in the accompanying table. If the total time of observation at XX was 15 sec, determine (a) the time mean speed, (b) the space mean speed, and (c) the flow at section XX. Vehicle A B Time of Arrival Section XX To To + 3 sec To + 6 sec To + 12 sec Section YY To +7.58 sec To + 9.18 sec To + 12.36 sec To + 21.74 sec

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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1. Observers stationed at two sections XX and YY, 500 ft apart on a highway, record
the arrival times of four vehicles as shown in the accompanying table. If the total
time of observation at XX was 15 sec, determine (a) the time mean speed, (b) the
space mean speed, and (c) the flow at section XX.
Vehicle
A
B
C
Time of Arrival
Section XX
To
To + 3 sec
To + 6 sec
To + 12 sec
Section YY
To + 7.58 sec
To + 9.18 sec
To + 12.36 sec
To +21.74 sec
Transcribed Image Text:1. Observers stationed at two sections XX and YY, 500 ft apart on a highway, record the arrival times of four vehicles as shown in the accompanying table. If the total time of observation at XX was 15 sec, determine (a) the time mean speed, (b) the space mean speed, and (c) the flow at section XX. Vehicle A B C Time of Arrival Section XX To To + 3 sec To + 6 sec To + 12 sec Section YY To + 7.58 sec To + 9.18 sec To + 12.36 sec To +21.74 sec
Expert Solution
Step 1

Given:

L = 500 ft

T = 15 sec

Vehicle Section XX Section YY
A To To+7.58 sec
B To+3 sec To+9.18 sec
C To+6 sec To+12.36 sec
D To+12 sec To+21.74 sec
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