The data shown below were obtained by time-lapse photography on a highway. Use regression analysis to fit these data to the Greenshields model and determine the following Speed (mi/h) Density (veh/mi) 16.7 25.7 35.2 43.1 54.4 56.1 (a) the mean free speed (in mi/h) mi/h (b) the jam density (in veh/mi) veh/mi (c) the capacity (in veh/h) veh/h 84 69 54 40 19 14 (d) the speed at maximum flow (in mi/h) mi/h
The data shown below were obtained by time-lapse photography on a highway. Use regression analysis to fit these data to the Greenshields model and determine the following Speed (mi/h) Density (veh/mi) 16.7 25.7 35.2 43.1 54.4 56.1 (a) the mean free speed (in mi/h) mi/h (b) the jam density (in veh/mi) veh/mi (c) the capacity (in veh/h) veh/h 84 69 54 40 19 14 (d) the speed at maximum flow (in mi/h) mi/h
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The data shown below were obtained by time-lapse photography on a highway. Use regression analysis to fit these data to the Greenshields model and determine the following.
| Speed (mi/h) | Density (veh/mi) |
|---|---|
| 16.7 | 84 |
| 25.7 | 69 |
| 35.2 | 54 |
| 43.1 | 40 |
| 54.4 | 19 |
| 56.1 | 14 |
(a)
the mean free speed (in mi/h)
mi/h
(b)
the jam density (in veh/mi)
veh/mi
(c)
the capacity (in veh/h)
veh/h
(d)
the speed at maximum flow (in mi/h)
mi/h
Transcribed Image Text:The data shown below were obtained by time-lapse photography on a highway. Use regression analysis to fit these data to the Greenshields model and determine the following.
Speed (mi/h) Density (veh/mi)
16.7
25.7
35.2
43.1
54.4
56.1
(a) the mean free speed (in mi/h)
mi/h
(b) the jam density (in veh/mi)
veh/mi
(c) the capacity (in veh/h)
veh/h
84
69
54
40
19
14
(d) the speed at maximum flow (in mi/h)
mi/h
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