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[T] The following table provides hypothetical data regarding the level of service for a certain highway.
Highway Speed Range (mph) | Vehicles per Hour per Lane | Density Range (vehicles/ mi) |
>60 | < 600 | < 10 |
60-57 | 600-1000 | 10-20 |
57-54 | 1000-1500 | 20-30 |
54-46 | 1500-1900 | 30-45 |
46-30 | 1900-2100 | 45-70 |
<30 | Unstable | 70-200 |
Table 5.10
- Plot vehicles per hour per lane on the x-axis and highway speed on the y-axis.
For the next two exercises use the data in the following table, which displays bald eagle populations from 1963 to 2000 in the continental United States.
Year | Population of Breeding Pairs of Bald Eagles |
1963 | 487 |
1974 | 791 |
1981 | 1188 |
1986 | 1875 |
19921996 | 3749 |
5094 | |
2000 | 6471 |
Table 5.11 Population of Breeding Bald Eagle Pairs Source: http://www.fws.gov/Midwest/eagle/ population/chtofprs.html.
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