Table 3
Summary of Time and Cost of Data Collection by Different Methods
38 |
40 |
36 |
7 |
9 |
9 |
|
|
|
8 |
7 |
10 |
|
|
|
8 |
8 |
9 |
|
|
|
6 |
7 |
8 |
|
|
|
5* |
5* |
5* |
|
|
|
|
|
|
45 |
45 |
45 |
76 |
80 |
78 |
|
|
|
82 |
77 |
80 |
|
|
|
72 |
76 |
77 |
|
|
|
84 |
82 |
75 |
83 |
85 |
81 |
87 |
92 |
92 |
|
30,000† |
|
|
250,000 and above‡ |
|
= Not applicable
* = Approximately the same time for all four methods using vehicle systems
† = Manual method cost includes purchase of vehicle and a computer workstation
‡ = The cost of the methods employing vehicle systems depend on the number and type of sensors installed onboard and varies significantly
|