Mean inventory data extraction time for 100 inventory elements, inputting to computer, and creation of inventory database including transfer to GIS (person-minutes)
45
45
45
76
80
78
82
77
80
72
76
77
84
82
75
Sum of mean collection, processing, and extraction times
83
85
81
87
92
92
One-time purchase of equipment (hardware, software, and peripherals, in dollars
— = 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
