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OCR for page 17
9
1
2
3
6 5 7
4
Exhibit 2. DIETT query page.
numbers (4 and 1 for barge, and 500 and 100 for rail) are 2.2.1 The INPUTS Worksheet
automatically entered by the program but can and should
be modified later to reflect the correct average daily barge MS Excel is activated by pressing the "Next" button (see
and rail traffic. These adjustments can be readily made in Exhibit 2) or by double clicking on the filename created in the
the spreadsheet application.3 c:\program files\saic\diett\\spreadsheets directory from Win-
· Some calculations may take several minutes. dows Explorer. The INPUTS worksheet shown in Exhibit 4
will appear.
The INPUTS worksheet is designed to generate prioritized
2.2 DIETT Spreadsheet--MS Excel lists of TCPs by changing default values for key parameters
MS Excel is used to do the following:
· Modify default values for key transportation and economic
parameters,
· Model and sort on transportation impacts of detours and
delays,
· Model and sort on commerce-related economic impacts,
· Accommodate "refinements," and
· Generate the output of DIETT.
3The detour distance for barges, 1 mile, is provided only as a placeholder. When a
waterway is obstructed, barge traffic is generally not rerouted; rather, barges wait
until the waterway is navigable. For barges, DIETT uses the time delay as the cost
variable. In places with good canal networks, rerouting of waterway traffic may be
possible. For such places, manual adjustments may be made in the spreadsheet. Exhibit 3. Scoring method box in DIETT.
