Figure 2-22.Sample equipment estimate (page 2).
When you prepare labor estimates, weigh the
various factors that affect the amount of labor required
to construct a project. These include weather
conditions during the construction period, skill and
experience of personnel who will perform the work,
time allotted for completing the job, size of the crew
to be used, accessibility of the site, and types of
material and equipment to be used.
Production Efficiency Guide Chart and Graph
The production efficiency guide chart (table 2-4)
lists eight elements that directly affect production.
Each production element is matched with three areas
for evaluation. Each element contains two or more
foreseen conditions to select from for the job in
question. Evaluate each production element at some
percentage between 25 and 100 according to your
analysis of the foreseen conditions. The average of the
eight evaluations is the overall production efficiency
percentage. Now, convert the percentage to a delay
factor, using the production efficiency graph (fig.
2-14), or by the Seabee average for production (67
percent) or by the average of the eight production
elements. The field or project supervisors are strongly
recommended to reevaluate the various production
elements and make the necessary adjustments to
man-day figures based on actual conditions at the
In reading the graph, note that the production
elements have been computed into percentages of
production efficiency, which are indicated at the
bottom of the graph. First, place a straightedge so that
it extends up vertically from the desired percentage,