.
Weather Anticipation
Normal Weather Expectation
.
Setting a Non-Work Day in Primavera P6 Calendar
Nonworking days can be indicated in your calendar in Primavera to account for anticipated adverse weather
days.
.
Abnormal (Inclement) Weather Impact Tabulation and Calculations
How many weather days are owed from this example?
An adverse weather day can not be considered for the days in the red box above because the activities
were not impact by more than 50% of the work day.
.
Calendars
P6 allows the creation and assignment of calendars to each resource and each activity. These calendars
define the number of available work days and or work hours in each calendar day. It is also possible to
specify national holidays, an organizations holidays, project-specific work/non work days, and resource
vacation days. P6 uses the calendar assignments for scheduling and tracking activities. An activitys type
determines whether the activity uses the calendar of an assigned resource or its activity calendar.
Three calendar pools are defined: global, resource, and project. The global calendar pool contains calendars
that apply to all projects. The project calendar pool is a separate pool of calendars for each project. The
resource calendar pool can be a separate pool of calendars for each resource. It is possible to assign either
resource or global calendars to resources, and can assign either global or project calendars to activities.
The ability to link resource and project calendars can be linked to global calendars. Then, if changes are
made to a global calendar, the changes apply to all resource and project calendars that are linked to the
modified global calendar.
Calendar Definition
1. Choose ENTERPRISE, CALENDARS
.
Calendars (continued)
2. In the Calendars under the Project Calendar, select ADD to create a new calendar. Select Standard 5 Day
Workweek calendar. Make sure to switch to PROJECT mode when adding a calendar.
Select PROJECT when
adding a new calendar
.
Calendars (continued)
3. To Re-name click in the Calendar Name area or to Modify the 5 Day Workweek with Holidays -Training
select Modify and make any changes to work or non-work days as needed. Then select OK.
.
Calendars (continued)
4. Check to ensure that the following Holidays are included or taken out of the 5 DAY WORKWEEK calendar:
Confirm / Add 05/25/09 Memorial Day Confirm / Add 07/03/09 Independence Day (Celebrated) Confirm / Add 09/07/09 Labor Day Remove 10/12/09 Columbus Day Confirm / Add 11/11/09 Veterans Day Confirm / Add 11/26/09 Thanksgiving Day Add 11/27/09 Day after Thanksgiving Confirm / Add 12/25/09 Christmas -Federal Holiday Add 01/01/10 New Years Day- Federal Holiday Confirm / Add 01/18/10 Dr. Martin Luther King Day Confirm / Add 02/15/10 Presidents Day Confirm / Add 05/31/10 Memorial Day
Double click on a date to change it from Non-Work to Work, or highlight the date and click on the
appropriate button in the right pane.
.
Calendars (continued)
Weather Considerations
5. The contract requires that normal weather days be anticipated in the CPM. Assume that normally
Saturdays will be used as a make-up day. We will block out additional Wednesdays if there are not
enough Saturdays available in the month.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
6 6 5 8 6 6 7 5 3 5 5 5
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Calendars (continued)
Weather Considerations Continued Example:
The contract requires to anticipate seven (7) inclement weather days in July. Because there are potentially 5
makeup days (Saturdays) in July 2009, we will block-out 2 additional days (7/7, 7/14, and 7/21).
Remember to F9 at this point
Another way to represent weather in a calendar is to create a 6 Day work week (Saturdays) in the schedule.
To do this select the PROJECT button in the Calendar dialog box then select the ADD button.
Type in name of your new Calendar in the
Calendar Name box
.
Calendars (continued)
After renaming the calendar to 6 Day Work Week w/Holidays select the MODIFY button to create the 6 Day
Work Week Calendar. Select the WORKWEEK button at the lower right of the Project Calendar dialog box
(second graphic). This displays the Calendar Weekly Hours dialog box where modifying the days worked is
possible. In the SAT window place an 8 (for hours) which will open up all Saturdays.
Correctly re-named calendar
Select the Modify
Button to make
changes to your
new calendar
Select the
Workweek button
to modify the days
to be worked
Put an 8 in the
SAT window
.
Assign Calendars to Activities
1. Choose VIEW, COLUMNS
2. Choose GENERAL, select CALENDAR and select the Right Arrow, then click OK
.
Assign Calendars to Activities (continued)
3. Click in the Calendar Cell of C10000. Choose Display: Project Calendar. See graphic below.
4. Select the 6 Day Work Week w / Holidays calendar. See graphic below
Click the add button
once you have selected
the correct calendar
Click the drop down
box at the right of the
calendar column
.
Assign Calendars to Activities (continued)
5. Right-mouse click and select the FILL DOWN function to the remaining activities in the schedule (C10000
through and including C10090). See graphic below.
6. F9 or Schedule Button to calculate the schedule
The float values will change due to the extra time now in the schedule on those activities that have the 6 day
a week calendar.
Change the calendar BACK to the 5 Day Work Week with Holidays for all activities. Hint: Remember to
highlight and the Fill Down command
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