| 摘要 |
PURPOSE: To accurately calculate required days for works even in a construction work with a variable effective working rate, by inputting effective working rates of respective months to calculate the effective working rates at every calender day and adding these data day by day. CONSTITUTION: Every month effective working rate allotted for achievement of respective works is input in a CPU 10 by use of an inputting device 16 and the number of days during a plurality of prior and posterior days of the end of the prior month and the beginning of the posterior month of every month is set. The effective working rate during the plural days is calculated as the effective working rates of the prior and posterior months vary in a linear function and an effective working rate curve along calender days is prepared by the CPU 10. In this way, every day effective working rate in the calender days is calculated. The effective working rate data are input in a memory 11. The starting day for calculating a working schedule is designated on the calender days while making reference to calender days of a calender device 12 and the effective working rates corresponding to the date of calender days are added day by day to calculate a required number of days for a work. When the starting day for calculation of a schedule or the date for an increment is a holy-day, such a day is added to a required number of days for the work. |
