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#1
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I will try to explain clearly what I am trying to accomplish. I hope this
makes sense. I work in the transportation Industry and have the dubious pleasure of designing a spreadsheet, which may be outside of my skill level. The Highway Traffic Act in Ontario, Canada stipulates that a truck or bus driver is restricted to the following hours of work: A driver may not drive a truck or a bus after being on duty for, a) 60 hours in 7 consecutive days, or b) 70 hours in 8 consecutive days, or c) 120 hours in 14 consecutive days. I have drivers names and their assigned work hours in a separate table and I can bring the regular hours into the worksheet using a lookup function. What I need is a way to track and warn me if an operator exceeds the allowable hours in any 7, 8, or 14 day period. The work periods are not static. To put it another way, the drivers are always working the 7th, 8th or 14th day. As an example; A driver starts work on Monday, before he reaches Sunday he has accumulated 60 hours and must not continue to work during the remainder of this 7 day stretch so he is forced to take Sunday off. He returns to work on Monday. His seven-day stretch does not start over. He must now calculate the hours worked from the previous Tuesday to determine how many hours he is allowed to work. Below is a formula I received from a gifted Excel professional but it does not quite work. It is my fault for not making my problem clear enough. This formula has made me re-think my strategy and I am now asking for assistance based on this new format. I think this formula could work with a few modifications. I have decided to take the sound advise of using one spreadsheet instead of several with a few additions. I would like to create a template and use the file for each driver who works extra hours. In A1 I would type a drivers name, which would return values via a lookup table to represent a scheduled set of hours over a 12 week period. These hours would be imported via the lookup into B3:B??. Each workday would be listed by date from A3:A??. Then the formula below would be used for the calculation and the Conditional format command would warn me of any violations. The regular scheduled hours for the driver would occupy the dates for the entire 12 weeks. Days off would be blank. I would insert another column or columns that the extra work could be enter in and column B3:B?? would contain a nested formula to return this value. Column C3:C??, D3:D??, E3:E?? respectively would be used to hold the formula below. I have tried to modify it but it will not work for me. Any help would be appreciated. Thank you in advance, Martin Perhaps you could store all the data on the same sheet. Then, keep a running total per limit per driver. For example, with dates in column A, names in column B, and hours in column C, in cells D1:F1, enter the hour limits (60,70,120). In cells D3:F3, enter the consecutive days (7,8,14) In cell D4 enter: =SUMPRODUCT(--($A$4:$A4=$A4-D$3-1),--($B$4:$B4=$B4),--($C$4:$C4)) Copy this formula across to column F, and down to the last row of data. Use conditional formatting to highlight the cells that are over the limit in row 1. A pivot table could summarize the data by week. There's a sample file he http://www.contextures.com/excelfiles.html Under 'Conditional Formatting', look for 'Highlight Amounts Over Limit' |
#2
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Martin,
With dates in column A, starting in row 3, and hours in column B, starting in row 3. Enter 60, 70, 120 in C1, D1, and E1, and enter 7, 8, 14 in C2, D2, and E2. Then enter this formula in C3: =SUM(OFFSET($B3,MAX(-(ROW($B3)-1),-(C$2-1)),0,MIN(ROW($B3),C$2),1))C$1 Copy to D3:E3, then copy C3:E3 down as far as you need. This formula will return TRUE if they are scheduled to be on duty for beyond the restrictions. You could use similar formulas for conditional formatting: three conditions - just enough. Also, you could conditionally format columns A and B to turn red when any of these values is TRUE. HTH, Bernie MS Excel MVP "Trying to excel in life but need help" oft.com wrote in message ... I will try to explain clearly what I am trying to accomplish. I hope this makes sense. I work in the transportation Industry and have the dubious pleasure of designing a spreadsheet, which may be outside of my skill level. The Highway Traffic Act in Ontario, Canada stipulates that a truck or bus driver is restricted to the following hours of work: A driver may not drive a truck or a bus after being on duty for, a) 60 hours in 7 consecutive days, or b) 70 hours in 8 consecutive days, or c) 120 hours in 14 consecutive days. I have driver's names and their assigned work hours in a separate table and I can bring the regular hours into the worksheet using a lookup function. What I need is a way to track and warn me if an operator exceeds the allowable hours in any 7, 8, or 14 day period. The work periods are not static. To put it another way, the drivers are always working the 7th, 8th or 14th day. As an example; A driver starts work on Monday, before he reaches Sunday he has accumulated 60 hours and must not continue to work during the remainder of this 7 day stretch so he is forced to take Sunday off. He returns to work on Monday. His seven-day stretch does not start over. He must now calculate the hours worked from the previous Tuesday to determine how many hours he is allowed to work. Below is a formula I received from a gifted Excel professional but it does not quite work. It is my fault for not making my problem clear enough. This formula has made me re-think my strategy and I am now asking for assistance based on this new format. I think this formula could work with a few modifications. I have decided to take the sound advise of using one spreadsheet instead of several with a few additions. I would like to create a template and use the file for each driver who works extra hours. In A1 I would type a drivers name, which would return values via a lookup table to represent a scheduled set of hours over a 12 week period. These hours would be imported via the lookup into B3:B??. Each workday would be listed by date from A3:A??. Then the formula below would be used for the calculation and the Conditional format command would warn me of any violations. The regular scheduled hours for the driver would occupy the dates for the entire 12 weeks. Days off would be blank. I would insert another column or columns that the extra work could be enter in and column B3:B?? would contain a nested formula to return this value. Column C3:C??, D3:D??, E3:E?? respectively would be used to hold the formula below. I have tried to modify it but it will not work for me. Any help would be appreciated. Thank you in advance, Martin Perhaps you could store all the data on the same sheet. Then, keep a running total per limit per driver. For example, with dates in column A, names in column B, and hours in column C, in cells D1:F1, enter the hour limits (60,70,120). In cells D3:F3, enter the consecutive days (7,8,14) In cell D4 enter: =SUMPRODUCT(--($A$4:$A4=$A4-D$3-1),--($B$4:$B4=$B4),--($C$4:$C4)) Copy this formula across to column F, and down to the last row of data. Use conditional formatting to highlight the cells that are over the limit in row 1. A pivot table could summarize the data by week. There's a sample file he http://www.contextures.com/excelfiles.html Under 'Conditional Formatting', look for 'Highlight Amounts Over Limit' |
#3
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Hi Bernie,
Thanks for the formula. I am running into the same problem with this one. Perhaps a modification? When I enter hours in B3 to B8 that total more than 60 then the true value works. However if the driver has no hours for B9 as the restriction suggests then when I enter hours for B10 I still get a true value as the formula is totaling hours from B3 and it should total hours from B4 in order for the calculation to be accurate. That is the driver is allowed to work a maximum of 60 hours in 7 days. If he max's his hours in 5 days ( B3:B7)then he can't work the next 2 (B8:B9). When he returns to work on the next day (B10), his hours should be calculated from (B4:B10) and so on. Rows D & E will have similar calculations based on their restrictions. Or - Am I doing something wrong? This is along the line of what I wanted. Thanks Martin "Bernie Deitrick" wrote: Martin, With dates in column A, starting in row 3, and hours in column B, starting in row 3. Enter 60, 70, 120 in C1, D1, and E1, and enter 7, 8, 14 in C2, D2, and E2. Then enter this formula in C3: =SUM(OFFSET($B3,MAX(-(ROW($B3)-1),-(C$2-1)),0,MIN(ROW($B3),C$2),1))C$1 Copy to D3:E3, then copy C3:E3 down as far as you need. This formula will return TRUE if they are scheduled to be on duty for beyond the restrictions. You could use similar formulas for conditional formatting: three conditions - just enough. Also, you could conditionally format columns A and B to turn red when any of these values is TRUE. HTH, Bernie MS Excel MVP "Trying to excel in life but need help" oft.com wrote in message ... I will try to explain clearly what I am trying to accomplish. I hope this makes sense. I work in the transportation Industry and have the dubious pleasure of designing a spreadsheet, which may be outside of my skill level. The Highway Traffic Act in Ontario, Canada stipulates that a truck or bus driver is restricted to the following hours of work: A driver may not drive a truck or a bus after being on duty for, a) 60 hours in 7 consecutive days, or b) 70 hours in 8 consecutive days, or c) 120 hours in 14 consecutive days. I have driver's names and their assigned work hours in a separate table and I can bring the regular hours into the worksheet using a lookup function. What I need is a way to track and warn me if an operator exceeds the allowable hours in any 7, 8, or 14 day period. The work periods are not static. To put it another way, the drivers are always working the 7th, 8th or 14th day. As an example; A driver starts work on Monday, before he reaches Sunday he has accumulated 60 hours and must not continue to work during the remainder of this 7 day stretch so he is forced to take Sunday off. He returns to work on Monday. His seven-day stretch does not start over. He must now calculate the hours worked from the previous Tuesday to determine how many hours he is allowed to work. Below is a formula I received from a gifted Excel professional but it does not quite work. It is my fault for not making my problem clear enough. This formula has made me re-think my strategy and I am now asking for assistance based on this new format. I think this formula could work with a few modifications. I have decided to take the sound advise of using one spreadsheet instead of several with a few additions. I would like to create a template and use the file for each driver who works extra hours. In A1 I would type a drivers name, which would return values via a lookup table to represent a scheduled set of hours over a 12 week period. These hours would be imported via the lookup into B3:B??. Each workday would be listed by date from A3:A??. Then the formula below would be used for the calculation and the Conditional format command would warn me of any violations. The regular scheduled hours for the driver would occupy the dates for the entire 12 weeks. Days off would be blank. I would insert another column or columns that the extra work could be enter in and column B3:B?? would contain a nested formula to return this value. Column C3:C??, D3:D??, E3:E?? respectively would be used to hold the formula below. I have tried to modify it but it will not work for me. Any help would be appreciated. Thank you in advance, Martin Perhaps you could store all the data on the same sheet. Then, keep a running total per limit per driver. For example, with dates in column A, names in column B, and hours in column C, in cells D1:F1, enter the hour limits (60,70,120). In cells D3:F3, enter the consecutive days (7,8,14) In cell D4 enter: =SUMPRODUCT(--($A$4:$A4=$A4-D$3-1),--($B$4:$B4=$B4),--($C$4:$C4)) Copy this formula across to column F, and down to the last row of data. Use conditional formatting to highlight the cells that are over the limit in row 1. A pivot table could summarize the data by week. There's a sample file he http://www.contextures.com/excelfiles.html Under 'Conditional Formatting', look for 'Highlight Amounts Over Limit' |
#4
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Martin,
I think you are doing something wrong. I will send you an example workbook that works as you described. Contact me or post your email address. HTH, Bernie MS Excel MVP "Trying to excel in life but need help" oft.com wrote in message ... Hi Bernie, Thanks for the formula. I am running into the same problem with this one. Perhaps a modification? When I enter hours in B3 to B8 that total more than 60 then the true value works. However if the driver has no hours for B9 as the restriction suggests then when I enter hours for B10 I still get a true value as the formula is totaling hours from B3 and it should total hours from B4 in order for the calculation to be accurate. That is the driver is allowed to work a maximum of 60 hours in 7 days. If he max's his hours in 5 days ( B3:B7)then he can't work the next 2 (B8:B9). When he returns to work on the next day (B10), his hours should be calculated from (B4:B10) and so on. Rows D & E will have similar calculations based on their restrictions. Or - Am I doing something wrong? This is along the line of what I wanted. Thanks Martin "Bernie Deitrick" wrote: Martin, With dates in column A, starting in row 3, and hours in column B, starting in row 3. Enter 60, 70, 120 in C1, D1, and E1, and enter 7, 8, 14 in C2, D2, and E2. Then enter this formula in C3: =SUM(OFFSET($B3,MAX(-(ROW($B3)-1),-(C$2-1)),0,MIN(ROW($B3),C$2),1))C$1 Copy to D3:E3, then copy C3:E3 down as far as you need. This formula will return TRUE if they are scheduled to be on duty for beyond the restrictions. You could use similar formulas for conditional formatting: three conditions - just enough. Also, you could conditionally format columns A and B to turn red when any of these values is TRUE. HTH, Bernie MS Excel MVP "Trying to excel in life but need help" oft.com wrote in message ... I will try to explain clearly what I am trying to accomplish. I hope this makes sense. I work in the transportation Industry and have the dubious pleasure of designing a spreadsheet, which may be outside of my skill level. The Highway Traffic Act in Ontario, Canada stipulates that a truck or bus driver is restricted to the following hours of work: A driver may not drive a truck or a bus after being on duty for, a) 60 hours in 7 consecutive days, or b) 70 hours in 8 consecutive days, or c) 120 hours in 14 consecutive days. I have driver's names and their assigned work hours in a separate table and I can bring the regular hours into the worksheet using a lookup function. What I need is a way to track and warn me if an operator exceeds the allowable hours in any 7, 8, or 14 day period. The work periods are not static. To put it another way, the drivers are always working the 7th, 8th or 14th day. As an example; A driver starts work on Monday, before he reaches Sunday he has accumulated 60 hours and must not continue to work during the remainder of this 7 day stretch so he is forced to take Sunday off. He returns to work on Monday. His seven-day stretch does not start over. He must now calculate the hours worked from the previous Tuesday to determine how many hours he is allowed to work. Below is a formula I received from a gifted Excel professional but it does not quite work. It is my fault for not making my problem clear enough. This formula has made me re-think my strategy and I am now asking for assistance based on this new format. I think this formula could work with a few modifications. I have decided to take the sound advise of using one spreadsheet instead of several with a few additions. I would like to create a template and use the file for each driver who works extra hours. In A1 I would type a drivers name, which would return values via a lookup table to represent a scheduled set of hours over a 12 week period. These hours would be imported via the lookup into B3:B??. Each workday would be listed by date from A3:A??. Then the formula below would be used for the calculation and the Conditional format command would warn me of any violations. The regular scheduled hours for the driver would occupy the dates for the entire 12 weeks. Days off would be blank. I would insert another column or columns that the extra work could be enter in and column B3:B?? would contain a nested formula to return this value. Column C3:C??, D3:D??, E3:E?? respectively would be used to hold the formula below. I have tried to modify it but it will not work for me. Any help would be appreciated. Thank you in advance, Martin Perhaps you could store all the data on the same sheet. Then, keep a running total per limit per driver. For example, with dates in column A, names in column B, and hours in column C, in cells D1:F1, enter the hour limits (60,70,120). In cells D3:F3, enter the consecutive days (7,8,14) In cell D4 enter: =SUMPRODUCT(--($A$4:$A4=$A4-D$3-1),--($B$4:$B4=$B4),--($C$4:$C4)) Copy this formula across to column F, and down to the last row of data. Use conditional formatting to highlight the cells that are over the limit in row 1. A pivot table could summarize the data by week. There's a sample file he http://www.contextures.com/excelfiles.html Under 'Conditional Formatting', look for 'Highlight Amounts Over Limit' |
#6
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Trying to excel in life but need help wrote...
.... The Highway Traffic Act in Ontario, Canada stipulates that a truck or bus driver is restricted to the following hours of work: A driver may not drive a truck or a bus after being on duty for, a) 60 hours in 7 consecutive days, or b) 70 hours in 8 consecutive days, or c) 120 hours in 14 consecutive days. .... I may just be too dense, but I don't see how (a) and (c) aren't redundant. In order to work 120 hours in a 14 day period, it'd be necessary to work 60 hours in either or both the first or last 7 days of the 14 days. If drivers are prevented from driving 60 hours in any 7 day period, it's mathematically impossible for them to drive 120 hours in any 14 day period. Unless there are further, undstated rules about adjusting for days off after 7 or 8 day periods. This also seems to allow drivers to drive 8.5 hours per day indefinitely. As an example; A driver starts work on Monday, before he reaches Sunday he has accumulated 60 hours and must not continue to work during the remainder of this 7 day stretch so he is forced to take Sunday off. He returns to work on Monday. His seven-day stretch does not start over. He must now calculate the hours worked from the previous Tuesday to determine how many hours he is allowed to work. .... So if a driver drove 54 hours between Monday and Saturday and was scheduled to drive 8 hours on Sunday, would that driver be allowed to drive 6 hours on Sunday or not allowed to drive at all until the following Mondday? I would like to create a template and use the file for each driver who works extra hours. In A1 I would type a drivers name, which would return values via a lookup table to represent a scheduled set of hours over a 12 week period. These hours would be imported via the lookup into B3:B??. Each workday would be listed by date from A3:A??. Then the formula below would be used for the calculation and the Conditional format command would warn me of any violations. The regular scheduled hours for the driver would occupy the dates for the entire 12 weeks. Days off would be blank. I would insert another column or columns that the extra work could be enter in and column B3:B?? would contain a nested formula to return this value. Column C3:C??, D3:D??, E3:E?? respectively would be used to hold the formula below. I have tried to modify it but it will not work for me. Any help would be appreciated. .... In cell D4 enter: =SUMPRODUCT(--($A$4:$A4=$A4-D$3-1),--($B$4:$B4=$B4),--($C$4:$C4)) Sure looks like C3:E3 would need to hold 7, 8 and 14, respectively. I'm going to assume there are no problems populating dates in col A starting in cell A4 and hours in col B starting in cell B4. I'll assume C2:E4 contains {60,70,120;7,8,14}. I'll enter "Status" in cell F3. Now for formulas. On the first day (cell A4), it's a certainty the driver will be driving the full schedules hours, so select C4:E4, type the formula =$B4 and press [Ctrl]+[Enter] (*DONT'T* hold down [Shift]). In F4 enter the array formula =IF(AND(C4:E4<=C$2:E$2),"Driving","Off") Now the fun. In cell C5 enter the formula =$B5+SUMIF(OFFSET($F5,-1,0,MAX(1-C$3,ROW($B$4)-ROW()),1),"Driving", OFFSET($B5,-1,0,MAX(1-C$3,ROW($B$4)-ROW()),1)) Fill C5 right into D5:E5. Fill F4 down into F5. Then select C5:F5 and double click on the Fill Handle (the square in the bottom-right corner of the border around the selected cells) to fill C5:F5 down to match the entries in columns A and B. Note: this assumes that if a driver were to exceed any of the max hours on a particular day, then that driver wouldn't drive at all that day rather than drive just until they reach the max hours. In the previous example I gave the driver would be off all day on Sunday. |
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