I am in an engineering firm and am utilizing MF 2004 for structural and civil work, predominately in the areas of ports & harbors, coastal engineering, and transportation. As such, I am working a great deal in the Site & Infrastructure Subgroup (the 30s).
For the newly developed divisions, the initial Level 3 number assignments are awkward, to say the least. More specifically, the problem lies in the designation of the series 13, 16, 19, 23 instead of something like 13, 33, 53, 73, allowing more space between the titles and room for development. In the following example it seems ridiculous to have to go to a Level 4 to differentiate between C-I-P & Precast Piles.
I dislike using a level 4 unless it is truly to give uniform definition of the subject matter (Page 3), which in this case it is not.
31 62 00 //Driven Piles
31 62 13.13 /Cast-in-Place Concrete Piles
31 62 13.16 /Concrete Displacement Piles
31 62 13.19 /Precast Concrete Piles
31 62 13.23 /Prestressed Concrete Piles
31 62 16.13 /Sheet Steel Piles
31 62 16.16 /Steel H Piles
31 62 16.19 /Unfilled Tubular Steel Piles
31 62 19 /Timber Piles
31 62 23 /Composite Piles
31 62 23.13 /Concrete-Filled Steel Piles
I cannot wait two or three years for CSI to address the problem with the MFETT so I want to change the Level 3 numbers, even though it goes against the rules. Yet if I do this, I want to at least do it intelligently realizing, of course, that there is a potential for future conflict. Id also like to do this in conjunction with others that use the same divisions (perhaps via group email or a forum).
So I need some guidance/opinions and here is some food for thought:
31 62 00 //DRIVEN PILES
Option 1 - Option 2
31 62 11 - 31 62 31 /Cast-in-Place Concrete Piles
31 62 12 - 31 62 32 /Concrete Displacement Piles
31 62 14 - 31 62 41 /Precast Concrete Piles
31 62 15 - 31 62 42 /Prestressed Concrete Piles
31 62 21 - 31 62 51 /Sheet Steel Piles
31 62 22 - 31 62 52 /Steel H Piles
31 62 24 - 31 62 54 /Steel Pipe Piles
31 62 31 - 31 62 61 /Timber Piles
31 62 41 - 31 62 81 /Composite Piles
31 62 42 - 31 62 82 /Concrete-Filled Steel Piles
I am avoiding the use of numbers ending in zero and numbers that are frequently already assigned (13, 16, 19, 23, 26, 29, 33 etc.). However, the titles are mostly the same.