ABSTRACT
M ACCURACY OF THE MODIFIED TFCF FOR CONCEPTUAL AND CHECK ESTIMATES As mentioned in section 19.11 the total field cost factor (TFCF) can be modified and adapted to facilities that differ from those in the original s~udy. The modified factor is developed by adjusting each of its cost components (see Table 19.36) to meet the requirements of specific cases. This approach can be very useful for conceptual estimating as well as for the quick checking of estimates prepared by others.
