Purpose: A factor used to modify the fatigue truck in LRFD or LFD projects.
--> Given in girder system input in Girder System Projects. Given in girder input in Line Girder Projects.
A factor for modifying the LRFD fatigue truck used either in LRFD projects or in LFD projects that use the 2003 Curved Girder Guide Specification. For example, a TFACTF of 0.9 changes the LRFD fatigue truck wheel loads to only 90 percent of the loads listed in the spec. Default value is 1.0.