Purpose: Used to modify LRFD live loading.
--> Given in girder system input in Girder System Projects. Given in girder input in Line Girder Projects.
A decimal factor used to override the constant 0.90 in the expression 0.90 (2 design trucks + lane) for maximum negative moment between points of contraflexure (3.6.1.3.1). For example, a factor of 1.00 uses 100 percent of the effect of two design trucks plus lane loading.