Purpose: Used to modify ADTT for LRFD projects, and for LFD girder system projects when the 2003 Curved Girder Specification is used.
--> Given in LFD and LRFD girder input. Also given in bracing input in Girder System Projects.
Number of lanes occupied by trucks for the determination of “p” in LRFD Table 3.6.1.4.2-1 to modify ADTT as ADTT(SL) = p x ADTT.