Purpose: Used to set the number of lane combinations to consider for live load envelopes in Girder System Projects using direct lane loading. (Not applicable to Line Girder Projects.)
--> Given in girder system input
Loads all lanes separately and uses the governing combination of lanes taking into account the reduction in load intensity as per AASHTO 3.12 (ASD, LFD) or 3.6.1.1.2 (LRFD). ALL LANES is the default condition. (Also see TWO CLOSEST LANES )
Lane Layout/Lateral Distribution in Parallel/Concentric Girder System Projects
Lane Layout/Lateral Distribution in General Girder System Projects