This dialog is accessible from the Model > Bridge modelling > Generate static vehicle load menu command. This allows the user to generate a set of loads for a statically positioned vehicle. The origin of the vehicle (normally the centre of the back axle) is positioned is this dialog.
For bridge analysis a vehicle is defined as a pattern of loading based on axle and wheel positions. User defined arrangements of wheel loads forming a vehicle are defined here for use in bridge loading or to generate static vehicle load. Wheels are always positioned in pairs symmetrically about the central axis, but can have different intensities of load to allow for lurching, wind loading etc.