They had a good detailed simulation. Any competent construction project does, and most of the time, agencies are federally mandated to require BIM both for the

They had a good detailed simulation. Any competent construction project does, and most of the time, agencies are federally mandated to require BIM both for the construction phase and the maintenance phase. No amount of detailed simulation can help if your contractor thinks you wanted 16 widebody bays and 4 narrowbody bays. There was nothing wrong with the execution; the disagreement is about what was to be built.