MANDATE FOR MODELING

摘要

Arubber safety screen falls away from a newly blasted rock at one of the many faces forming an 18-kilometer-long tunnel being built to divert traffic away from Sweden's capital city. As well as easing pressure on Stockholm's congested routes, the tunnel-one of the world's longest- is introducing collaborative 3D engineering to Swedish infrastructure. With varying degrees of digital expertise, the national highways authority Trafikverket and the designers and contractors on the $3.6-billion E4 bypass project now are embracing building information modeling in a big way, some for the first time. Even official bid documents are digital and in 3D.