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NTSB vice chairman has been an advocate for accelerated installation of positive train-control technology in U.S. rail infrastructure.

Construction industry officials hungering for details about President-elect Donald Trump’s $1-trillion infrastructure proposal have gleaned some hints about the plan from Elaine Chao, Trump’s nominee to lead the Dept. of Transportation.

With the decentering complete of the fixed trusses that shape the daring kinetic roof of the Atlanta Falcons stadium, the steel erector is adding the eight movable parts, called "petals," that will close and open like an oculus.

As those on the leading edge know, progress in the buildings sector does not come easily. But that doesn't stop innovators from working diligently to increase the sustainability and resilience of buildings and decrease their carbon footprints while trying to find ways to boost construction quality and building-team productivity.

MULTI relies on magnetic levitation technology and, like a subway, has several cabs in one shaft.