The typical Changes clause in a construction contract requires all changed or extra work to be authorized in advance by written, executed contract modifications. Sometimes the parties to the agreement follow this requirement consistently. Sometimes they ignore it. Sometimes they follow it intermittently.
In a recent case, a contractor asked a subcontractor to accelerate its work to make up time lost due to no fault
As part of the U.S. Green Building Council's LEED v3, buildings seeking LEED certification will need to submit operational performance data on a recurring basis as a precondition to certification.
"Today there is all too often a disconnect, or performance gap, between the energy modeling done during the design phase and what actually happens during daily operation after the building is constructed," said Scot Horst, senior vice president of LEED, USGBC. "We're convinced that ongoing monitoring and reporting of data is the single best way to drive higher building performance because it will bring to light external issues such as occupant behavior or unanticipated building usage patterns, all key factors that influence performance."
Though opening day at the Yankees’ new stadium met with disappointment from a stats perspective – a 10-2 loss to the Cleveland Indians—players and fans are thrilled with their new digs. And, they can thank Building Information Modeling (BIM) for some of that.
Turner Construction Company utilized Autodesk NavisWorksManage software as an element in the modeling process used to complete the new Yankee Stadium project. As part of its construction management process, known as Virtual Trade Coordination (VTC), Turner used the latest BIM processes, Autodesk Revit-based products, and NavisWorks Manage software to help streamline workflow and collaboration among subcontractors.