the 500-foot crane tumbled to the ground Feb. 5 in Tribeca<\/a>, crushing cars and injuring three other people.<\/p>\nThe report also called for a requirement that most cranes operating in the city be equipped with devices known as anemometers capable of measuring a wind gust lasting only three seconds.<\/p>\n
Following two 2008 fatal crane accidents, a city report recommended that the city study the use of black boxes as part of much larger review of high-risk construction oversight, but so far the city hadn\u2019t made it a requirement.<\/p>\n
\u201cIt is a sensible thing and the time has come\u201d said buildings Commissioner Rick Chandler. \u201cIf we claim to have the most stringent crane regulations in the country, which we firmly believe, this is the next step.\u201d<\/p>\n
Mayor Bill de Blasio said the city Department of Buildings would review the proposals and implement the ones it can on its own and work with the City Council on others.<\/p>\n
The report also called for an aircraft-style checklist for the inspection of each crane before operations begin each day. A new worksite position, to be known as a \u201clift director,\u201d would oversee all aspects of crane safety.<\/p>\n
Some of the proposals reflect recent national standards for crane use while others, such as the data-logging black boxes, are innovations that have been installed in many cranes in recent years.<\/p>\n
The data recorded by the black boxes would include the crane\u2019s configuration, how far out the load is, switch settings and when the operator overrides automatic settings. The report says data must be made available to the Department of Buildings at the agency\u2019s discretion.<\/p>\n
The cause of the February crane collapse hasn\u2019t been determined, but one city official noted crane did have a black box, which has become part of the investigation.<\/p>\n
Some cranes in use in New York City include wind information in their time-stamped black boxes, which others track the wind separately, crane operators say.<\/p>\n
After the February accident, the city banned all cranes that weren\u2019t designed to operate with winds above 20 miles an hour. When winds were forecast to reach 30 miles an hour the city issued \u201ccease-operations\u201d orders directing cranes to be shut down.<\/p>\n
This led to complaints from contractors and developers that cranes were shut down even when little wind was detected.<\/p>\n
The report recommend the city drop this practice, except in extreme weathers. Instead, contractors at large job sites would be required to hire meteorologists to determine \u201cpin point forecasts\u201d that take into account the local topography of a building and its exposure to the wind.<\/p>\n
\u201cIt will give you a more accurate forecast,\u201d said Louis Coletti, president of the Building Trades Employers\u2019 Association, which represents many New York area contractors. \u201cIn one day, 58 tower cranes were shut down. Wind conditions are different street by street and site by site.\u201d<\/p>\n
Mr. Coletti said the industry was a partner with the city in improving public safety but wanted to have \u201ca continuing dialogue\u201d on how the new rules would be implemented.<\/p>\n
John Banks, president of the Real Estate Board of New York, said the proposals were \u201ca meaningful step forward toward fundamental reform.\u201d<\/p>\n
The five-member working group included the deans of engineering schools at Columbia University and New York University. Its members weren’t directly involved in the high-rise construction business in New York, city official said.<\/p>\n
One member, Peter J. Madonia, chief operating officer of the Rockefeller Foundation, said the panel tried to put in a more systematic use of technology to \u201cget ahead of curve.\u201d<\/p>\n
\u201cWe are a complex city and those are big machines,\u201d he said. \u201cI don\u2019t think there is over regulation. It is complicated because New York\u2019s infrastructure and its grid are complicated.\u201d<\/p>\n
The task force also urged the city to explore new kinds of cranes, including self-erecting tower cranes increasing used in Europe. These can be driven to a site, unfolded and set up in less than an hour and are suitable for low to mid-rise buildings. The report said they had a small foot print and could operate in tight areas \u201cwhile ensuring safe operation.\u201d<\/p>\n
By\u00a0JOSH BARBANEL<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Fatal Tribeca collapse triggered proposal for new data-logging gear; \u2018It is a sensible thing\u2019 The WSJ.com reports four months after a construction crane collapsed on a Manhattan Street in high winds, killing a pedestrian, a city panel has recommended cranes be equipped with black boxlike devices to electronically capture crane activity. It was one of […]<\/p>\n","protected":false},"author":1,"featured_media":4291,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":""},"categories":[2,3,7],"tags":[],"yoast_head":"\n
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