Construction industry leaders will hold an emergency summit meeting next week to look at the safety of a concrete-pouring process that was being used this week when a Ukrainian immigrant laborer was flung to his death from the roof of the Trump SoHo building.

The Building Trades Employers’ Association said it was calling the meeting to examine a process known as the two-day concrete cycle — a system developed half a century ago in New York to expedite building schedules — to determine if the rushed pace of the process is safe in the context of a building boom in the city.

The boom has been accompanied by a near doubling of construction fatalities — with 43 people dying in construction accidents in 2006, according to the latest record kept by the Department of Labor, compared to 23 in 2005.

“There is something going on and it’s something we’re going to address,” the association president, Louis Coletti, said. “I think we have to take a close look at the two-day cycle, at whether performing the two-day cycle in an overheated economy makes sense.”

The deceased laborer, identified by police yesterday as Yurly Vanchytskyy of Greenpoint, had been tamping down concrete on the 42nd floor of the Trump SoHo building before the collapse.

The Department of Buildings commissioner, Patricia Lancaster, said yesterday the pulling, stripping, and forming of concrete was responsible for 68% of “near misses” in construction. The two-day concrete process requires highly skilled labor and involves hand-building the wooden forms on-site. Investigators have determined that the wooden forms at the Trump SoHo had weakened as wet concrete was being poured on them, causing the floor underneath Vanchytskyy to collapse and sending him flying past safety nets on a lower floor.

As industry representatives hurried to respond to safety concerns raised in the latest fatal accident, they also defended the general safety record of city contractors and specifically that of Bovis Lend Lease, the general contractor overseeing work at Trump SoHo.

“The scale of work of that company and other large management firms, is huge, and you have to put that into context,” the president of the New York Building Congress, Richard Anderson, said, adding: “This is a dangerous business.”

Mayor Bloomberg also defended the construction industry and Ms. Lancaster, who was criticized by some local officials in the wake of the accident.

“I suppose we don’t have a particularly high rate of accidents, but one accident is one too many, and we will work very hard to find out what happened yesterday,” he said.

Bovis Lend Lease, which bills itself as one of the largest construction contractors in the world, has now been connected to three high-profile fatalities in less than six months, including the deaths of two firefighters at the former Deutsche Bank building at ground zero.

The company is under criminal investigation for the safety violations that led to the fatal fire, and the Manhattan district attorney’s office said yesterday it has assigned an attorney to look into the Trump SoHo incident.

Bovis Lend Lease did not respond to requests for comment yesterday after saying Monday it would be investigating its concrete subcontractor, Difama Concrete. The concrete company’s president is serving prison time on federal racketeering charges, the New York Times first reported yesterday.

“They have just had an incredibly bad string of luck,” Mr. Coletti said, defending Bovis Lend Lease, whose subcontractor in the Deutsche Bank building project had mafia ties.

In Greenpoint, a neighbor of Vanchytskyy, Zeeshan Tambra, remembered him for his efforts to make jokes with the few English words he knew and his hard work putting two of his children through college. Ms. Tambra said Vanchytskyy headed to his job every morning at 5 a.m., working the opposite shift of his wife, Natalia. On Monday, Ms. Tambra said she greeted Vanchytskyy’s wife as she came home with the news that police had come knocking at the door that afternoon.”She ran and started crying,” Ms. Tambra said, adding: “They were doing a lot of hard work for their sons and daughters. They were trying to survive.”