Wind-related restrictions have been placed on the use of certain cranes in New York following a fatal incident last week.
City mayor Bill de Blasio said that whenever steady winds were forecast to exceed 20mph – or gusts were forecast to exceed 30mph – crawler cranes would have to cease operation.
It followed the death of 38-year-old David Wichs when a crane collapsed in the Tribeca neighbourhood on Friday 5 February.
“We’ll send advisories to crane engineers when wind conditions warrant it, and engineers will be required to certify that they will indeed cease operations,” said de Blasio of his new measures.
“If we don’t receive this certification, we will be issuing violations and we will raise the base penalty for failure to safeguard a site from the current $4,800 (£3,300) to $10,000.”
Other measures announced by de Blasio included increased enforcement of pedestrian protection and requirements to notify local people when a crane was being put into a secure position.
A task force has also been announced to propose further regulations and practices in light of the collapse last week.