The Metropolitan Transportation Authority (MTA) issued new safety rules as it resumed work at the Second Avenue Subway's 95th Street station site today, March 21, a day after an SAS contractor trapped below ground in mud up to his chest was rescued.

"Everyone in the area will work with harnesses, and all areas without any support under them will be marked off with cones," the agency said in a statement.

The mandate follows a grueling four-hour ordeal that began March 19 to free 51-year-old Joseph Barrone, an E.E. Cruz worker who got stuck 75 ft below ground in the quicksand-like mud at the excavation site. Barrone is in good condition but remains at Weill Cornell Medical Center, a hospital spokeswoman says. E.E. Cruz and Tully Construction are the joint venture general contractors at the station, part of the $4.51-billion SAS project.

MTA says the investigation into the incident is ongoing.