A large sinkhole has formed on Longwood Avenue in the city’s medical hub, forcing closure of a part of the critical roadway, according to police. Boston police said the stretch of the road between Binney and Blackfan Streets, a block that includes Boston Children’s Hospital, has been closed. Police are advising people to avoid the area.
Traffic Advisory: Due to a large sink hole, traffic on Longwood Ave is shut down between Binney and Blackfan …