All this outside the Newswalk, a large residential building on Pacific Street between Carlton and Vanderbilt avenues, and adjacent buildings, late yesterday morning, as documented on Atlantic Yards Watch.
All apparently caused by the confluence of a construction worker's car double-parked due to lunch hour alternate side.
Meanwhile, flaggers from the staging area east on Pacific Street, unmindful of the traffic tie-up ahead, continued to let trucks proceed west toward the arena site.
Above left, trucks on Pacific Street just west and east of the Carlton Avenue intersection. East is the private street used as a staging area.
Note that the second truck blocked any other vehicle traveling north on Carlton Avenue to proceed in the only manner possible, which is west on Pacific Street.
The source of the traffic jam
Below, a picture of the rig further west on Pacific Street, stuck. More photos, and video, here. The lingering question: is there any oversight?