The 10th-seeded Argentine kicked the small barrier surrounding the line judge in anger after dropping his serve to Marin Cilic at 3-3 in the second set.
Those include a pilot program to test the use of platform barrier doors on the L subway line, and a vow to explore the installation of an automated warning system that would alert train controllers when a person is on the tracks.
We've already seen 220 miles worth of levees and flood walls repaired, and we are working to strengthen the wetlands and barrier islands that are the first line of defense for the Gulf Coast. (Applause.) This isn't just critical to this region's physical protection, it's critical to our environment, it's critical to our economy.
But the lanes are protected from motor vehicles by a line of white paint a largely metaphorical barrier that many drivers ignore and police do not vigorously enforce.
The report by the Rail Accident Investigation Branch (RAIB) found engineering work on the line between Southcote Junction in Reading and Westbury meant the automatic half barrier level crossing was being controlled locally.