The MTA also expressed interest in starting a pilot program to install platform edge doors. Several planned stations in the New York City Subway may possibly feature platform screen doors, including at future stations such as those part of the Second Avenue Subway. Currently, the MTA is planning a test program to install screen doors at a subway station on the BMT Canarsie Line. As part of the 2010–2014 capital program, the station was going to be Sixth Avenue, but it is uncertain if this will be the chosen station. Following a series of incidents during a week in November 2016, in which three people were injured or killed after being pushed onto the tracks, the MTA started to consider installing platform edge doors for the 42nd Street Shuttle. Numerous challenges come with platform doors. Some subway lines operate multiple subway car models, and their doors do not line up. Many platforms are not strong enough to hold the additional weight of a platform barrier, thus requiring extensive renovations if they were to be installed.