The metal barriers currently being tested, while not an ideal solution, are one example of a solution that could save lives with minimal cost. Barriers that are

The metal barriers currently being tested, while not an ideal solution, are one example of a solution that could save lives with minimal cost. Barriers that are not aligned to the doors and move up vertically from the edge of the platform (but stay down if someone is in the way) once a train approaches could be another idea. Traditional doors like you see in many parts of Asia probably aren't the answer, but if this sort of complete solution were installed, the middle conductor position could be eliminated, resulting in labor savings. Of course this would never happen due to politics. Service needs to improve and this may be a better use of funds. I would say that safety is a citywide problem, not an MTA-specific issue, though.