MBTA Platform collapse

Trains Magazine Transit
1

http://www.nbcnews.com/news/us-news/two-hospitalized-after-billerica-mass-train-platform-collapse-n292711

2

These platform extentions have always made me nervouse. I think that they are designed to break if a RR car hits them rather then damage or derail the RR cars. Freight still uses these lines.