This whole saga is really confusing.  I thought the issue was that the gates were already staying down too long but this article makes it seem like it's the opposite, "that up to 20 extra seconds of gate closure time could lead to unsafe driver behavior."

Also, RTD told the FRA in July, I believe, that they had fixed the problem. So what exactly is happening here?  Is the five year waiver acceptance of that and is a five year waiver normal?  Do lines get rechecked every five years?