I need a transportation engineer

Can someone explain how this makes sense? Delays occur on metro, this is just a fact of life. It's a mechanical device and things are going to break down. The frustrating thing with delays is when they occur and how they are dealt with. Nothing is more infuriating than to be sitting on a track going one direction with the announcement that you are stopped because of delays in the opposite direction. This never ceases to confuse me.

I actually did ask a civil engineer, since transportation engineer wasn't within inquiry distance, and she explained to me that it is because the trains are a closed system. If the train line continues to operate as normal, with a stoppage somewhere along the line, it will cause further delays throughout that line. Fine. I don't like the explanation, but it makes sense a little.

But the delay that happens with me frequently is this. My stop is at the end of the line. There are two tracks at the station, each track operates the length of the line, but there is also a switch in between the two of them. At least twice a week we stop before the switch for a couple of minutes while the train at the station leaves. This I don't understand. Each track has a dedicated line and the ability to change tracks. Why stop? Further more, why stop before the switch when a delay is encountered further up the line, as happened the other day? We waited 10 minutes for the problem to resolve itself, and WE WERE WITHIN VIEW OF THE STATION!!!! Wouldn't it make sense to just pull the train into the station and wait for the delay to end? It's the end of the line, your riders want off. Come on metro, think this through!!