To the guy with only a single car runaround track.... yipes! I have an industrial area with only one way in/out, two spurs facing one way, two spurs facing the other, one runaround tail track leads to an interchange set-out, the other to another industry (two more turnouts opposite to each other) and an industry spot on the runaround track. All but one spur are max 2-car spots, not always switched the same time. Only one spur is long enough to park two cars out of the way. My original runaround held 3 units -- after my first very long switching session I rearranged track so the runaround is now half the length of the whole trackage area. I've yet to switch the new set-up.
The Exeter Branch qualifies as a bowl of spaghetti layout. Sounds like train blocking is scrambled eggs.