The 37Q heads through the yard (not down 101-104, the main or #1). This was because he had to drop off the rear of his train instead of the front as often is the case.
Blocked by 37Q and blocking the 227 (which has just recrewed), the 203 sits on the "Brick" for a few minutes until the rear of 37Q can clear the crossover a quarter mile away and he can go back to... (more)