Roadbed takes a tad longer.
Once I'd gotten the frame installed and arguing with myself about what the backdrop configuration would be;
I tossed some strips of plywood onto the framework and stared at it on and off for a couple of days, trying to determine what pleased my eye the most.
In the end I settled on a very slight curve just east of the CPR diamond and then a nice long straight stretch to the corner.
I'll come back now and determine where the culverts may go and start laying ties.
Have to start really thinking hard about Aylmer soon. It's next.