At least three customers, and possibly more when newly announced industrial land in Elmira is developed.
The Waterloo Spur is run to a smaller Plate than the full double stack mainline standard, meaning some types of larger cars are not permitted. There are high-wide sensors at each end of the LRT segment. Some CN locomotives have even been found to not meet the dimensional standard. There are special instructions guiding operations over the LRT trackage.
Considering that several GO lines do run on CN and CPKC for part of their route, and consequently GO crews must be qualified in the traditional CROR and related rules, it would not be a simple task to double-train and require crews to apply one set of rules on one property and another on the core GO lines. Crews already spend enough time doing initial training and requals for rules training. Doubling that study time would not improve productivity.
ML could probably be able to get exceptions to specific items, and in fact they do this already via Special Instructions in their timetable....but a wholesale rewriting of the CROR would require lengthy analysis and discussion with the regulator.
I would not defend the CROR as a perfect world, but transition to another system would be a change initiative of a large scale. Maybe this isn't the time for that given other things needed more.
- Paul