“CN and Amtrak said they will work together on a process for Amtrak to equip its trains with Onboard Shunt Enhancers (OSEs), which improve how trains are detected as they approach grade crossings.” Well, well. This has been a complaint they've had about Via Rail, too. https://www.trains.com/pro/passenger/amtrak-and-cn-reach-new-host-railroad-operating-agreement/