The Edmonton Model Railroad Association uses a car-card and waybill (CC&WB) operating scheme for our operating sessions (usually the second Tuesday of each month). Each crew is given a stack of car cards, corresponding with the cars in their train, and in each car card is a waybill, giving a destination and load for that car. Each waybill has up to 4 different destinations on it, allowing each car to move to 4 different locations before starting the cycle all over again. This system is almost an exact copy of the system used by Tony Koester, and explained in the March 1993 Model Railroader. Once a car is delivered to its destination, the card and waybill is placed in the slot for that particular industry. Between operating sessions, the traffic coordinator will flip the waybills and the car will be delivered to its next destination at the next operating session. This system gives the impression that the train is actually going somewhere and doing something.
Some car-cards or waybills are dedicated to particular trains:
When a crew arrives in a town, they go through all the industry slots looking for cars to pick up. The waybill will tell you if the car is to be picked up or if it stays. If the waybill destination (the _TO_: line) indicates the car is to be delivered to the industry where it is already located, then the car is still being emptied or loaded. If the _TO_: line of the waybill has a different destination, then the car is ready to be picked up. Each town will also have a slot for cars that could not be delivered to their correct industry, due to lack of space or some other reason. These cars/slots will be called "off-spot" or "to be spotted". If any cars are found in these slots, and can be delivered to their rightful destination, they are to be delivered.
Here is the listing of freight trains effective 2020.02.25: