The availability and complexity of alternative routes was such that specific instructions on the routing were issued to enable the forwarding stations to insert on the invoices and waybills the routes by which the consignments were intended to travel. These were then entered onto an abstract sheet which was sent to the RCH and served as the basis for the division of receipts. For the guidance of outside staff, the route was also shown on the wagon label, attached to any other vehicle, or consignment. RCH regulations required that all wagons, apart from those containing minerals in train loads not involving marshalling yards during or on completion of a journey, must have a label affixed on each side, giving among any other particulars:
- Name of invoicing or sending station.
- Destination in full and initials of the railway on which it was situated.
- Route, naming all junctions with other companies lines …and when two or more companies had lines between the same destinations, the initials of the companies whose lines intended to be used.
The advantages of showing routing were:
- The operating staff, particularly those working in marshalling yards and at exchange points, were aided in the sorting and assembly of trains, and at junctions assured the appropriate transfer of wagons to different companies.
- The clearing house was provided with the data needed to credit the various railway companies over whose lines traffic had passed and thereby enable the proper proportion of receipts for use of their lines to be made to them.
…To achieve this, RCH employed numbertakers at seventy-five exchange junctions, later reduced to fifty-nine. These would record all the wagon stock and sheets passing from one companies line to another, and the headquarters office would then balance the exchange between companies...