(a) continuously monitor for receipt of the vehicle trip plan for bookings data flow;<br/>(b) when the data flow in (a) is received, check its contents to see if any payment for the actual trip planning service is needed;<br/>(c) if the answer to the question is (b) is yes, request payment from the Trip Planning Driver or the Freight Transport Operations Manager Terminators in the request vehicle trip planning payment data flow;<br/>(d) as a result of (c) continuously monitor for the receipt of the vehicle trip planning payment data flow from either the Trip Planning Driver or the Freight Transport Operations Manager Terminators;<br/>(e) when the data flow in (d) is received, check for payment information and if found, send this to the Financial Clearinghouse Terminator in the request payment for vehicle trip planning data flow;<br/>(f) as a result of (e), continuously monitor for receipt of the payment for vehicle trip planning response data flow from the Financial Clearinghouse Terminator;<br/>(g) when the data flow in (f) is received, check to see if it was successful and if not, send the vehicle trip planning booking mishap data flow to the Trip Planning Driver or the Freight Transport Operations Manager Terminators and repeat (c) to (f), or if failure has occurred a defined number of times, send a message to the Trip Planning Driver or the Freight Transport Operations Manager Terminators that the trip plan will be deleted in the request vehicle trip planning payment data flow and send a failure response to the Prepare and Revise Trip Plans function in the trip plan with trip plan payment failed data flow;<br/>(h) if in (b) no payment for the trip planning service is needed or the payment for the actual trip planning service in (c) to (g) has been successful, then check to see if any advanced payments are needed and if not send details of the vehicle trip plan to the Manage Freight Vehicle Rest Area Use function in the trip plan with zone of parking booking needed data flow;<br/>(i) if the check in (h) shows that advanced payment for some part of the vehicle trip plan is needed, send details to the Trip Planning Driver in the advanced payment for vehicle trip plan data flow;<br/>(j) as a result of (i) continuously monitor for receipt of the vehicle trip plan booking approval data flow from the Trip Planning Driver;<br/>(k) when the data flow in (j) is received, check for payment information and if found, send this to the Financial Clearinghouse in the vehicle trip planning service payment request data flow;<br/>(l) as a result of (k), continuously monitor for receipt of the vehicle trip planning service payment response data flow from the Financial Clearinghouse;<br/>(m) when the data flow in (l) is received, check to see if it was successful and if not, send the vehicle trip planning booking mishap data flow to the Trip Planning Driver, wait for the revised vehicle trip plan booking choices data flow and repeat (i) to (l);<br/>(n) if in (i) a negative or no response is received, or (i) to (l) have been repeated a defined number of times, send a message to the Trip Planning Driver that the trip plan will be deleted in the request vehicle trip planning payment data flow and send a failure response to the Prepare and Revise Trip Plans function in the trip plan with trip plan payment failed data flow;<br/>(o) if the response found in (m) showed that payment has been successfully made, send details of the vehicle trip plan to the Manage Use of Rest Areas function in the trip plan with zone of parking needs data flow.<br/>
