Transport logistics systems and methods

A logistics system manages the shipments of goods supplied from a plurality of different shippers by a plurality of carriers. It has a variety of modules integrated with each other to perform various functionalities. For example, it may have a purchasing module evaluating proposals by shippers for respective shipments of goods and awarding contracts for the shipments to the plurality of carriers. It may have an optimization module analyzing the proposals and informing the purchasing module if an opportunity exists for at least some of the shipments to be consolidated, in which case at least one contract awarded by the purchasing module is for a consolidated group of the shipments. It may have a contract administration module maintaining information relating to the status of proposals received and contracts awarded by the purchasing module. It may have a scheduling module scheduling shipments according to the awarded contracts. It may also have a shipment management module tracking the status of shipments awarded by the purchasing module and scheduled by said scheduling module. It may further have a financial module authorizing payments according to the status of shipments tracked by the shipment management module are passed between first and second asynchronous clock domains.