Real-time estimation and prediction of origin-destination matrices per time slice

As part of the DRIVE-II project DYNA (Dynamic Network Assignment), an approach for the real-time estimation and prediction of origin-destination (OD) matrices per time slice has been developed. This method is useful to support real-time traffic management of a freeway network. The proposed indirect approach combines historical information with traffic counts at on-ramps. It has been tested on the Italian freeway A4, where the existing pay toll system enables us to measure the real origin-destination matrices. The results show that these prediction procedures can perform almost as well as direct prediction methods based on knowledge of the demand.