The “traveling salesmen problem” was formulated aroundeighty years ago, but still defines the core challenge forlast-mile delivery. Route optimization on the last mileaims at saving time in the delivery process. Rapidprocessing of real-time information supports this goal inmultiple ways. When the delivery vehicle is loaded andunloaded, a dynamic calculation of the optimal deliverysequence based on sensor-based detection of shipmentitems frees the staff from manual sequencing. On theroad, telematics databases are tapped to automaticallychange delivery routes according to current traffic conditions.And routing intelligence considers the availabilityand location information posted by recipients in orderto avoid unsuccessful delivery attempts.