Introduce the functions to be included in the LIS of last mile delivery: why they are important, and how they are expected to support/improve certain operations Vehicle Routing Problem and Traveling Salesman Problem for truck and deliveryman respectively (real time data collection, including GPS, GIS, and then schedule through algorithm), visualization (GPS, associate with food delivery), big data analysis (consumption custom)

P.S. Please provide the references as links or other styles, thank you!