Transporting goods via freight rail networks and container ships is often the most efficient and cost-effective manner of shipping. However, when goods arrive at a high-capacity
freight station or port, they must then be transported to their final destination. This last leg of the supply chain is often less efficient, comprising up to 53% of the total cost to move goods. This has become known as the "last mile problem". The last mile problem can also include the challenge of making deliveries in urban areas. Deliveries to retail stores, restaurants, and other merchants in a central business district often contribute to congestion and safety problems. A related last mile problem is the transportation of goods to areas in need of humanitarian relief. Aid supplies are sometimes able to reach a central transportation hub in an affected area but cannot be distributed due to damage caused by a natural disaster or a lack of infrastructure. One challenge faced in last-mile delivery is unattended packages. Shipping companies, like
UPS,
FedEx,
USPS,
DHL and others, leave a parcel unattended at a business or home which exposes the item(s) to weather, and the chance of theft by "porch pirates" (a person who steals packages off of customers' porches or front door areas). One solution to this problem is setting up lockers in urban centers.
Amazon in the United States has deployed lockers where customers can pick up packages rather than them being left at their home. This protects them from theft and damage as well as allowing companies to deliver to one location, rather than a number of individual homes or businesses. Similarly, in Taiwan, some online vendors offer the option of delivery to a convenience store of the customer's choice, for pickup from the store by the customer. Not only does this reduce the chance of theft and consolidate packages but also payment of the purchase at the store may also be offered. Cainiao, Alibaba's logistics arm in 2018, also developed a smart locker that would be installed outside the front door of customers' homes. The box would be able to unlock using facial recognition and can also be temperature-controlled in order to keep food deliveries either cold or hot, depending on what the item is. The whole idea would be to keep the package secure from not only people who might steal it but also from animals or inclement weather conditions. In 2020, when the country was in the grip of COVID-19, Cainiao used parcel lockers in Shanghai to have food deliveries made, so customers could have their edible items delivered with no human contact. To reduce cost retailers have researched using autonomous vehicles to deliver packages. US-based
Amazon and China-based
Alibaba have researched deploying drones for delivering goods to consumers. In 2015, Alibaba's e-commerce sites ran a limited test of black ginger tea delivery through drones in China for a limited number of customers who live within a specific proximity of distribution centers. The delivery was carried out through a combination of human and drones, where the delivery person intercepted the drone and delivered it to the customer. The service like in the US is expected to come under scrutiny from Chinese regulators who were cautious of expanding drone capability due to security reasons. It is expected that North America will be the largest region in the delivery drones market in 2025. Major companies operating in the delivery drones market are Amazon, United Parcel Service of America, Alibaba Group Holding Ltd, Deutsche Post AG, FedEx Corporation, The Boeing Company, among others. Europe, Germany, Britain, and Poland have experimented with services that provide automated parcel delivery.
Third-party logistics providers have begun to use solutions powered by AI when dealing with last mile. AI tools have improved package tracking information for consumers and retailers. More advanced carrier networks integrated with AI allow third-party logistics providers to offer more shipping options to their customers while also offering preferential rates. ==Usage in transportation networks==