Hub

In logistics and transportation, a hub is a central facility or location where freight is collected, sorted, and redistributed to its final destinations. Hubs serve as consolidation and deconsolidation points in a network, allowing carriers and logistics companies to aggregate shipments from multiple origins, route them through a single facility, and then distribute them efficiently across a wide geography. The hub-and-spoke model is the dominant network design in air freight, parcel delivery, LTL trucking, and ocean shipping.

How the Hub-and-Spoke Model Works

In a hub-and-spoke system, shipments from various origins (the spokes) are transported to a central hub, where they are sorted and consolidated with other shipments heading to the same destination region. The consolidated freight then moves outbound on spokes to final delivery points.

FedEx’s Memphis Super Hub is the most recognized example. Every night, packages from across the U.S. and internationally converge on Memphis, Tennessee. Workers and automated systems sort millions of packages by ZIP code and destination. By early morning, the sorted packages are loaded onto outbound flights and trucks heading to their delivery areas. This allows FedEx to offer overnight service between any two points in its network without needing direct routes between every origin-destination pair.

UPS operates a similar hub in Louisville, Kentucky (Worldport), processing over 400,000 packages per hour. Amazon has built its own hub network with regional air hubs in Cincinnati (CVG), San Bernardino (SBD), and other locations to support one-day and same-day delivery speeds.

Hubs in Ocean Shipping

Transshipment hubs play the same role in container shipping. Ports like Singapore, Busan, and Tanjung Pelepas serve as hubs where containers are transferred between large mainline vessels and smaller feeder vessels that service secondary ports. A container from Ho Chi Minh City bound for Charleston, SC, might be loaded onto a feeder vessel to Singapore, transferred to a larger trans-Pacific vessel, and then potentially transshipped again at a Caribbean hub before reaching the U.S. East Coast.

Major U.S. port complexes function as domestic hubs. The ports of Los Angeles and Long Beach together handle roughly 40% of all containerized imports entering the U.S. Goods arriving at these ports are then distributed by truck and rail to the rest of the country. Inland hubs like Chicago (the nation’s largest rail hub) serve as secondary distribution points.

Hubs in Trucking

LTL carriers operate networks of hub terminals connected by linehaul routes. A shipment picked up in Phoenix might go to a regional hub in Dallas, then transfer to a larger hub in Atlanta, before final delivery in Savannah. Each hub handles the sorting and consolidation needed to keep trailers full and routes efficient. Carriers like Old Dominion, FedEx Freight, and Estes operate 200 to 500 terminals each, with a handful of major hubs handling high-volume sorting operations.

Strategic Importance for E-commerce Sellers

Understanding hub locations affects decisions about where to store inventory and how to route shipments. Placing inventory near a carrier hub reduces transit time and often reduces cost because the shipment enters the network closer to a high-volume sorting point. FBA sellers who use prep centers near port hubs (like Long Beach or Charleston) reduce the number of handoffs between the port and their first U.S. warehouse, cutting both time and cost from the import process.

Amazon’s own fulfillment network operates on hub principles. Inbound shipments are received at receive centers or cross-dock facilities (functioning as hubs) and then distributed to fulfillment centers closer to the end customer. When Amazon directs sellers to ship inventory to a specific FC, the routing decision is based on where inventory is needed relative to the demand hubs in that region.