Starting from the four major PRD air cargo ports (Guangzhou/Shenzhen/Hong Kong/Macau), this chapter covers global air freight routes, hub connections, route selection decisions, and airport code references. Starting from the Pearl River Delta: A Guide to Global Major Air Cargo Routes and Hub Connections Guangzhou/Shenzhen/Hong Kong/Macau: In-depth Comparison of the Four Major Air Cargo Ports in the Pearl River Delta Air Freight Route Types & Selection Quick Reference Manual of Three-Letter Codes for Major Airports Worldwide Book traversal links for International Air Freight Operations Manual ‹ Air Cargo Tracking and Information Query Guide Up Starting from the Pearl River Delta: A Guide to Global Major Air Cargo Routes and Hub Connections ›