The digital revolution has changed communications, and with it, the operations and finances of the U.S. Postal Service. It also has brought deep changes in the way we design networks and analyze systems. Many organizations rely on mathematical modeling to test ideas before they become operational, conserving money and time. The Postal Service, facing limited capital and resources, has also adopted this practice. It is discovering how important these tools are for assessing strategies for designing the future mail network.
The Postal Service established International Service Centers (ISCs) in 1996 to become more competitive in the international mail market. ISCs distribute and dispatch both incoming and outgoing international mail. The ISC network has facilities located in five major cities: New York, Miami, Chicago, Los Angeles, and San Francisco. The Postal Service hoped that ISCs would improve service and provide the structure needed to support new products and increase revenue.