Back in the mid-1980s, when I established the U.S. Navy’s first GIS, we used mapping software from a company called National Planning Data Corporation (NPDC). In the process, I had several interesting ...

Testing of data provided by the Second Pipeline Construction Co. of China National Petroleum Corp. (PetroChina Pipeline) shows that using a 3D pipeline spatial-data model (PSDM) not only can further ...

Location data is critical to nearly all state and local government work — whether it’s responding to a public safety call, supporting community planning and development, or maintaining critical ...

Retail trade area analysis has long been central to retail site selection and market evaluation. Analysts rely on it to define and characterize the geographic area from which a store draws the ...