From Window Shoppers to Adopters: Four Suppliers Post Progress in Enticing Railroads to Deploy Train-Control Technologies

While improving safety is the primary objective of train control systems, the technologies that are involved can offer railroads a wide range of applications. This article focuses on four different train control suppliers, how their train control systems work, and which railways are testing and purchasing the products. It relates how train control technologies can be used to monitor and enforce train speed limits, provide positive train control (PTC), automate dispatching through computer-aided dispatching (CAD) systems, generate electronic authorities, or issue track warrants in dark or non-signaled territories.