Real Time Linux Operating System for ATC

The goal of the Advanced Traffic Controller (ATC) program to create an open-architecture general computation platform for traffic engineering applications will be more fully realized by the transition from proprietary operating systems to open source Linux. The use of hard real-time Linux will maintain current levels of operational performance while enabling the use of newer and more powerful hardware platforms, peripherals, and evolving software development and optimization tools. Precision Traffic Systems designs, assembles, and installs real-time Linux-based traffic engineering equipment for customers throughout the United States. Precision Traffic Systems¿ equipment is connected to signal controllers, vehicle sensors, and cameras to collect, organize, and deliver traffic and individual vehicle data including speed, volume, traffic violations, acceleration, and vehicle length. Precision Traffic Systems will obtain SEPAC source code from Siemens ITS, analyze its real-time requirements, select a version of real-time Linux, and port the SEPAC OS-9 calls to Linux. These calls will be system services, task management, serial communications,and memory access. The system will be stress-tested by triggering the prototype controller with vehicle detections from CORISM connected via a Controller Interface Device.