CTA was developed to leverage superior, off-the-shelf, communication, and control products to provide a 100% ethernet-based wireless control system. CTA replaces only the legacy control and communication components found in all yard automation systems. CTA retains the existing power switch machine and the existing OS circuit which makes modernizing yard automation relatively inexpensive. The CTA system is simple to set up and includes sophisticated software to assist in network maintenance and troubleshooting. Replacement components are open source and readily available, even on Amazon! This allows the system to be easily supported by trained railroad personnel, eliminating the need for constant reliance on the system provider.