Final answer:
The Training Simulator is the SSS system that provides artificially generated radar and message data for testing and training in conjunction with the automation subsystem.
Step-by-step explanation:
The site support subsystem (SSS) that works in conjunction with the automation subsystem to provide artificially generated radar and inter-facility message data for test, certification, and training is known as the Training Simulator. This tool is integral to ensuring that control systems are thoroughly tested and personnel are well-trained before operational use.
The Training Simulator creates a simulated environment where various scenarios, including navigation, communication, and surveillance, can be reproduced for effective training and system assessment purposes.