Microprocessor-based test equipment for automated mass transit

The application of the microprocessor in test equipment has affected the design of test systems for mass transit. Today, the test equipment is as sophisticated as the equipment that it tests. The increased speed that comes with the new technology has allowed testing to evolve from simple signal checking to system testing and monitoring of results. Computer links to printers and other display devices facilitate communications and accurate documentation of the results. These advances mean that it is now possible to perform sequential tests on Automated Train Control systems during manufacture, pre-service operation and in-service operation.