Second of two parts Part one of this report appeared Tuesday, Sept. 5 EFFINGHAM, Ill. —The latest round of tests investigating ways to ensure trains always activate track circuits — the process known as “shunt” — involves shunt-enhancing antennas mounted on both trucks of a state-owned locomotive in Amtrak service in California. Here’s how the […]
Seeking answers on ‘loss of shunt:’ Special Report
