Final answer:
The train operator is required to stop at the designated 'depot' or resting spot where the runaways could sleep and eat when an express train is routed to the local tracks.
Step-by-step explanation:
When an express train is routed to the local tracks, the train operator is required to stop at the designated 'depot' or resting spot where the runaways could sleep and eat. These depots were often located in out of the way places such as barns and were held by 'station masters' who provided assistance to the runaways. The station masters would send messages to other stations and direct the fugitives on the path to their next stop.