In fact, water infiltration is one of the most frequent problems flagged by inspectors from the Federal Transit Administration, who walk the tracks daily to mark defects and areas for improvement.

They will document the external and internal parts of the train and walk the tracks to determine whether there are any track issues.

But for every happy Chinese couple snuggling up for a selfie next to a tuatara there is a grumpy New Zealander who remembers the way things used to be—when you could walk the tracks without running into crowds at every clearing.

Two Metro rail cars on the red line separated from their train near the Twinbrook station Monday morning forcing passengers to offload and walk the tracks to safety.

Comstock requested that she be allowed to shadow several track inspectors while they walk the tracks to learn more about how they document problems.