Which two lines are paired in route pairing 5?

Route pairing 5 involves the Lansdale/Doylestown Line and the Paoli/Thorndale Line, making this choice correct. These two lines are paired for operational efficiency and to optimize service by connecting routes that can share track sections, resources, and scheduling. This allows for streamlined service and better connectivity for passengers traveling in those regions of the SEPTA network.

Understanding which lines are paired is crucial for a conductor or engineer trainee as it contributes to knowledge of operational routes, the geographical layout of the rail system, and service coordination. The other choices present different pairs of lines, but they do not correspond to route pairing 5 defined within SEPTA’s operational framework. Each pairing serves specific regions or connects different transit lines, but in this case, they are not the correct pairing as established in the SEPTA system.