Should You Assume a Crowded Bus Stop Means a Bus Is Late?
Crowds explain demand more often than delays.
When people see a crowded bus stop, many immediately assume something has gone wrong. Sometimes they are correct. Often they are not.
The hidden mechanism is demand synchronization. Large groups of passengers frequently arrive within narrow time windows because their routines are linked to the same external schedules.
Imagine a bus stop beside a train station. Hundreds of passengers may reach the stop within minutes of a train arrival, creating temporary crowding even when buses are running normally.
A second-order effect occurs when travelers misinterpret crowding as a delay. They may alter their decisions unnecessarily, adding new variability to the system.
People often treat crowds as evidence of disruption. Many crowds are simply evidence that routines are working exactly as expected.
