Changes in demand and timetables can affect routing, the volume of transfers at stations, and transfer waiting times. Depending on the scale of these changes, improvements can be widespread or localised. The stations section of the comparison tool helps users assess where the impact is most prominent, whether things are improving, if there are compromises, and how a local change affects the system from a national perspective.

The busyness of trains significantly affects passenger experience. Both the duration and levels of crowding influence how passengers perceive rail services. Proposed timetable changes can be compared to a known baseline to evaluate their effectiveness and identify areas of congestion that may still impact passengers, locally and nationally.

Testing train service specifications and concept timetables is crucial to understanding if the simulated changes meet the design goals. This helps improve rail connectivity and the mobility of communities both locally and regionally by public transport.