What are the factors that may affect the accuracy of Real Time Information?


Operational considerations

With such an extensive bus system, technical problems or operational disruptions can sometimes occur. Unanticipated problems such as a road closure or a mechanical problem can sometimes affect bus services. Occasional incidents can occur where a street is closed, for example on St Patrick’s Day for a march or a big sporting occasion. In such cases, bus inspectors sometimes need to make a last minute change to scheduled bus services and it may not always be possible to reflect this on individual signs. The real time system was developed to respond to service disruptions as accurately as possible however, some disruptions could still affect the accuracy of the prediction.

Software and communication considerations

Occasionally a fault may occur in communications between the central server and the on-bus equipment. Sometimes software updates may be required for new services and schedules which can momentarily disrupt real time information.