OTTAR is designed to provide an operator with appropriate real time information about their bussing operations. In context a medium size operator runs more that 1,000 trips every day. Data is reported from every bus every 5 seconds. This data represented as coloured dots moving around on a map can be quite overwhelming or noisy, and when it is considered, that generally speaking, in excess of 90% of trips run on time or within the Key Performance Indicator a huge amount of information is published which is not required.

The challenge for the operator is to understand which trips and where in the trip the bus is not running on time, so that they can take immediate remedial action.