In order to provide accurate journey plans, it is valuable to be able to specify realistic connection times between journeys at interchanges that take into account the mode of transport, the detailed topology of the interchange and even the mobility of the user (for example a path suitable for a wheelchair using a lift may take longer). NeTEx allows both default and specific transfers time to be specified for any connection.

NeTEx also permits complex operational rules about journey interchanges to be described so that planned and guaranteed connections can be managed and so that real time systems and real-time journey planners can give accurate advice to users.