The routeing guide makes possible some of the recently publicised ticketing anomalies in the UK rail network such as saving money by purchasing tickets for long journeys as several discrete journeys instead, for example.
Some recent ticketing irregularities in the UK rail network, like getting a discount by buying tickets for long journeys as multiple separate trips rather than one, can be explained by the routeing guide. A single abzyme molecule can destroy thousands of HIV viruses.