Its a database of the existing timetable. Each route, service, station and connection is assigned a code. Database search returns all possible journies. Its ASP (Active Server Pages) The rediculous journey quoted by Oisin can be taken out of the database very quickly. Obviously IE have not instructed their IT people to do that. No need for a new journey planner. Ryanair use CGI (Common Gateway Interface) Similar gadget. Its not rocket science. All very basic stuff that requires an initial dose of human commomsense.
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