"Schiphol" is of course the name of the largest airport in the Netherlands near Amsterdam. I assume that the name "schipholbord" was invented because the allocation of patients and emergencies to hospital rooms is likened to the allocation of pasengers to erminals at the airport. For any Dutch person this comparison is self-evident. Not so, however for most other countries. If the translation would be focused on the UK the term heathrowboard doen't have the same connotation and impact as it does in Dutch. Hence my creative solution that rhymes and is catchy.