We don't have synonyms for aid station yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are air station.
(n) :
A temporary facility, such as a tent, set up to provide supplies to participants in endurance events, or first aid and provisions during disasters, military operations, etc.
(n) :
A temporary facility, such as a tent, set up to provide supplies to participants in endurance events, or first aid and provisions during disasters, military operations, etc.