A (small) number of people cycle to work at Airservices, I'm occasionally one of them. The slog up Operations Rd into a howling northerly (or, worse, into a southerly when you're going home) can be a challenge, and those conditions happen a lot. Airports are usually built in the windiest places for some reason!!
Relying on only a bicycle to get to work? It's possible, but you need to be hardier than I. Melbourne winters aren't much fun. I pick and choose my days and drive when it looks unsuitable.