In a land where we find not only one lane bridges, but one lane bridges shared with a railway and one lane roads carved out of a cliff spanning multiple blind corners, I didn't think the Kiwis could outdo themselves in the area of shared transportation use. But they did. I learned that in Gisborne, there is a level railway crossing in the middle of the airport runway!
Apparently, the air traffic controllers in Gisborne are also train controllers. The train normally has the right of way (because it's bigger and heavier and harder to stop), but in an emergency the air traffic controllers have the ability to signal a train to stop and not cross the runway.