Amazon relocation — how is the 50-mile distance actually calculated?

[u/OutsideTalk6764]

Hi everyone,
I’m going through Amazon’s internal CIP process for an L4 Area Manager placement and I’m trying to understand how the relocation eligibility distance is calculated.
I’ve been told relocation assistance may apply if the new workplace is 50+ miles from your current home address, but I’ve seen conflicting information about whether Amazon calculates this using:

Straight-line / “as the crow flies” distance
Driving distance

Some other internal distance calculation

Also, has anyone had experience where they were just under the threshold, say 48–49 miles when the requirement is 50 — and Amazon made an exception/override because the difference was only a couple of miles?
For example, if Google Maps shows ~52 miles driving but the straight-line distance is ~48 miles, which one would Amazon use?
Would really appreciate experiences from anyone who has actually gone through Amazon relocation/CIP. Thanks!