FAST® Test Zones

The FAST Loop is divided into four areas of study featuring numbered specialized test sections divided into specific test zones to evaluate track components, vehicle curving, and suspension performance under heavy haul conditions.

FAST® Test Zones
Numbered sections
19
Study areas
Tie Testing, Track Testing, Rail Studies, Ballast & Bridge Studies
Map legend
Numbered circle: test section number. Open dot: individual test zone.
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