49 CFR Appendix G to Part 222 - Excess Risk Estimates for Public Highway-Rail Grade Crossings

Ban Effects/Train Horn Effectiveness

[Summary table]

Warning type	Excess risk estimate
Nation (Except Florida East Coast Railway and Chicago Region Crossings)
Passive	74.9.
Flashers only	30.9.
Flashers with gates	66.8.
Florida East Coast Railway Crossings
Flashers with gates	90.9.
Chicago Region Crossings
Passive	To be determined.
Flashers only	To be determined.
Flashers with gates	To be determined.

Note One:

The warning type column reflects primary warning device types. FRA is aware that a variety of arrangements are in place at individual crossings.

Note Two:

The “excess risk estimate” is a figure that represents the amount by which collision frequency has been estimated to increase when routine locomotive horn sounding is restricted at public highway-rail grade crossings.

[74 FR 46394, Sept. 9, 2009]