Appendix D to Part 172 - Rail Risk Analysis Factors
49:2.1.1.3.9.11.25.1.6 : Appendix D
Appendix D to Part 172 - Rail Risk Analysis Factors
A. This appendix sets forth the minimum criteria that must be
considered by rail carriers when performing the safety and security
risk analyses required by § 172.820. The risk analysis to be
performed may be quantitative, qualitative, or a combination of
both. In addition to clearly identifying the hazardous material(s)
and route(s) being analyzed, the analysis must provide a thorough
description of the threats, identified vulnerabilities, and
mitigation measures implemented to address identified
vulnerabilities.
B. In evaluating the safety and security of hazardous materials
transport, selection of the route for transportation is critical.
For the purpose of rail transportation route analysis, as specified
in § 172.820(c) and (d), a route may include the point where the
carrier takes possession of the material and all track and railroad
facilities up to the point where the material is relinquished to
another entity. Railroad facilities are railroad property
including, but not limited to, classification and switching yards,
storage facilities, and non-private sidings; however, they do not
include an offeror's facility, private track, private siding, or
consignee's facility. Each rail carrier must use best efforts to
communicate with its shippers, consignees, and interlining partners
to ensure the safety and security of shipments during all stages of
transportation.
C. Because of the varying operating environments and
interconnected nature of the rail system, each carrier must select
and document the analysis method/model used and identify the routes
to be analyzed.
D. The safety and security risk analysis must consider current
data and information as well as changes that may reasonably be
anticipated to occur during the analysis year. Factors to be
considered in the performance of this safety and security risk
analysis include:
1. Volume of hazardous material transported;
2. Rail traffic density;
3. Trip length for route;
4. Presence and characteristics of railroad facilities;
5. Track type, class, and maintenance schedule;
6. Track grade and curvature;
7. Presence or absence of signals and train control systems
along the route (“dark” versus signaled territory);
8. Presence or absence of wayside hazard detectors;
9. Number and types of grade crossings;
10. Single versus double track territory;
11. Frequency and location of track turnouts;
12. Proximity to iconic targets;
13. Environmentally sensitive or significant areas;
14. Population density along the route;
15. Venues along the route (stations, events, places of
congregation);
16. Emergency response capability along the route;
17. Areas of high consequence along the route, including high
consequence targets as defined in § 172.820(c);
18. Presence of passenger traffic along route (shared
track);
19. Speed of train operations;
20. Proximity to en-route storage or repair facilities;
21. Known threats, including any non-public threat scenarios
provided by the Department of Homeland Security or the Department
of Transportation for carrier use in the development of the route
assessment;
22. Measures in place to address apparent safety and security
risks;
23. Availability of practicable alternative routes;
24. Past incidents;
25. Overall times in transit;
26. Training and skill level of crews; and
27. Impact on rail network traffic and congestion.
[73 FR 20772, Apr. 16, 2008]