Challenges of Vital Overlay System Acquisition
Safety is a top priority of federal agencies, rail transit agencies, railroads, and the public. Acquisition of a new safety-critical or vital rail system requires a thorough specification of functional, operational, maintenance, performance, and program requirements. A comprehensive System Safety Program is required to be implemented and safety quantified for the entire system. Once an acceptable level of system safety has been achieved it must be maintained for the life of that system. What must be considered in the specification for a safety-critical or vital system to be implemented to operate as an overlay to an existing safety-critical or vital system? This paper will look the challenges of specifying the requirements for implementing and verifying system safety of the new vital functions while maintaining the safety of the underlying system. This paper looks at applying Systems Engineering to specifying a specific type of positive train control (PTC) implementation, as an overlay to an existing railroad.
- Record URL:
-
-
Supplemental Notes:
- Abstract used with permission from American Public Transportation Association.
-
Corporate Authors:
American Public Transportation Association
1666 K Street, NW, Suite 1100
Washington, DC United States 20006 -
Authors:
- Martinez, Linda
-
Conference:
- 2013 Rail Conference
- Location: Philadelphia PA, United States
- Date: 2013-6-2 to 2013-6-5
- Publication Date: 2013
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures;
- Pagination: 9p
- Monograph Title: 2013 Rail Conference
Subject/Index Terms
- TRT Terms: Positive train control; Rail transit; Specifications; System safety; Systems engineering
- Subject Areas: Passenger Transportation; Public Transportation; Railroads; Safety and Human Factors; I70: Traffic and Transport; I80: Accident Studies;
Filing Info
- Accession Number: 01502496
- Record Type: Publication
- Files: TRIS
- Created Date: Dec 24 2013 1:09PM