Control of structural risks arising from track replacement

Metronet's extensive programme of ballasted track replacements on London Underground lines causes a large number of high-consequence, low-probability structural risks. (The name ‘Metronet’ has recently ceased being used.) The acceptable level of risk is discussed. Many of the risks involve small temporary adverse changes, and it is shown that these are not acceptable simply because they are small. Economical mitigations of risk, involving reasoning or modest modification of the conditions during the track replacement, are described for situations where calculation alone cannot demonstrate an acceptable level of risk. (A)

• Authors:
  • BAILEY, R P
• Publication Date: 2009

Language

• English

Media Info

• Pagination: 149-155
• Serial:
  • TRANSPORT (PROCEEDINGS OF THE ICE)
  • Volume: 162
  • Issue Number: TR3

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Coarse aggregates; General surface features of the earth; Geomorphology; Maintenance; Railroad tracks; Risk assessment; Subways
• Geographic Terms: United Kingdom
• ITRD Terms: 4559: Coarse aggregate; 226: Cost benefit analysis; 3847: Maintenance; 9129: Risk assessment; 4076: Structure (geomorphol); 1191: Underground railway; 8119: United Kingdom
• Subject Areas: Maintenance and Preservation; I60: Maintenance; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01141215
• Record Type: Publication
• Source Agency: TRL
• Files: ITRD
• Created Date: Sep 30 2009 9:11AM