inspection vehicles in front of trains. C9 Frequent track inspections (1 or more per week) OR inspection vehicles in of trains. IF NOT HIGH: No inspection vehicles AND average track inspections (2 to 4 per month). IF NOT HIGH OR AVERAGE: No inspection vehicles AND basic track inspections (1 or less per month). C11 Advanced training required for combinations of high speeds, train dynamics, grades. Intermediate training required for increased traffic, important structures, goods transported, etc. Basic standard of personnel training, adequate for safe operations under average circumstances. *Centralized Traffic Control (CTC) Table 8 Safety Measures Factor Criteria for derailment causes C1 through C11 (except C10) – for
Debris flow or snow avalanches inspection vehicles in front of trains OR Slide fence present AND CTC present IF NOT HIGH: No inspection vehicles, no fence. CTC present. IF NOT HIGH OR AVERAGE: No inspection vehicles, no fence, no CTC present. River erosion CTC present AND inspection vehicles in of trains OR frequent track inspections (1 or more per week) IF NOT HIGH: CTC present and average inspections (2 to 4 per month) IF NOT HIGH OR AVERAGE: No CTC and Basic to average track inspections (4 or less per month) Avulsion inspection vehicles in front of trains OR Slump/washout detector OR CTC present AND frequent track inspections (1 or more per week). IF NOT HIGH: CTC present AND average inspections (2 to 4 per month). IF NOT HIGH OR AVERAGE: No CTC AND basic track inspections (1 or less per month). *Centralized Traffic Control (CTC) Table 9 Safety Measures Factor Criteria for derailment causes C10 – for
Derailment Causes Relative criteria High (Advanced training for C11) Average (Intermediate training for C11) Low (Basic training for C11) C1 C2 C3 C4 C5 Distance between #1 equipment inspections* 805 km (500 miles) or less AND Maximum distance between #1A** OR equipment inspections 805 km (500 miles) and 322 km (200 miles), respectively. Distance to truck hunting detector 80.5 km (50 miles) or less, Distance to wayside inspection system 40.2 km (25 or less, Automated visual inspection system within the corridor. IF NOT HIGH: Distance between #1 equipment inspections* over 805 km (500 miles) AND Maximum distance between #1A** AND Basic*** equipment inspections 805 km (500 miles) and 322 km (200 miles), respectively. Distance to truck hunting detector between 80.5 km (50 miles) and 161 km (100 miles), Distance to wayside inspection system between 40.2 km (25 miles) and 80.5 km (50 miles). IF NOT HIGH OR AVERAGE: Maximum distance between #1A** AND equipment inspections over 805 km (500 miles) and 322 km (200 miles), respectively. Distance to truck hunting detector over 161 km (100 miles), Distance to wayside inspection system over 80.5 km (50 miles). C7 Frequent track inspections (1 or more per week) AND frequent rail ultrasonic inspections (15 or more per year). IF NOT HIGH: Average track inspections (2 to 4 per month) OR average rail ultrasonic inspections (6 to 14 per year). IF NOT HIGH OR AVERAGE: Basic track inspections (1 or less per month) OR basic rail ultrasonic inspections (5 or less per year). C8 Frequent switch inspections and maintenance (1 or more per week) AND snow melters/blowers in place. IF NOT HIGH: Average switch inspections and maintenance (2 to 4 per month) OR snow melters/blowers in place. IF NOT HIGH OR AVERAGE: Basic switch inspections and maintenance (1 or less per month) AND no snow melters/blowers in place. C9 Frequent track inspections (1 or more per week). IF NOT HIGH: Average track inspections (2 to 4 per month). IF NOT HIGH OR AVERAGE: track inspections (1 or less per month).
C11 Advanced training required for combinations of high speeds, train dynamics, grades. Intermediate training required for increased traffic, important structures, goods transported, etc. Basic standard of personnel training, adequate for safe operations under average circumstances. *Technical inspection and maintenance at shop **Detailed inspection at yard *** Walk-by inspection Table 13 Safety Measures Factor Criteria for derailment causes C1 through C11 (except C10) – for
Section A Section B Value Justification Value Justification C1 ni 1 Conditions present along the section 1 Conditions present the section TSF 2.5 Table 4 for Class 5 1 4 for Class 2 ATF(h) 1 Table 2 and Table 3 for Very High train frequency 1 Table 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium SMF(h) 0.2 7 and Table 8 - High 0.2 Table 7 and Table 8 – High hi 0.5 0.3 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use value of 1 ATF(f) 6 Table 2 and Table 10 for Very High train frequency 0.5 Table 2 and Table 10 for Very Low train frequency RTWF 1 11 - Heavy rail, CWR 4 11 - Light and bolted rail SMF(f) 0.5 Table 12 and Table 13 - High 1 Table 12 and Table 13 – Average fi 3 2 Hi 1.5 0.6 C2 ni 1 Conditions present along the section 1 Conditions present along the section TSF 2.5 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 1 2 and Table 3 for Very High train frequency 1 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium SMF(h) 0.2 Table 7 and Table 8 - High 0.2 7 and Table 8 – High hi 0.5 0.3 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 6 Table 2 and Table 10 for Very High train frequency 0.5 Table 2 and Table 10 for Very Low train frequency RTWF 1 11 - Heavy rail, CWR 1 11 - Light and bolted rail SMF(f) 0.5 Table 12 and Table 13 - High 1 Table 12 and Table 13 – Average fi 3 0.5 Hi 1.5 0.15 C3 ni 1 Conditions present along the section 1 Conditions present the section
TSF 2.5 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 1 2 and Table 3 for Very High train frequency 1 Table 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium SMF(h) 1 Table 7 and Table 8 - High 1 Table 7 and Table 8- High hi 2.5 1.5 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 10 Table 2 and Table 10 for Very High train frequency 0.5 Table 2 and Table 10 for Very Low train frequency RTWF 1 11 - Heavy rail, CWR 4 Table 11 - Light and bolted rail SMF(f) 0.5 Table 12 and Table 13 - High 1 Table 12 and Table 13 – Average fi 5 2 Hi 12.5 3 C4 ni 1 Conditions present along the section 1 Conditions present along the section TSF 2.5 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 1 2 and Table 3 for Very High train frequency 1 Table 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium SMF(h) 0.2 Table 7 and Table 8 - High 0.2 Table 7 and Table 8- High hi 0.5 0.3 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 6 2 and Table 10 for Very High train frequency 0.5 Table 2 and Table 10 for Very Low train frequency RTWF 1 Table 11 - Heavy rail, CWR 4 Table 11 - Light and bolted rail SMF(f) 0.5 12 and Table 13 - High 1 Table 12 and Table 13 – Average fi 3 2 Hi 1.5 0.6 C5 ni 1 Conditions present along the section 1 Conditions present along the section TSF 8 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 1 Table 2 and Table 3 for Very High train frequency 1 Table 2 and Table 3 for Very Low train frequency
CGF 1 Table 5 and Table 6 - Low 1.2 Table 5 and Table 6 – Medium SMF(h) 0.3 Table 7 and Table 8 - High 1 7 and Table 8 – Average hi 2.4 1.2 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 10 Table 2 and Table 10 for Very High train frequency 0.5 2 and Table 10 for Very Low train frequency RTWF 1 Table 11 - Heavy rail, CWR 4 Table 11 - Light and bolted rail SMF(f) 0.5 Table 12 and Table 13 - High 1 12 and Table 13 – Average fi 5 2 Hi 12 2.4 C6 ni 1 Conditions present along the section 1 Conditions present along the section TSF 2 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 4 Table 2 and Table 3 for Very High train frequency 0.8 Table 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium SMF(h) 0.2 Table 7 and Table 8 - High 1 Table 7 and Table 8 – Average hi 1.6 1.2 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 6 2 and Table 10 for Very High train frequency 0.5 Table 2 and Table 10 for Very Low train frequency RTWF 1 Table 11 - Heavy rail, CWR 10 Table 11 - Light and bolted rail SMF(f) 1 Table 12 1 Table 12 fi 6 5 Hi 9.6 6 C7 ni 1 Conditions present along the section 1 Conditions present along the section TSF 2 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 4 Table 2 and Table 3 for Very High train frequency 0.8 Table 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.2 5 and Table 6 – Medium SMF(h) 0.2 7 and Table 8 - High 0.2 Table 7 and Table 8 – High hi 1.6 0.192
TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 10 2 and Table 10 for Very High train frequency 0.5 Table 2 and Table 10 for Very Low train frequency RTWF 1 Table 11 - Heavy rail, CWR 10 Table 11 - Light and bolted rail SMF(f) 0.5 Table 12 and Table 13 - High 1 Table 12 and Table 13 – Average fi 5 5 Hi 8 0.96 C8 ni 2 Table 17 0 Table 17 TSF 2 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 4.5 2 and Table 3 for Very High train frequency 2 Table 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium SMF(h) 0.5 7 and Table 8 - High 2 7 and Table 8 – Low hi 4.5 6 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 2 Table 2 and Table 10 for Very High train frequency 0.8 Table 2 and Table 10 for Very Low train frequency RTWF 1 Table 11 - Heavy rail, CWR 1 Table 11 - Light and bolted rail SMF(f) 1 Table 12 and Table 13 - Average 1 Not Applicable (no turnouts) - fixed value of 1 (indiferent) fi 2 0.8 Hi 18 0 C9 ni 1 Conditions present along the section 1 Conditions present the section TSF 2.5 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 6 Table 2 and Table 3 for Very High train frequency 0.5 Table 2 and Table 3 for Very Low train frequency CGF 1 Table 5 and Table 6 - Low 1.5 5 and Table 6 – Medium SMF(h) 0.2 Table 7 and Table 8 - High 0.2 7 and Table 8 – High hi 3 0.15 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 1 Table 2 and Table 10 for Very High train frequency 1 Table 2 and Table 10 for Very Low train frequency
RTWF 1 11 - Heavy rail, CWR 1 Table 11 - Light and bolted rail SMF(f) 0.5 Table 12 and Table 13 - High 1 Table 12 and Table 13 – Average fi 0.5 1 Hi 1.5 0.15 C10 ni 2.1 Table 18 and Table 19 no history of culvert failures (2 culverts), flooding or settlement. 2.7 18 and Table 19 for moderate activity of steep slope cuts and avalanches in the past TSF 2.5 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 6 Table 2 and Table 3 for Very High train frequency 0.5 Table 2 and Table 3 for Very Low train frequency CGF 1 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium SMF(h) 1.1 For the ground hazards present Table 7 and Table 9 - average of High for settlement, average for culverts and low for flooding 0.2 For the ground hazards present Table 7 and Table 9 - High for steep slope cuts and avalanche areas (inspection vehicles in front of trains) hi 16.5 0.15 TF 1 Annual analysis - use fixed value of 1 1 Annual analysis - use fixed value of 1 ATF(f) 1 Table 2 and Table 10 for Very High train frequency 1 Table 2 and Table 10 for Very Low train frequency RTWF 1 Table 11 - Heavy rail, CWR 1 Table 11 - Light and bolted rail SMF(f) 2 For the ground hazards present Table 12 and Table 14 - Low (average of low for settlement, low for culverts and low for flooding) 0.6 For the ground hazards present Table 12 and Table 14 - High for steep slope cuts and average for avalanche areas (scheduled maintenance) fi 2 0.6 Hi 69.3 0.243 ni 1 Conditions present the section 1 Conditions present along the section TSF 1.5 Table 4 for Class 5 1 Table 4 for Class 2 ATF(h) 1 Table 2 and Table 3 for Very High train frequency 1 Table 2 and Table 3 for Very Low train frequency CGF 1 5 and Table 6 - Low 1.5 Table 5 and Table 6 – Medium
SMF(h) 1 Table 7 and Table 8 - Basic level 1 7 and Table 8 - Basic level hi 1.5 1.5 TF 1 Annual analysis - use value of 1 1 Annual analysis - use value of 1 ATF(f) 4 Table 2 and Table 10 for Very High train frequency 0.8 Table 2 and Table 10 for Very Low train frequency RTWF 1 Table 11 - Heavy rail, CWR 1 11 - Light and bolted rail SMF(f) 1 Table 12 and Table 13 - Basic level 1 Table 12 and Table 13 - Basic level fi 4 0.8 Hi 6 1.2 C12 ALc 1.6 Table 21 1.6 Table 21 ALu 1 Table 21 1 21 Enc 1 Table 20 for 1 controlled crossing 0 Table 20 for no controlled crossings Enu 0 Table 20 for no uncontrolled crossings 2 Table 20 for 2 uncontrolled crossings ni 1.6 2 TSF 1.7 Table 15 for Class 5 1 15 for Class 2 ATF(f) 2 Table 16 for Very High train frequency 0.8 Table 16 for Very Low train frequency fi 3.4 0.8 Hi 5.44 1.6 Hazard Ranking 146.84 16.903 Table 23 Detailed Hazard Ranking for example sections A and B