Relative criteria Derailment Causes High (Advanced training for C11) Average (Intermediate training for C11) Low (Basic training for C11) Distance between #1 equipment IF NOT HIGH: Distance between #1 IF NOT HIGH OR AVERAGE: inspections* 805 km (500 miles) or equipment inspections* over 805 km Maximum distance between #1A** less AND (500 miles) AND AND equipment inspections Maximum distance between #1A** OR Maximum distance between #1A** AND over 805 km (500 miles) and 322 km C1 equipment inspections 805 km Basic*** equipment inspections 805 km (200 miles), respectively. C2 (500 miles) and 322 km (200 miles), (500 miles) and 322 km (200 miles), Distance to truck hunting detector respectively. respectively. C3 over 161 km (100 miles), Distance to truck hunting detector Distance to truck hunting detector C4 Distance to wayside inspection 80.5 km (50 miles) or less, between 80.5 km (50 miles) and 161 km system over 80.5 km (50 miles). C5 (100 miles), Distance to wayside inspection system 40.2 km (25 or less, Distance to wayside inspection system between 40.2 km (25 miles) and 80.5 km Automated visual inspection system (50 miles). within the corridor. Frequent track inspections (1 or more IF NOT HIGH: Average track inspections IF NOT HIGH OR AVERAGE: Basic per week) AND frequent rail ultrasonic (2 to 4 per month) OR average rail track inspections (1 or less per C7 inspections (15 or more per year). ultrasonic inspections (6 to 14 per year). month) OR basic rail ultrasonic inspections (5 or less per year). Frequent switch inspections and IF NOT HIGH: Average switch IF NOT HIGH OR AVERAGE: Basic maintenance (1 or more per week) inspections and maintenance (2 to 4 per switch inspections and maintenance C8 AND snow melters/blowers in place. month) OR snow melters/blowers in (1 or less per month) AND no snow place. melters/blowers in place. Frequent track inspections (1 or more IF NOT HIGH: Average track inspections IF NOT HIGH OR AVERAGE: C9 per week). (2 to 4 per month). track inspections (1 or less per month).
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).
1-s2.0-S2213624X17300792-mmc1.docx