YEAR,MONTH ,CATEGORY ,CANCEL_COUNT,CANCEL_TOTAL,CANCEL_PERCENTAGE ----------,---------------,------------------------------------------------------------,------------,------------,----------------- 2017,JANUARY ,Equipment Availability , 1, 11, 9.1 2023,JANUARY ,Unpreventable , 5, 10, 50 2018,JANUARY ,Crew/Engineer Availability , 8, 30, 26.7 2018,JANUARY ,Equipment Availability , 7, 30, 23.3 2018,JANUARY ,Mechanical , 14, 30, 46.7 2018,JANUARY ,Unpreventable , 1, 30, 3.3 2019,JANUARY ,Crew/Engineer Availability , 1, 13, 7.7 2019,JANUARY ,Human Factor , 1, 13, 7.7 2019,JANUARY ,Mechanical , 6, 13, 46.2 2019,JANUARY ,Unpreventable , 5, 13, 38.5 2020,JANUARY ,Crew/Engineer Availability , 1, 27, 3.7 2020,JANUARY ,Equipment Availability , 2, 27, 7.4 2020,JANUARY ,Human Factor , 3, 27, 11.1 2020,JANUARY ,Mechanical , 13, 27, 48.1 2020,JANUARY ,Unpreventable , 8, 27, 29.6 2021,JANUARY ,Equipment Availability , 1, 23, 4.3 2021,JANUARY ,Human Factor , 4, 23, 17.4 2021,JANUARY ,Mechanical , 17, 23, 73.9 2021,JANUARY ,Unpreventable , 1, 23, 4.3 2022,JANUARY ,Carryover/Other , 2, 89, 2.2 2022,JANUARY ,Crew/Engineer Availability , 56, 89, 62.9 2022,JANUARY ,Equipment Availability , 2, 89, 2.2 2022,JANUARY ,Human Factor , 2, 89, 2.2 2022,JANUARY ,Mechanical , 24, 89, 27 2022,JANUARY ,Unpreventable , 3, 89, 3.4 2023,JANUARY ,Human Factor , 1, 10, 10 2023,JANUARY ,Mechanical , 4, 10, 40 2017,JANUARY ,Mechanical , 10, 11, 90.9 2017,FEBRUARY ,Crew/Engineer Availability , 5, 16, 31.3 2023,FEBRUARY ,Unpreventable , 1, 17, 5.9 2017,FEBRUARY ,Human Factor , 1, 16, 6.3 2017,FEBRUARY ,Mechanical , 5, 16, 31.3 2017,FEBRUARY ,Unpreventable , 3, 16, 18.8 2018,FEBRUARY ,Crew/Engineer Availability , 10, 17, 58.8 2018,FEBRUARY ,Equipment Availability , 1, 17, 5.9 2018,FEBRUARY ,Human Factor , 2, 17, 11.8 2018,FEBRUARY ,Mechanical , 4, 17, 23.5 2019,FEBRUARY ,AMTRAK , 1, 24, 4.2 2019,FEBRUARY ,Carryover/Other , 1, 24, 4.2 2019,FEBRUARY ,Crew/Engineer Availability , 3, 24, 12.5 2019,FEBRUARY ,Equipment Availability , 1, 24, 4.2 2019,FEBRUARY ,Human Factor , 1, 24, 4.2 2019,FEBRUARY ,Infrastructure Engineering , 7, 24, 29.2 2019,FEBRUARY ,Mechanical , 5, 24, 20.8 2019,FEBRUARY ,Technologies , 1, 24, 4.2 2019,FEBRUARY ,Unpreventable , 4, 24, 16.7 2020,FEBRUARY ,Human Factor , 1, 9, 11.1 2020,FEBRUARY ,Mechanical , 5, 9, 55.6 2020,FEBRUARY ,Other Railroads , 1, 9, 11.1 2020,FEBRUARY ,Unpreventable , 2, 9, 22.2 2021,FEBRUARY ,Crew/Engineer Availability , 2, 12, 16.7 2021,FEBRUARY ,Equipment Availability , 1, 12, 8.3 2021,FEBRUARY ,Mechanical , 5, 12, 41.7 2021,FEBRUARY ,Unpreventable , 4, 12, 33.3 2022,FEBRUARY ,Crew/Engineer Availability , 4, 20, 20 2022,FEBRUARY ,Human Factor , 1, 20, 5 2022,FEBRUARY ,Mechanical , 9, 20, 45 2022,FEBRUARY ,Other Railroads , 1, 20, 5 2022,FEBRUARY ,Unpreventable , 5, 20, 25 2023,FEBRUARY ,Mechanical , 11, 17, 64.7 2023,FEBRUARY ,Other Railroads , 5, 17, 29.4 2017,FEBRUARY ,Equipment Availability , 2, 16, 12.5 2017,MARCH ,Crew/Engineer Availability , 5, 12, 41.7 2023,MARCH ,Unpreventable , 4, 13, 30.8 2017,MARCH ,Mechanical , 5, 12, 41.7 2017,MARCH ,Unpreventable , 1, 12, 8.3 2018,MARCH ,Crew/Engineer Availability , 13, 144, 9 2018,MARCH ,Human Factor , 3, 144, 2.1 2018,MARCH ,Mechanical , 13, 144, 9 2018,MARCH ,Unpreventable , 115, 144, 79.9 2019,MARCH ,Crew/Engineer Availability , 9, 14, 64.3 2019,MARCH ,Human Factor , 1, 14, 7.1 2019,MARCH ,Infrastructure Engineering , 2, 14, 14.3 2019,MARCH ,Mechanical , 2, 14, 14.3 2020,MARCH ,Crew/Engineer Availability , 6, 8, 75 2020,MARCH ,Mechanical , 2, 8, 25 2021,MARCH ,Human Factor , 1, 13, 7.7 2021,MARCH ,Infrastructure Engineering , 2, 13, 15.4 2021,MARCH ,Mechanical , 10, 13, 76.9 2022,MARCH ,Human Factor , 1, 12, 8.3 2022,MARCH ,Mechanical , 8, 12, 66.7 2022,MARCH ,Unpreventable , 3, 12, 25 2023,MARCH ,Mechanical , 9, 13, 69.2 2017,MARCH ,Infrastructure Engineering , 1, 12, 8.3 2017,APRIL ,Crew/Engineer Availability , 2, 12, 16.7 2017,APRIL ,Human Factor , 1, 12, 8.3 2017,APRIL ,Mechanical , 3, 12, 25 2017,APRIL ,Other , 3, 12, 25 2017,APRIL ,Unpreventable , 3, 12, 25 2018,APRIL ,Crew/Engineer Availability , 34, 51, 66.7 2018,APRIL ,Human Factor , 3, 51, 5.9 2018,APRIL ,Mechanical , 10, 51, 19.6 2018,APRIL ,Other , 1, 51, 2 2018,APRIL ,Unpreventable , 3, 51, 5.9 2019,APRIL ,Crew/Engineer Availability , 12, 16, 75 2019,APRIL ,Infrastructure Engineering , 1, 16, 6.3 2019,APRIL ,Mechanical , 2, 16, 12.5 2019,APRIL ,Unpreventable , 1, 16, 6.3 2020,APRIL ,Crew/Engineer Availability , 10, 13, 76.9 2020,APRIL ,Human Factor , 1, 13, 7.7 2020,APRIL ,Mechanical , 1, 13, 7.7 2020,APRIL ,Other Railroads , 1, 13, 7.7 2021,APRIL ,Equipment Availability , 1, 18, 5.6 2021,APRIL ,Human Factor , 2, 18, 11.1 2021,APRIL ,Mechanical , 11, 18, 61.1 2021,APRIL ,Other Railroads , 3, 18, 16.7 2021,APRIL ,Unpreventable , 1, 18, 5.6 2022,APRIL ,Human Factor , 1, 10, 10 2022,APRIL ,Infrastructure Engineering , 1, 10, 10 2022,APRIL ,Mechanical , 7, 10, 70 2022,APRIL ,Unpreventable , 1, 10, 10 2023,APRIL ,Human Factor , 1, 13, 7.7 2023,APRIL ,Mechanical , 10, 13, 76.9 2023,APRIL ,Other Railroads , 1, 13, 7.7 2023,APRIL ,Unpreventable , 1, 13, 7.7 2017,MAY ,Crew/Engineer Availability , 3, 11, 27.3 2023,MAY ,Mechanical , 5, 6, 83.3 2017,MAY ,Mechanical , 6, 11, 54.5 2017,MAY ,Unpreventable , 1, 11, 9.1 2018,MAY ,Crew/Engineer Availability , 27, 51, 52.9 2018,MAY ,Human Factor , 5, 51, 9.8 2018,MAY ,Mechanical , 3, 51, 5.9 2018,MAY ,Other Railroads , 11, 51, 21.6 2018,MAY ,Unpreventable , 5, 51, 9.8 2019,MAY ,AMTRAK , 1, 37, 2.7 2019,MAY ,Crew/Engineer Availability , 24, 37, 64.9 2019,MAY ,Equipment Availability , 1, 37, 2.7 2019,MAY ,Human Factor , 1, 37, 2.7 2019,MAY ,Mechanical , 1, 37, 2.7 2019,MAY ,Other Railroads , 7, 37, 18.9 2019,MAY ,Technologies , 1, 37, 2.7 2019,MAY ,Unpreventable , 1, 37, 2.7 2020,MAY ,Crew/Engineer Availability , 4, 13, 30.8 2020,MAY ,Human Factor , 4, 13, 30.8 2020,MAY ,Mechanical , 3, 13, 23.1 2020,MAY ,Unpreventable , 2, 13, 15.4 2021,MAY ,Equipment Availability , 1, 29, 3.4 2021,MAY ,Mechanical , 9, 29, 31 2021,MAY ,Unpreventable , 19, 29, 65.5 2022,MAY ,Human Factor , 2, 12, 16.7 2022,MAY ,Mechanical , 8, 12, 66.7 2022,MAY ,Other Railroads , 2, 12, 16.7 2023,MAY ,Infrastructure Engineering , 1, 6, 16.7 2017,MAY ,Human Factor , 1, 11, 9.1 2017,JUNE ,Crew/Engineer Availability , 7, 18, 38.9 2023,JUNE ,Unpreventable , 30, 34, 88.2 2017,JUNE ,Unpreventable , 1, 18, 5.6 2018,JUNE ,Crew/Engineer Availability , 17, 24, 70.8 2018,JUNE ,Mechanical , 6, 24, 25 2018,JUNE ,Unpreventable , 1, 24, 4.2 2019,JUNE ,Crew/Engineer Availability , 26, 37, 70.3 2019,JUNE ,Equipment Availability , 3, 37, 8.1 2019,JUNE ,Mechanical , 6, 37, 16.2 2019,JUNE ,Technologies , 1, 37, 2.7 2019,JUNE ,Unpreventable , 1, 37, 2.7 2020,JUNE ,Mechanical , 4, 4, 100 2021,JUNE ,Equipment Availability , 1, 12, 8.3 2021,JUNE ,Human Factor , 2, 12, 16.7 2021,JUNE ,Infrastructure Engineering , 2, 12, 16.7 2021,JUNE ,Mechanical , 6, 12, 50 2021,JUNE ,Unpreventable , 1, 12, 8.3 2022,JUNE ,Crew/Engineer Availability , 24, 39, 61.5 2022,JUNE ,Human Factor , 1, 39, 2.6 2022,JUNE ,Infrastructure Engineering , 1, 39, 2.6 2022,JUNE ,Mechanical , 7, 39, 17.9 2022,JUNE ,Unpreventable , 6, 39, 15.4 2023,JUNE ,Infrastructure Engineering , 1, 34, 2.9 2023,JUNE ,Mechanical , 3, 34, 8.8 2017,JUNE ,Mechanical , 10, 18, 55.6 2017,JULY ,Crew/Engineer Availability , 23, 37, 62.2 2023,JULY ,Unpreventable , 5, 19, 26.3 2017,JULY ,Unpreventable , 1, 37, 2.7 2018,JULY ,Carryover/Other , 1, 70, 1.4 2018,JULY ,Crew/Engineer Availability , 39, 70, 55.7 2018,JULY ,Equipment Availability , 11, 70, 15.7 2018,JULY ,Human Factor , 6, 70, 8.6 2018,JULY ,Mechanical , 8, 70, 11.4 2018,JULY ,Unpreventable , 5, 70, 7.1 2019,JULY ,Crew/Engineer Availability , 12, 48, 25 2019,JULY ,Equipment Availability , 7, 48, 14.6 2019,JULY ,Human Factor , 1, 48, 2.1 2019,JULY ,Mechanical , 9, 48, 18.8 2019,JULY ,Other Railroads , 1, 48, 2.1 2019,JULY ,Technologies , 4, 48, 8.3 2019,JULY ,Unpreventable , 14, 48, 29.2 2020,JULY ,Crew/Engineer Availability , 10, 47, 21.3 2020,JULY ,Equipment Availability , 8, 47, 17 2020,JULY ,Human Factor , 1, 47, 2.1 2020,JULY ,Infrastructure Engineering , 4, 47, 8.5 2020,JULY ,Mechanical , 12, 47, 25.5 2020,JULY ,Other Railroads , 1, 47, 2.1 2020,JULY ,Unpreventable , 11, 47, 23.4 2021,JULY ,Crew/Engineer Availability , 3, 48, 6.3 2021,JULY ,Equipment Availability , 2, 48, 4.2 2021,JULY ,Human Factor , 2, 48, 4.2 2021,JULY ,Infrastructure Engineering , 1, 48, 2.1 2021,JULY ,Mechanical , 13, 48, 27.1 2021,JULY ,Other Railroads , 2, 48, 4.2 2021,JULY ,Unpreventable , 25, 48, 52.1 2022,JULY ,Crew/Engineer Availability , 4, 26, 15.4 2022,JULY ,Equipment Availability , 1, 26, 3.8 2022,JULY ,Mechanical , 13, 26, 50 2022,JULY ,Unpreventable , 8, 26, 30.8 2023,JULY ,Carryover/Other , 1, 19, 5.3 2023,JULY ,Equipment Availability , 1, 19, 5.3 2023,JULY ,Human Factor , 1, 19, 5.3 2023,JULY ,Mechanical , 10, 19, 52.6 2023,JULY ,Other Railroads , 1, 19, 5.3 2017,JULY ,Mechanical , 13, 37, 35.1 2017,AUGUST ,Crew/Engineer Availability , 28, 42, 66.7 2023,AUGUST ,Unpreventable , 7, 17, 41.2 2017,AUGUST ,Human Factor , 1, 42, 2.4 2017,AUGUST ,Infrastructure Engineering , 3, 42, 7.1 2017,AUGUST ,Mechanical , 9, 42, 21.4 2018,AUGUST ,Crew/Engineer Availability , 31, 61, 50.8 2018,AUGUST ,Equipment Availability , 17, 61, 27.9 2018,AUGUST ,Human Factor , 1, 61, 1.6 2018,AUGUST ,Mechanical , 9, 61, 14.8 2018,AUGUST ,Other Railroads , 2, 61, 3.3 2018,AUGUST ,Technologies , 1, 61, 1.6 2019,AUGUST ,Crew/Engineer Availability , 8, 31, 25.8 2019,AUGUST ,Equipment Availability , 1, 31, 3.2 2019,AUGUST ,Human Factor , 2, 31, 6.5 2019,AUGUST ,Mechanical , 4, 31, 12.9 2019,AUGUST ,Technologies , 1, 31, 3.2 2019,AUGUST ,Unpreventable , 15, 31, 48.4 2020,AUGUST ,Crew/Engineer Availability , 17, 137, 12.4 2020,AUGUST ,Equipment Availability , 3, 137, 2.2 2020,AUGUST ,Human Factor , 1, 137, .7 2020,AUGUST ,Mechanical , 8, 137, 5.8 2020,AUGUST ,Unpreventable , 108, 137, 78.8 2021,AUGUST ,Mechanical , 14, 46, 30.4 2021,AUGUST ,Other Railroads , 28, 46, 60.9 2021,AUGUST ,Unpreventable , 4, 46, 8.7 2022,AUGUST ,Carryover/Other , 1, 24, 4.2 2022,AUGUST ,Mechanical , 11, 24, 45.8 2022,AUGUST ,Other Railroads , 8, 24, 33.3 2022,AUGUST ,Unpreventable , 4, 24, 16.7 2023,AUGUST ,Human Factor , 1, 17, 5.9 2023,AUGUST ,Mechanical , 9, 17, 52.9 2017,AUGUST ,Equipment Availability , 1, 42, 2.4 2017,SEPTEMBER ,Crew/Engineer Availability , 8, 23, 34.8 2023,SEPTEMBER ,Unpreventable , 10, 19, 52.6 2017,SEPTEMBER ,Infrastructure Engineering , 1, 23, 4.3 2017,SEPTEMBER ,Mechanical , 5, 23, 21.7 2017,SEPTEMBER ,Unpreventable , 7, 23, 30.4 2018,SEPTEMBER ,Crew/Engineer Availability , 24, 38, 63.2 2018,SEPTEMBER ,Equipment Availability , 1, 38, 2.6 2018,SEPTEMBER ,Human Factor , 4, 38, 10.5 2018,SEPTEMBER ,Mechanical , 4, 38, 10.5 2018,SEPTEMBER ,Unpreventable , 5, 38, 13.2 2019,SEPTEMBER ,Crew/Engineer Availability , 16, 26, 61.5 2019,SEPTEMBER ,Infrastructure Engineering , 2, 26, 7.7 2019,SEPTEMBER ,Mechanical , 2, 26, 7.7 2019,SEPTEMBER ,Other Railroads , 1, 26, 3.8 2019,SEPTEMBER ,Technologies , 3, 26, 11.5 2019,SEPTEMBER ,Unpreventable , 2, 26, 7.7 2020,SEPTEMBER ,Crew/Engineer Availability , 8, 20, 40 2020,SEPTEMBER ,Equipment Availability , 2, 20, 10 2020,SEPTEMBER ,Mechanical , 7, 20, 35 2020,SEPTEMBER ,Technologies , 1, 20, 5 2020,SEPTEMBER ,Unpreventable , 2, 20, 10 2021,SEPTEMBER ,AMTRAK , 1, 52, 1.9 2021,SEPTEMBER ,Human Factor , 1, 52, 1.9 2021,SEPTEMBER ,Mechanical , 10, 52, 19.2 2021,SEPTEMBER ,Unpreventable , 40, 52, 76.9 2022,SEPTEMBER ,Mechanical , 7, 20, 35 2022,SEPTEMBER ,Unpreventable , 13, 20, 65 2023,SEPTEMBER ,Carryover/Other , 1, 19, 5.3 2023,SEPTEMBER ,Mechanical , 8, 19, 42.1 2017,SEPTEMBER ,Human Factor , 2, 23, 8.7 2017,OCTOBER ,Carryover/Other , 1, 34, 2.9 2023,OCTOBER ,Unpreventable , 12, 28, 42.9 2017,OCTOBER ,Equipment Availability , 3, 34, 8.8 2017,OCTOBER ,Human Factor , 2, 34, 5.9 2017,OCTOBER ,Mechanical , 5, 34, 14.7 2017,OCTOBER ,Unpreventable , 5, 34, 14.7 2018,OCTOBER ,Crew/Engineer Availability , 17, 24, 70.8 2018,OCTOBER ,Equipment Availability , 1, 24, 4.2 2018,OCTOBER ,Human Factor , 1, 24, 4.2 2018,OCTOBER ,Mechanical , 5, 24, 20.8 2019,OCTOBER ,Crew/Engineer Availability , 5, 17, 29.4 2019,OCTOBER ,Equipment Availability , 1, 17, 5.9 2019,OCTOBER ,Human Factor , 4, 17, 23.5 2019,OCTOBER ,Mechanical , 4, 17, 23.5 2019,OCTOBER ,Other Railroads , 1, 17, 5.9 2019,OCTOBER ,Unpreventable , 2, 17, 11.8 2020,OCTOBER ,Crew/Engineer Availability , 4, 15, 26.7 2020,OCTOBER ,Human Factor , 1, 15, 6.7 2020,OCTOBER ,Mechanical , 8, 15, 53.3 2020,OCTOBER ,Unpreventable , 2, 15, 13.3 2021,OCTOBER ,Crew/Engineer Availability , 2, 18, 11.1 2021,OCTOBER ,Equipment Availability , 1, 18, 5.6 2021,OCTOBER ,Human Factor , 3, 18, 16.7 2021,OCTOBER ,Mechanical , 9, 18, 50 2021,OCTOBER ,Unpreventable , 3, 18, 16.7 2022,OCTOBER ,Infrastructure Engineering , 6, 14, 42.9 2022,OCTOBER ,Mechanical , 6, 14, 42.9 2022,OCTOBER ,Unpreventable , 2, 14, 14.3 2023,OCTOBER ,Human Factor , 4, 28, 14.3 2023,OCTOBER ,Infrastructure Engineering , 1, 28, 3.6 2023,OCTOBER ,Mechanical , 11, 28, 39.3 2017,OCTOBER ,Crew/Engineer Availability , 18, 34, 52.9 2017,NOVEMBER ,Crew/Engineer Availability , 8, 21, 38.1 2023,NOVEMBER ,Unpreventable , 12, 24, 50 2017,NOVEMBER ,Human Factor , 1, 21, 4.8 2017,NOVEMBER ,Mechanical , 8, 21, 38.1 2017,NOVEMBER ,Unpreventable , 2, 21, 9.5 2018,NOVEMBER ,Crew/Engineer Availability , 4, 26, 15.4 2018,NOVEMBER ,Equipment Availability , 1, 26, 3.8 2018,NOVEMBER ,Human Factor , 1, 26, 3.8 2018,NOVEMBER ,Mechanical , 6, 26, 23.1 2018,NOVEMBER ,Technologies , 1, 26, 3.8 2018,NOVEMBER ,Unpreventable , 13, 26, 50 2019,NOVEMBER ,Crew/Engineer Availability , 31, 44, 70.5 2019,NOVEMBER ,Equipment Availability , 5, 44, 11.4 2019,NOVEMBER ,Mechanical , 6, 44, 13.6 2019,NOVEMBER ,Unpreventable , 2, 44, 4.5 2020,NOVEMBER ,Carryover/Other , 1, 35, 2.9 2020,NOVEMBER ,Crew/Engineer Availability , 10, 35, 28.6 2020,NOVEMBER ,Equipment Availability , 1, 35, 2.9 2020,NOVEMBER ,Human Factor , 2, 35, 5.7 2020,NOVEMBER ,Mechanical , 11, 35, 31.4 2020,NOVEMBER ,Unpreventable , 10, 35, 28.6 2021,NOVEMBER ,Crew/Engineer Availability , 4, 39, 10.3 2021,NOVEMBER ,Equipment Availability , 3, 39, 7.7 2021,NOVEMBER ,Human Factor , 4, 39, 10.3 2021,NOVEMBER ,Mechanical , 15, 39, 38.5 2021,NOVEMBER ,Unpreventable , 13, 39, 33.3 2022,NOVEMBER ,Crew/Engineer Availability , 6, 17, 35.3 2022,NOVEMBER ,Human Factor , 3, 17, 17.6 2022,NOVEMBER ,Mechanical , 5, 17, 29.4 2022,NOVEMBER ,Unpreventable , 3, 17, 17.6 2023,NOVEMBER ,Mechanical , 12, 24, 50 2017,NOVEMBER ,Equipment Availability , 2, 21, 9.5 2017,DECEMBER ,Crew/Engineer Availability , 18, 31, 58.1 2023,DECEMBER ,Unpreventable , 4, 13, 30.8 2017,DECEMBER ,Infrastructure Engineering , 1, 31, 3.2 2017,DECEMBER ,Mechanical , 6, 31, 19.4 2017,DECEMBER ,Unpreventable , 2, 31, 6.5 2018,DECEMBER ,Crew/Engineer Availability , 6, 34, 17.6 2018,DECEMBER ,Equipment Availability , 22, 34, 64.7 2018,DECEMBER ,Human Factor , 1, 34, 2.9 2018,DECEMBER ,Mechanical , 5, 34, 14.7 2019,DECEMBER ,Crew/Engineer Availability , 27, 41, 65.9 2019,DECEMBER ,Human Factor , 1, 41, 2.4 2019,DECEMBER ,Mechanical , 9, 41, 22 2019,DECEMBER ,Unpreventable , 4, 41, 9.8 2020,DECEMBER ,Crew/Engineer Availability , 2, 83, 2.4 2020,DECEMBER ,Equipment Availability , 14, 83, 16.9 2020,DECEMBER ,Human Factor , 6, 83, 7.2 2020,DECEMBER ,Mechanical , 12, 83, 14.5 2020,DECEMBER ,Technologies , 5, 83, 6 2020,DECEMBER ,Unpreventable , 44, 83, 53 2021,DECEMBER ,Crew/Engineer Availability , 45, 64, 70.3 2021,DECEMBER ,Equipment Availability , 1, 64, 1.6 2021,DECEMBER ,Human Factor , 1, 64, 1.6 2021,DECEMBER ,Infrastructure Engineering , 2, 64, 3.1 2021,DECEMBER ,Mechanical , 10, 64, 15.6 2021,DECEMBER ,Unpreventable , 5, 64, 7.8 2022,DECEMBER ,Carryover/Other , 4, 30, 13.3 2022,DECEMBER ,Human Factor , 3, 30, 10 2022,DECEMBER ,Mechanical , 14, 30, 46.7 2022,DECEMBER ,Other Railroads , 1, 30, 3.3 2022,DECEMBER ,Unpreventable , 8, 30, 26.7 2023,DECEMBER ,Infrastructure Engineering , 1, 13, 7.7 2023,DECEMBER ,Mechanical , 6, 13, 46.2 2023,DECEMBER ,Other Railroads , 2, 13, 15.4 2017,DECEMBER ,Human Factor , 4, 31, 12.9