49 CFR Appendix A to Part 213, Maximum Allowable Curving Speeds

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Appendix A to Part 213 - Maximum Allowable Curving Speeds

This appendix contains four tables identifying maximum allowing curving speeds based on 3, 4, 5, and 6 inches of unbalance (cant deficiency), respectively.

Table 1 - Three Inches Unbalance

Elevation of outer rail (inches)
0 1/2 1 1 1/2 2 2 1/2 3 3 1/2 4 4 1/2 5 5 1/2 6
Degree of curvature Maximum allowable operating speed (m.p.h.)
0°30′ 93 100 107 113 120 125 131 136 141 146 151 156 160
0°40′ 80 87 93 98 104 109 113 118 122 127 131 135 139
0°50′ 72 77 83 88 93 97 101 106 110 113 117 121 124
1°00′ 65 71 76 80 85 89 93 96 100 104 107 110 113
1°15′ 59 63 68 72 76 79 83 86 89 93 96 99 101
1°30′ 53 58 62 65 69 72 76 79 82 85 87 90 93
1°45′ 49 53 57 61 64 67 70 73 76 78 81 83 86
2°00′ 46 50 53 57 60 63 65 68 71 73 76 78 80
2°15′ 44 47 50 53 56 59 62 64 67 69 71 73 76
2°30′ 41 45 48 51 53 56 59 61 63 65 68 70 72
2°45′ 39 43 46 48 51 53 56 58 60 62 64 66 68
3°00′ 38 41 44 46 49 51 53 56 58 60 62 64 65
3°15′ 36 39 42 44 47 49 51 53 55 57 59 61 63
3°30′ 35 38 40 43 45 47 49 52 53 55 57 59 61
3°45′ 34 37 39 41 44 46 48 50 52 53 55 57 59
4°00′ 33 35 38 40 42 44 46 48 50 52 53 55 57
4°30′ 31 33 36 38 40 42 44 45 47 49 50 52 53
5°00′ 29 32 34 36 38 40 41 43 45 46 48 49 51
5°30′ 28 30 32 34 36 38 39 41 43 44 46 47 48
6°00′ 27 29 31 33 35 36 38 39 41 42 44 45 46
6°30′ 26 28 30 31 33 35 36 38 39 41 42 43 44
7°00′ 25 27 29 30 32 34 35 36 38 39 40 42 43
8°00′ 23 25 27 28 30 31 33 34 35 37 38 39 40
9°00′ 22 24 25 27 28 30 31 32 33 35 36 37 38
10°00′ 21 22 24 25 27 28 29 30 32 33 34 35 36
11°00′ 20 21 23 24 25 27 28 29 30 31 32 33 34
12°00′ 19 20 22 23 24 26 27 28 29 30 31 32 33

Table 2 - Four Inches Unbalance

Elevation of outer rail (inches)
0 1/2 1 1 1/2 2 2 1/2 3 3 1/2 4 4 1/2 5 5 1/2 6
Degree of curvature Maximum allowable operating speed (m.p.h.)
0°30′ 107 113 120 125 131 136 141 146 151 156 160 165 169
0°40′ 93 98 104 109 113 118 122 127 131 135 139 143 146
0°50′ 83 88 93 97 101 106 110 113 117 121 124 128 131
1°00′ 76 80 85 89 93 96 100 104 107 110 113 116 120
1°15′ 68 72 76 79 83 86 89 93 96 99 101 104 107
1°30′ 62 65 69 72 76 79 82 85 87 90 93 95 98
1°45′ 57 61 64 67 70 73 76 78 81 83 86 88 90
2°00′ 53 57 60 63 65 68 71 73 76 78 80 82 85
2°15′ 50 53 56 59 62 64 67 69 71 73 76 78 80
2°30′ 48 51 53 56 59 61 63 65 68 70 72 74 76
2°45′ 46 48 51 53 56 58 60 62 64 66 68 70 72
3°00′ 44 46 49 51 53 56 58 60 62 64 65 67 69
3°15′ 42 44 47 49 51 53 55 57 59 61 63 65 66
3°30′ 40 43 45 47 49 52 53 55 57 59 61 62 64
3°45′ 39 41 44 46 48 50 52 53 55 57 59 60 62
4°00′ 38 40 42 44 46 48 50 52 53 55 57 58 60
4°30′ 36 38 40 42 44 45 47 49 50 52 53 55 56
5°00′ 34 36 38 40 41 43 45 46 48 49 51 52 53
5°30′ 32 34 36 38 39 41 43 44 46 47 48 50 51
6°00′ 31 33 35 36 38 39 41 42 44 45 46 48 49
6°30′ 30 31 33 35 36 38 39 41 42 43 44 46 47
7°00′ 29 30 32 34 35 36 38 39 40 42 43 44 45
8°00′ 27 28 30 31 33 34 35 37 38 39 40 41 42
9°00′ 25 27 28 30 31 32 33 35 36 37 38 39 40
10°00′ 24 25 27 28 29 30 32 33 34 35 36 37 38
11°00′ 23 24 25 27 28 29 30 31 32 33 34 35 36
12°00′ 22 23 24 26 27 28 29 30 31 32 33 34 35

Table 3 - Five Inches Unbalance

Elevation of outer rail (inches)
0 1/2 1 1 1/2 2 2 1/2 3 3 1/2 4 4 1/2 5 5 1/2 6
Degree of curvature Maximum allowable operating speed (m.p.h.)
0°30′ 120 125 131 136 141 146 151 156 160 165 169 173 177
0°40′ 104 109 113 118 122 127 131 135 139 143 146 150 150
0°50′ 93 97 101 106 110 113 117 121 124 128 131 134 137
1°00′ 85 89 93 96 100 104 107 110 113 116 120 122 125
1°15′ 76 79 83 86 89 93 96 99 101 104 107 110 112
1°30′ 69 72 76 79 82 85 87 90 93 95 98 100 102
1°45′ 64 67 70 73 76 78 81 83 86 88 90 93 95
2°00′ 60 63 65 68 71 73 76 78 80 82 85 87 89
2°15′ 56 59 62 64 67 69 71 73 76 78 80 82 84
2°30′ 53 56 59 61 63 65 68 70 72 74 76 77 79
2°45′ 51 53 56 58 60 62 64 66 68 70 72 74 76
3°00′ 49 51 53 56 58 60 62 64 65 67 69 71 72
3°15′ 47 49 51 53 55 57 59 61 63 65 66 68 70
3°30′ 45 47 49 52 53 55 57 59 61 62 64 65 67
3°45′ 44 46 48 50 52 53 55 57 59 60 62 63 65
4°00′ 42 44 46 48 50 52 53 55 57 58 60 61 63
4°30′ 40 42 44 45 47 49 50 52 53 55 56 58 59
5°00′ 38 40 41 43 45 46 48 49 51 52 53 55 56
5°30′ 36 38 39 41 43 44 46 47 48 50 51 52 53
6°00′ 35 36 38 39 41 42 44 45 46 48 49 50 51
6°30′ 33 35 36 38 39 41 42 43 44 46 47 48 49
7°00′ 32 34 35 36 38 39 40 42 43 44 45 46 47
8°00′ 30 31 33 34 35 37 38 39 40 41 42 43 44
9°00′ 28 30 31 32 33 35 36 37 38 39 40 41 42
10°00′ 27 28 29 30 32 33 34 35 36 37 38 39 40
11°00′ 25 27 28 29 30 31 32 33 34 35 36 37 38
12°00′ 24 26 27 28 29 30 31 32 33 34 35 35 36

Table 4 - Six Inches Unbalance

Elevation of outer rail (inches)
0 1/2 1 1 1/2 2 2 1/2 3 3 1/2 4 4 1/2 5 5 1/2 6
Degree of curvature Maximum allowable operating speed (m.p.h.)
0°30′ 131 136 141 146 151 156 160 165 169 173 177 181 185
0°40′ 113 118 122 127 131 135 139 143 146 150 154 157 160
0°50′ 101 106 110 113 117 121 124 128 131 134 137 140 143
1°00′ 93 96 100 104 107 110 113 116 120 122 125 128 131
1°15′ 83 86 89 93 96 99 101 104 107 110 112 115 117
1°30′ 76 79 82 85 87 90 93 95 98 100 102 105 107
1°45′ 70 73 76 78 81 83 86 88 90 93 95 97 99
2°00′ 65 68 71 73 76 78 80 82 85 87 89 91 93
2°15′ 62 64 67 69 71 73 76 78 80 82 84 85 87
2°30′ 59 61 63 65 68 70 72 74 76 77 79 81 83
2°45′ 56 58 60 62 64 66 68 70 72 74 76 77 79
3°00′ 53 56 58 60 62 64 65 67 69 71 72 74 76
3°15′ 51 53 55 57 59 61 63 65 66 68 70 71 73
3°30′ 49 52 53 55 57 59 61 62 64 65 67 69 70
3°45′ 48 50 52 53 55 57 59 60 62 63 65 66 68
4°00′ 46 48 50 52 53 55 57 58 60 61 63 64 65
4°30′ 44 45 47 49 50 52 53 55 56 58 59 60 62
5°00′ 41 43 45 46 48 49 51 52 53 55 56 57 59
5°30′ 39 41 43 44 46 47 48 50 51 52 53 55 56
6°00′ 38 39 41 42 44 45 46 48 49 50 51 52 53
6°30′ 36 38 39 41 42 43 44 46 47 48 49 50 51
7°00′ 35 36 38 39 40 42 43 44 45 46 47 48 49
8°00′ 33 34 35 37 38 39 40 41 42 43 44 45 46
9°00′ 31 32 33 35 36 37 38 39 40 41 42 43 44
10°00′ 29 30 32 33 34 35 36 37 38 39 40 41 41
11°00′ 28 29 30 31 32 33 34 35 36 37 38 39 39
12°00′ 27 28 29 30 31 32 33 34 35 35 36 37 38
[78 FR 16113, Mar. 13, 2013]

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Title 49 published on 2015-12-03

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR Part 213 after this date.

  • 2016-07-01; vol. 81 # 127 - Friday, July 1, 2016
    1. 81 FR 43105 - Implementation of the Federal Civil Penalties Inflation Adjustment Act Improvements Act for a Violation of a Federal Railroad Safety Law or Federal Railroad Administration Safety Regulation or Order
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Railroad Administration
      Interim final rule.
      This interim final rule is effective August 1, 2016.
      49 CFR Parts 209, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, and 272

Title 49 published on 2015-12-03.

The following are only the Rules published in the Federal Register after the published date of Title 49.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2016-07-01; vol. 81 # 127 - Friday, July 1, 2016
    1. 81 FR 43105 - Implementation of the Federal Civil Penalties Inflation Adjustment Act Improvements Act for a Violation of a Federal Railroad Safety Law or Federal Railroad Administration Safety Regulation or Order
      GPO FDSys: XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Railroad Administration
      Interim final rule.
      This interim final rule is effective August 1, 2016.
      49 CFR Parts 209, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, and 272