Appendix A to Part 213 - Maximum Allowable Curving Speeds
49:4.1.1.1.8.9.5.1.7 : Appendix A
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]