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 1/21 1 1/22 2 1/23 3 1/24 4 1/25 5 1/26 Degree of curvatureMaximum allowable operating speed (m.p.h.) 0°30′93100107113120125131136141146151156160 0°40′80879398104109113118122127131135139 0°50′727783889397101106110113117121124 1°00′6571768085899396100104107110113 1°15′596368727679838689939699101 1°30′53586265697276798285879093 1°45′49535761646770737678818386 2°00′46505357606365687173767880 2°15′44475053565962646769717376 2°30′41454851535659616365687072 2°45′39434648515356586062646668 3°00′38414446495153565860626465 3°15′36394244474951535557596163 3°30′35384043454749525355575961 3°45′34373941444648505253555759 4°00′33353840424446485052535557 4°30′31333638404244454749505253 5°00′29323436384041434546484951 5°30′28303234363839414344464748 6°00′27293133353638394142444546 6°30′26283031333536383941424344 7°00′25272930323435363839404243 8°00′23252728303133343537383940 9°00′22242527283031323335363738 10°00′21222425272829303233343536 11°00′20212324252728293031323334 12°00′19202223242627282930313233

Table 2—Four Inches Unbalance

Elevation of outer rail (inches) 0 1/21 1 1/22 2 1/23 3 1/24 4 1/25 5 1/26 Degree of curvatureMaximum allowable operating speed (m.p.h.) 0°30′107113120125131136141146151156160165169 0°40′9398104109113118122127131135139143146 0°50′83889397101106110113117121124128131 1°00′768085899396100104107110113116120 1°15′68727679838689939699101104107 1°30′62656972767982858790939598 1°45′57616467707376788183868890 2°00′53576063656871737678808285 2°15′50535659626467697173767880 2°30′48515356596163656870727476 2°45′46485153565860626466687072 3°00′44464951535658606264656769 3°15′42444749515355575961636566 3°30′40434547495253555759616264 3°45′39414446485052535557596062 4°00′38404244464850525355575860 4°30′36384042444547495052535556 5°00′34363840414345464849515253 5°30′32343638394143444647485051 6°00′31333536383941424445464849 6°30′30313335363839414243444647 7°00′29303234353638394042434445 8°00′27283031333435373839404142 9°00′25272830313233353637383940 10°00′24252728293032333435363738 11°00′23242527282930313233343536 12°00′22232426272829303132333435

Table 3—Five Inches Unbalance

Elevation of outer rail (inches) 0 1/21 1 1/22 2 1/23 3 1/24 4 1/25 5 1/26 Degree of curvatureMaximum allowable operating speed (m.p.h.) 0°30′120125131136141146151156160165169173177 0°40′104109113118122127131135139143146150150 0°50′9397101106110113117121124128131134137 1°00′85899396100104107110113116120122125 1°15′7679838689939699101104107110112 1°30′6972767982858790939598100102 1°45′64677073767881838688909395 2°00′60636568717376788082858789 2°15′56596264676971737678808284 2°30′53565961636568707274767779 2°45′51535658606264666870727476 3°00′49515356586062646567697172 3°15′47495153555759616365666870 3°30′45474952535557596162646567 3°45′44464850525355575960626365 4°00′42444648505253555758606163 4°30′40424445474950525355565859 5°00′38404143454648495152535556 5°30′36383941434446474850515253 6°00′35363839414244454648495051 6°30′33353638394142434446474849 7°00′32343536383940424344454647 8°00′30313334353738394041424344 9°00′28303132333536373839404142 10°00′27282930323334353637383940 11°00′25272829303132333435363738 12°00′24262728293031323334353536

Table 4—Six Inches Unbalance

Elevation of outer rail (inches) 0 1/21 1 1/22 2 1/23 3 1/24 4 1/25 5 1/26 Degree of curvatureMaximum allowable operating speed (m.p.h.) 0°30′131136141146151156160165169173177181185 0°40′113118122127131135139143146150154157160 0°50′101106110113117121124128131134137140143 1°00′9396100104107110113116120122125128131 1°15′838689939699101104107110112115117 1°30′767982858790939598100102105107 1°45′70737678818386889093959799 2°00′65687173767880828587899193 2°15′62646769717376788082848587 2°30′59616365687072747677798183 2°45′56586062646668707274767779 3°00′53565860626465676971727476 3°15′51535557596163656668707173 3°30′49525355575961626465676970 3°45′48505253555759606263656668 4°00′46485052535557586061636465 4°30′44454749505253555658596062 5°00′41434546484951525355565759 5°30′39414344464748505152535556 6°00′38394142444546484950515253 6°30′36383941424344464748495051 7°00′35363839404243444546474849 8°00′33343537383940414243444546 9°00′31323335363738394041424344 10°00′29303233343536373839404141 11°00′28293031323334353637383939 12°00′27282930313233343535363738
[78 FR 16113, Mar. 13, 2013]