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From: A new, simple and accurate transition curve type, for use in road and railway alignment design
Projection | Approximation | Clothoid | Cubic Parab. | SPTC (10) | SPTC (3) | SPTC (2) |
---|---|---|---|---|---|---|
X(m) | ΔR(m) | ΔR(m) | ΔR(m) | ΔR(m) | ΔR(m) | ΔR(m) |
100 | 0.04167 | 0.04167 | 0.04167 | 0.04167 | 0.04167 | 0.04167 |
200 | 0.33333 | 0.33333 | 0.33363 | 0.33335 | 0.33335 | 0.33335 |
300 | 1.12500 | 1.12492 | 1.13012 | 1.12524 | 1.12524 | 1.12525 |
400 | 2.66667 | 2.66606 | 2.70486 | 2.66850 | 2.66850 | 2.66870 |
500 | 5.20833 | 5.20543 | 5.38909 | 5.21710 | 5.21712 | 5.21942 |
600 | 9.00000 | 8.98959 | 9.63887 | 9.03157 | 9.03205 | 9.04875 |
700 | 14.29167 | 14.26107 | 16.13011 | 14.38539 | 14.39032 | 14.47809 |
800 | 21.33333 | 21.25548 | 25.86352 | 21.57540 | 21.61157 | 21.97114 |
900 | 30.37500 | 30.19768 | 40.24449 | 30.93898 | 31.14653 | 32.34456 |
1000 | 41.66667 | 41.29661 | 61.09386 | 42.88336 | 43.85947 | 47.17075 |