Compare Rise & Fall method and H.I. method.
Sr.No.
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Rise and Fall Method
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H.I. Method
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1 |
It is slow and more tedious.
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It is more rapid and less tedious
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2 |
It is laborious as it involves more calculations.
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It is simple as it involves less calculation.
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3 |
In this method there is complete check on all calculation work.
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In this method there is no check on calculations of R.L. of intermediate sight and mistakes made remain unchecked
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4 |
In this method the mistake made in calculating the R.L. of any point will be carried forward.
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In this method the error in calculating the R,L, of I.S. is not carried forward as the R,L, are calculated from the respective plane of collimation
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5 |
It is used in precise leveling work, check leveling calculations.
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It is usually used in profile leveling calculation.
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6 |
Arithmetical check ΣB.S.- ΣF.S=ΣRise–Σfall =Last RL-First RL
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Arithmetical check ΣB.S.- ΣF.S=Last RL-First RL
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