this short tutorials provides education about the rise and fall table in land surveying . here we will learn how do we solve the rise and fall table.
the purpose of solving this table is to calculate the reduced level of each point taken at staff rod using leveling machine . to calculate the reduced level of each point we calculate the rise and fall of points . then for reduced level we use the given below formulas.
new R.L = old R.L - Fall
new R.L = old R.L + Rise
The last calculation: I.S-F.S is not -0.110. The correct value is: 1.881-1.911=-0.030
Check video time: 3:28
no problem thats typing mistake, the calculation process is ok.
lets check the solution process from SL khan 's lecture.
thank you for watching...
This Content Originally Published by a land surveyor to Land Surveyors United Network