What is advantages from temporary benchmark?

Answer 1

Bench Marks are property of survey department and authority of establishing a bench mark exists on survey department. So sometimes there would be none BMs cover the site areas. So the necessity of TBMs arises, because it minimizes the cost, time and accuracy of the site survey procedure. If there is no TBM established, it needs more measures to determine the heights from established MBs. So the labour cost will increase and the duration will also increase. Human errors are one of an incident which is a tall order to reduce. So the lengthen measurement process will cause of having unnecessary errors.