What is a benchmark? Name the different types

[Sumit Civil]

What is a benchmark? Name the different types

 

[sameer_shaid]

Bench mark is the permanent point of reference whose elevation with respect to assumed datum

 

[vivekanandan]

Benchmark is the reference mark .....our indian reference benchmark was taken from Karachi, Pakistan now it is taken from Mumbai high...

Arbitrary benchmark
GTS benchmark
Permanent benchmark
Temporary benchmark