problem 1) prepare down the limitations in Airways. prepare down the advantages in modern systems of transportation. describe ‘Sight Distance’ in detail. Describe the term ‘Super-elevation’ in detail. What is the objective of providing fish-plates in rails? What is meant by sleeper density? prepare down sleeper densities on the Railways? describe the requirement for Docks. prepare down the various kinds of jetties. prepare down the kinds of categorization of Air ports. prepare a brief note on Airport Zoning.