Highway Engineering
The fundamental factor in the selection of pavement type is

climatic condition
availability of funds for the construction project
subgrade soil and drainage conditions
type and intensity of traffic

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Highway Engineering
The sequence of four stages of survey in a highway alignment is

map study, preliminary survey, reconnaissance and detailed survey
preliminary survey, map study, reconnaissance and detailed survey
reconnaissance, map study, preliminary survey and detailed survey
map study, reconnaissance, preliminary survey and detailed survey

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