In highway route survey, reconnaissance survey is done to:
Choose the correct answer
Fix the final alignment on the ground
Select one or more feasible routes from topographic maps/aerial photos without detailed ground survey
Prepare detailed drawings
Measure cross-sections
Correct Answer
B. Select one or more feasible routes from topographic maps/aerial photos without detailed ground survey
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Reconnaissance survey (preliminary): identification of feasible routes from topographic maps, aerial photographs, and limited field inspection. Identifies major obstacles, gradients, and approximate cost. Followed by preliminary survey (more detailed) and then final location survey.
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