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Administrative History
In Field Book for Railroad Surveying, (New York: John Wiley and Sons, 1910), Cornell University railroad engineering professors Charles Lee Crandall and Fred Asa Barnes state that in planning the construction or extension of a railroad line, a survey for location of the new line generally consists of three more or less complete surveys:
a. The Reconnaissance Survey - A rough, rapid survey, or examination, of the entire belt of country within which there is any probability of finding a practicable route.
b. The Preliminary Survey - An instrumental survey or traverse of the line, following closely the route picked out in the
reconnaissance survey and serving, with its topography, as a basis for the location survey.
c. The Location Survey - A transit and tape survey, in which the curves are run in and the center line is staked on the ground.
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