In today's time, there will be more "office" time involved than field work. There isn't a so-called survey crew anymore, cause GPS has made that obsolete. One person can do it all.
When I started in commercial construction, I was on a "layout" crew for the work. It was basically a survey crew, somebody has to paint a line on the ground, or shoot an elevation, etc. We worked in 3 man crews. If you were laying out for curb and gutter for a road as an example, you would locate and drive hubs with a stake every 50 feet and also at every change of direction. Then come back and shoot an elevation of each if those hubs. A "cut sheet" was made to give the workers. Using the hub locations and the elevation of the hubs with the plan elevation, they went to work.
With GPS and CAD software, it is all computed for you, one man can do it all.