Marching camp construction

[agrimensor]

I am currently thinking on how its done.
as Roman agrimensor and Proffesional surveyor it has my interest.
As fas as I know the surveyor had 1/10 of the troops at his disposal and went in front of the main body of the legion.
He would get his info from scouts and the auxilary which would go even before him.
he had to make the decision where to camp by that info.