measuring angle and distance from one transit station

measuring angles to the point from at least two stations

measuring angle at one station and distance from other

measuring distance from two points on traverse line

levelling

measurement of horizontal distances in plane areas

measurement of horizontal distances in undulated areas

measurement of angles

require slope correction

require tension correction

require slope and tension corrections

do not require slope and tension corrections

one

two

three

four

7.5 m

25 m

50 m

75 m