Survey Stations . Stations are just the physical points you mark on the ground. Main Station: The big, main corners of the area (like the main outer corners of a house outline). Sub Station: Extra dots placed along the lines to help capture small details inside. 2. Survey Lines (The "Lines Connecting the Dots") Lines are the paths you measure with your chain or tape. Base Line: The longest, most important backbone line running right through the middle. Everything else is built on top of this line. Main Lines: The lines connecting the Main Stations to form the outer boundary or main frame. Tie Lines: Shortcuts run between two lines to "tie down" interior details (like mapping a tree or a pond inside the property). Check Lines: Extra lines drawn only to double-check the accuracy of your measurements. If this line doesn't match your map, you made a mistake! Quick Memory Trick Base Line = The Backbone Main Line = The Boundary Tie Line = The Detail ...
Ranging Rod — Ranging rod is a surveying instrument used for ranging (locating) points on a straight line . It is generally made of wood, steel, or fibre . Standard length is usually 2 m or 3 m . It is generally 25–30 mm in diameter and has a pointed metal shoe at the bottom. It is painted in alternate red and white or black and white bands , usually about 20 cm long. The coloured bands make the rod clearly visible from a distance . It is used in chain surveying to mark survey stations and intermediate points. For long distances , ranging rods may be used with ranging poles or flags for better visibility. Arrows (Chain Surveying) Arrows ko chain surveying mein distance ki measurement ke दौरान chain lengths count karne ke liye use kiya jata hai. Ye generally steel wire ke bane hote hain. Ek arrow ki length lagbhag 40 cm hoti hai. Ek set mein aam taur par 10 arrows hote hain. Measurement complete hone par arrows ko collect karke chain lengths count ki jaat...