Local Civil Engineer

10 Surveying Instruments & Their Uses

1. Chain/Tape – Measures short ground distances.

2. Compass – Determines direction and bearings.

3. Plane Table – Used for field mapping and plotting.

4. Theodolite – Measures horizontal and vertical angles.

5. Auto Level – Determines elevations and Reduced Levels (RL).

6. Total Station – Measures angles, distances, and coordinates digitally.

7. GPS Receiver – Provides accurate location and positioning data.

8. EDM (Electronic Distance Meter) – Measures long distances electronically.

9. Prism – Reflects the Total Station signal for precise measurements.

10. Ranging Rod – Marks survey points and helps align straight survey lines.

Road Defects Explained | Common Road Failures & Their Causes 🛣️

Description:
Road defects reduce safety, increase maintenance costs, and shorten pavement life. In this note, you'll learn the most common road defects such as cracks, potholes, rutting, raveling, bleeding, edge failure, and settlement, along with their causes and basic prevention methods. This guide is useful for civil engineers, site engineers, students, and highway professionals.