The choice between plane surveying and geodetic surveying depends on factors like the purpose, scope, budget, and accuracy requirements of the survey. Geodetic surveying is preferred for large areas exceeding 250 km2 due to its higher accuracy and consideration of the earth’s curvature. Plane surveying is more suitable for smaller areas and is more cost-effective and practical for specific purposes. It is important to consult with a professional land surveyor to determine the best method and instrument for your specific project.