GNSS Control Networks, Triangulation and Levelling

The accuracy of large engineering projects, existing-condition mapping and deformation monitoring depends on a robust geodetic control network. We establish site-specific points, produce coordinates from long static GNSS sessions tied to TUSAGA-Aktif (CORS-TR) stations and report the accuracy through network adjustment. We densify horizontal and vertical control with traverse and geometric levelling networks and compute transformation parameters between ITRF/TUREF datums and local systems. For deformation monitoring projects we establish stable reference points outside the zone of movement that can be preserved over the long term.

• Site-Specific Geodetic Control Network Establishment
• Static GNSS Observations Linked to TUSAGA-Aktif (CORS-TR) and Network Adjustment
• Traverse and Geometric Levelling (Height) Networks
• Stable Reference Points for Deformation Monitoring Networks
• Coordinate Transformations Between ITRF/TUREF and Local Systems

Process steps

• Network Design — Point locations, intervisibility, observation plan and accuracy target. (1–3 days)
• Monumentation — Permanent installation of concrete pillars, steel bolts or survey pillars; point description sketches. (1–5 days)
• GNSS / Levelling Observations — Static GNSS sessions, traverse and double-run levelling. (2–10 days)
• Adjustment — Network adjustment, outlier testing, datum transformations. (2–5 days)
• Report & Delivery — Coordinate list, accuracy report, point description sketches. (1–3 days)

Required documents

• Project area boundary and project coordinate system
• Employer specification / accuracy requirements
• Owner or authority permission for the areas where points will be established
• Existing triangulation, traverse and levelling point records, if any

AKL Mühendislik & Danışmanlık — Phone: 0542 822 04 59 · Email: [email protected] · Kızılarık Mahallesi, 2754. Sk No: 1/214 (Oficity İş Merkezi), 07310 Muratpaşa / Antalya, Türkiye