34,000 km
Road Network Surveyed
177K km²
Basin Area Mapped
±5 cm
GNSS Accuracy
12+
Years Field Experience
Overview
What We Deliver in Survey & Data Collection
TANGIS's survey division combines traditional geodetic survey expertise with modern GNSS RTK and drone-based photogrammetry workflows. Our licensed surveyors operate across Tanzania and East Africa, delivering precision topographic surveys, cadastral boundary delineation, hydrographic surveys, and utility network mapping for government ministries, infrastructure developers, and mining operators.
Industries Served
Challenges We Solve
Large Area Coverage
Traditional survey methods cannot efficiently cover the large areas required for national infrastructure or land programs within project timelines.
Remote & Difficult Terrain
Many project areas in Tanzania are geographically isolated with no existing geodetic control network.
Data Quality & Accuracy
Client organisations need survey data that meets international accuracy standards for engineering, legal, and GIS applications.
Data Integration
Survey deliverables need to integrate with existing GIS platforms, engineering software, and cadastral databases.
Our Approach
How We Deliver Field Survey
Survey Design & Control Network
We establish or connect to a geodetic control network and design the survey methodology (GNSS RTK, total station, UAV) for your site conditions and accuracy requirements.
Field Data Collection
Our licensed survey teams execute field campaigns using calibrated GNSS receivers, total stations, and drone platforms — with daily quality checks on all collected data.
Data Processing & QC
All collected data undergoes rigorous processing — GNSS post-processing, point cloud generation, DTM extraction — with independent quality control checkpoints.
Product Generation
We generate the full suite of survey deliverables including CAD drawings, topographic maps, digital elevation models, and GIS-ready datasets.
Accuracy Certification
We provide survey accuracy reports and residuals documentation meeting Tanzanian survey regulations and international standards (ISO 19157, ASPRS).
What You Receive
Technologies & Platforms
FAQ
Common Questions About Field Survey
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