Service Area

Infrastructure, GIS, Deformation & Project Monitoring

Digital documentation of infrastructure assets, precise movement monitoring of structures and facilities, and visual and technical tracking of construction sites.

Buried utilities are the easiest assets to forget, precisely because they are invisible. Not knowing what lies where before excavation leads both to damaged lines and to stopped work. The purpose of utility surveying is to record the position of a line before it is buried and to turn that record into a database that can be queried.

A geographic information system (GIS) takes that record beyond a map. Each segment is stored together with its diameter, material, depth and installation date, so questions like "which lines on this street are made of what" can be answered on the map itself.

Deformation surveying answers a different question: is the structure moving? A single measurement cannot say. The answer only emerges when the same points are measured again and again over time, which makes deformation work a monitoring programme rather than a survey.

  • Infrastructure Surveys & GIS

    Precise measurement and positioning of infrastructure facilities and their transfer into geographic information systems to build a current, usable digital infrastructure inventory.

    Scope

    • Sewerage
    • Infrastructure line surveys
    • Stormwater
    • Potable water
    • Natural gas
    • Electricity
    • Telecommunications
    • GIS data production
    • Digital infrastructure inventory

  • Deformation & Precision Monitoring

    Determining positional changes in structures, facilities and engineering works through high-precision survey methods, and periodically monitoring time-dependent movement.

    Scope

    • Structural deformation
    • Vertical and horizontal movement
    • Settlement measurement
    • Periodic deformation monitoring
    • Precise levelling
    • Geodetic monitoring
    • Reference point checks

  • 360° Project Monitoring

    Recording construction sites at regular intervals with 360° imagery, drone photos and video, and field data; tracking project progress through visual and technical reports.

    Scope

    • 360° photography
    • Drone photo and video
    • Periodic site imaging
    • Progress reports
    • Before/after comparisons
    • Digital site archive
    • Project progress tracking

How We Work

Process

  1. Scope and data model

    Which lines will be recorded, and with which attributes, is decided at the outset; the data model is defined before fieldwork begins.

  2. Field survey

    In open trench the line is measured directly; on closed lines position and level are taken from reference points and manholes.

  3. Attribute capture

    Diameter, material, depth, flow direction and connection details are recorded on site.

  4. GIS transfer

    Geometry and attributes are loaded into a geodatabase; topology checks remove disconnected and overlapping segments.

  5. Delivery and updating

    The dataset is delivered and can be updated periodically as new work is completed.

Deliverables

What you receive

  • Digital utility map (DWG / DXF)
  • GIS dataset (SHP / GeoPackage)
  • Attribute table (diameter, material, depth, date)
  • Route plans and profiles
  • Deformation report with movement graphs
  • Periodic comparison tables
  • 360° site image archive
  • Periodic progress report

FAQ

Common questions

How many measurements make deformation monitoring meaningful?
Two are the minimum, but a single difference does not prove movement. Meaningful interpretation needs a zero measurement followed by at least three or four regular epochs; what is sought is a consistent trend that rises above measurement uncertainty.
What level of movement can be detected?
Precise levelling and geodetic methods can track vertical movement at millimetre level. Achievable precision depends on the method, the stability of the reference points and measurement conditions.
Can we use the GIS data in our own system?
Yes. Data is delivered in open formats (SHP, GeoPackage, GeoJSON) compatible with common GIS software. Where it has to feed an in-house system, the data model is shaped accordingly.
What is 360° project monitoring for?
Photographing the site in 360° from fixed positions at regular intervals keeps a record of work that later gets covered up. When what sits behind a wall becomes a question, the image from that date answers it.

Service Areas

Districts we serve in Istanbul

We carry out infrastructure surveys, GIS mapping, deformation monitoring, geodetic and precision surveys in every district of Istanbul. Deformation monitoring is critical around deep excavations in Kadıköy, Üsküdar, Beşiktaş, Bakırköy and Ataşehir; utility line and control point surveys run in Maltepe, Kartal, Pendik, Ümraniye, Beykoz, Sarıyer, Başakşehir, Beylikdüzü and Silivri.

  • Istanbul
  • Kadıköy
  • Üsküdar
  • Ataşehir
  • Maltepe
  • Kartal
  • Pendik
  • Ümraniye
  • Beykoz
  • Bakırköy
  • Beşiktaş
  • Sarıyer
  • Başakşehir
  • Beylikdüzü
  • Silivri

Other Areas

Related service areas

Let's determine the right survey approach for your project together.

We listen to the field conditions and what the project needs, then recommend the appropriate method.

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