In development
Product and market exploration
PorsTech Atlas — Dubai
A digital QA foundation for survey data in construction, now being prepared for Dubai project contexts.
This website explains the concept. It does not receive, check or store files, and it is not an operational survey service.
Proposed approach
Four separate steps, each recorded
A project in Dubai passes through many hands: surveyor, planning engineer, site team, consultant and later the asset owner. The idea is that everyone can see which exact file was reviewed and released, and by whom.
Keep the raw source file
The original survey output (DXF drawings, CSV or TXT point files, including Z values) is kept as delivered, without silent rewriting.
SHA-256 fingerprint
A SHA-256 hash identifies the exact bytes of the file. If anything changes, the hash changes. It does not check measurement accuracy, coordinate system or heights, and on its own it does not make storage tamper-proof.
Human review
A responsible person checks the content against the project's own requirements. That judgement stays with people; the concept only records that a review took place and on which file.
Release and record
After review, the release is recorded together with the fingerprint, so others in the chain can confirm they hold the same file that was released.
Dubai · verify per project
Grids and heights are project context, not assumptions
Survey data in Dubai projects can arrive in different coordinate reference systems. Two that are often mentioned are listed below. Which system and which vertical reference apply must be confirmed for each project with the responsible party.
| Often referenced | EPSG code | Status on this site |
|---|---|---|
| WGS 84 / UTM Zone 40N | EPSG:32640 | Context only; verify per project |
| Dubai Local Transverse Mercator (DLTM) | EPSG:3997 | Context only; verify per project |
Heights are often referred to the Dubai Municipality Datum (DMD). Levels submitted for approvals, such as a gate level, follow the requirements of the project and the authority involved; this site does not state any fixed value.
The concept keeps the declared grid and height reference next to the source file. If a reference is not declared, it stays visibly unknown. Unknown is not the same as zero.
Intended for the whole chain
Survey data is the starting point for many later decisions. The concept is meant for everyone who depends on it:
Possible uses include as-built checks and street inspections.
Roadmap · intended, not available
Where this could grow
If the foundation proves itself, later data streams could follow the same principle of a verifiable, released starting point. These are intentions, not features:
In preparation
Usage concept: monthly MB bundles
We are preparing a usage concept of monthly MB bundles, based on the file size of projects. There are no prices or plans yet.