Expertise

GIS, Lidar and geospatial data

An environmental model is only as good as the spatial data beneath it. TT prepares that data: we survey it, clean it, structure it and make it fast to query. The technical director holds a PhD in Geodetics and Geomatics from the Polytechnic University of Milan, with a focus on advanced GIS, remote sensing, management of large geographic datasets and automated classification of satellite imagery.

Problems we solve

A national noise model has to process the ground cover of a whole country in a reasonable time. An international organisation has to publish large geographic datasets through web services that can take the load. A motorway operator needs a three-dimensional model of its network for design and assessment. A city wants to know which roofs are suitable for solar panels. These are different problems with the same root: large volumes of spatial data that have to become reliable information.

Services

We process Lidar and photogrammetric surveys, extract roads, buildings and other features from point clouds as vector data, design geospatial databases and their management policies, build automated processing pipelines and vector tile services, develop custom QGIS plugins, and produce solar potential maps and population exposure analyses.

Methods and tools

We work with open software: QGIS, GRASS, PostgreSQL with PostGIS and R, plus ArcView where the client requires it. We write code in Python, JavaScript, Perl and bash, and deploy services in Docker containers. We have also worked with Azure Blob Storage and with hyperspectral imagery from satellites and drones.

Reference projects

Parked-train noise across Europe (International Union of Railways). AI-assisted satellite validation of train parking locations, combined with population grids. Case study.

DEFRA, United Kingdom. Best practice for processing ground cover over 90,000 km² for noise modelling: the proposed QGIS and PostGIS algorithm made processing about 1,000 times faster.

UNDP SDG GeoHub. PostGIS data architecture and cloud pipelines serving vector tiles on demand. Case study.

Motorway Lidar. Laser scanning and photogrammetric survey of 702 km and 1,377 km of the Autostrade per l'Italia network and processing of 200 km of the Autovie Venete network: 2,279 km in total, with project management, GIS development and data quality control.

Interreg CO ADRIA (Municipality of Udine). Solar potential mapping of Udine and Monfalcone in QGIS, with a plugin developed for the project.

Other work: the GIS system that extracts roads and buildings from Lidar point clouds for three-dimensional noise models, and the final checks and geodata migration for the fourth round of noise mapping of the Environmental Protection Agency of Ireland.

Projects in this area

See all 7 projects in this area
FR

Parked-train noise: estimating the exposed population across Europe for UIC

International Union of Railways (UIC)

A Europe-wide study for the International Union of Railways, with 12 countries analysed in full, estimating how many people live close enough to depots, stabling sidings and yards to be affected by noise from parked trains, such as HVAC and auxiliary equipment running overnight. It combines AI-assisted satellite validation of parking locations with population grids, to give UIC evidence on whether EU limit values for parked-train noise are needed.

Environmental noise and acousticsGIS, Lidar and geospatial data
GB

UK DEFRA: ground cover data optimisation for noise modelling

UK Department for Environment, Food and Rural Affairs (DEFRA)

GIS consultant on DEFRA's "Environmental Noise Modelling Design and Build" project: best practice for processing detailed ground cover data across 90,000 km² of the UK. The proposed QGIS/PostGIS optimisation algorithm sped up processing by a factor of about 1,000.

GIS, Lidar and geospatial dataEnvironmental noise and acoustics
US

UNDP SDG GeoHub: geospatial data architecture and cloud processing pipelines

UNDP (United Nations Development Programme)

For the UNDP SDG GeoHub, designed the structure and management policies for geospatial data hosted in PostGIS and Azure Blob Storage, to support dissemination through scalable web services. Built automated cloud pipelines to integrate new spatial data and PostGIS SQL functions that serve vector tiles on demand.

GIS, Lidar and geospatial dataTechnical assistance to institutions
ITOngoing

Interreg CO ADRIA: cross-border energy community and solar mapping of Udine and Monfalcone

Comune di Udine

Technical assistance to the Municipality of Udine on the Interreg Slovenia-Italy CO ADRIA project, designing the roadmap towards a cross-border energy community. The work included solar mapping of the municipalities of Udine and Monfalcone in QGIS, with a purpose-built plugin.

Energy transition and energy communitiesGIS, Lidar and geospatial data

GIS, Lidar and geospatial data