Mobile laser scanning

A mobile laser scanning system consists of one or more laser scanners, panoramic cameras, a GNSS receiver and an inertial unit mounted on a car, a rail trolley or a boat. Travelling at normal traffic speed, it captures a 3D point cloud of the road, pavements, facades, poles and the entire surroundings.

The method allows hundreds of kilometres of road network to be surveyed in a short time, without closing traffic or sending staff onto the carriageway. The trajectory is refined with GNSS base stations and ground control points, giving an absolute accuracy of typically ±2–5 cm. In urban canyons, tunnels and between tall buildings where GNSS is weak, additional control points are used.

The point cloud is used to produce road topographic plans, cross-sections, pavement defect maps and an inventory of signs, lighting poles, manholes and other assets. Together with panoramic imagery, the data can be loaded into a GIS or a web viewer. For road, rail and utility projects in Baku and across Azerbaijan, this service saves time and improves safety.

When you need it

• Topographic base for road reconstruction
• Inventory of city streets and infrastructure
• Railway line and clearance surveys
• Pavement condition assessment
• GIS database of utilities and street furniture
• Boat-based scanning of shorelines and canals

What's included

• Route and driving plan
• GNSS base station and control points set-up
• Mobile scanning and panoramic imaging
• Trajectory processing and point cloud adjustment
• Feature extraction and vectorisation
• Plans, cross-sections and inventory tables

How we work

1. Defining the object and deliverable requirements
2. Establishing the control network
3. Mobile scanning
4. Processing, accuracy check and feature extraction
5. Delivery of results

Deliverables

• Georeferenced point cloud (LAS, E57)
• Panoramic images
• Road topographic plan and cross-sections (DWG)
• Asset inventory table and GIS layers