Aplitop: 3d-road-mapping-dominican-republic

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3D Road Mapping: LiDAR RTK-SLAM with Kolida ME Plus and TCP PointCloud Editor

La Vega-Bonao, Dominican Republic

3D Point Cloud - TCP PointCloud Editor
Company: Inmofull SRL
Web: www.inmofull.com
Location: La Vega-Bonao (Dominican Republic)
Name: Jesús Enmanuel Muñoz Duarte
Role: Kolida and Aplitop Representative / Surveyor
Main activity: Surveying, Geodesy, Sale of Surveying Equipment and Software
Distributor: Inmofull SRL

Use Case

The main goal was to determine the geometric road condition of the on-ramp from Av. Presidente Antonio Guzmán Fernández to the Juan Pablo Duarte Highway, a primary high-speed road with constant traffic.

The challenge was to carry out a high-density topographic survey while guaranteeing the safety of the field crew, and then to thoroughly evaluate parameters such as longitudinal slopes, transverse crown and curvature radii.

This data had to be compared against strict regulatory criteria (MOPC Regulation R-012M) in order to identify critical stormwater drainage deficiencies.

To solve this challenge safely and efficiently, we combined cutting-edge hardware with highly specialised software. In the field, we performed the survey using a Kolida ME Plus scanner (LiDAR RTK-SLAM) supported by a Kolida K7 GNSS base, obtaining a point cloud with more than 200 million points.

The georeferenced data was then imported into TCP PointCloud Editor. Using Aplitop's powerful tools, we cleaned spurious points and automatically classified the terrain. This allowed us to define the analysis axes with full precision and automatically extract longitudinal profiles (with a ±3.50 m band) and cross-sections every 10 metres.

Thanks to the software environment, we could read elevations, roadway widths and transverse slopes directly.

Selection by Estimated Plane in TCP PointCloud Editor

View of the TCP PointCloud Editor interface showing the use of the "Selection by Estimated Plane" tool over the 3D point cloud. The applied parameters (Selection Radius 5.000, Neighbourhood Distance 0.050, Bandwidth 0.100) allow filtering and extracting with high precision the points corresponding to the pavement surface.

Axis Editor - Eje_1

"Axis Editor" module in TCP PointCloud Editor working on the Eje_1 alignment. The vertices and segments of the trajectory are shown with parameters such as alignment type, station (PK), planimetric coordinates (X, Y), azimuth and length of each section.

Tcp PointCloud Editor
Tcp PointCloud Editor

Point cloud management software for surveying and civil engineering projects.

+ INFO
  • Drastic time savings: the integration of the LiDAR scanner with TCP PointCloud Editor made it possible to process the full geometry of two road segments (Eje 1 and Eje 2) in a fraction of the time required by traditional methods.
  • Quick identification of anomalies: the smooth generation of cross-sections in Aplitop's software made slope reading visually obvious. Two critical stormwater drainage areas (crowns of +1.06% and +1.45%) were quickly identified, allowing immediate milling and resurfacing solutions to be proposed.
  • Safety: by extracting profiles and sections digitally on the point cloud, the risk of having personnel taking physical measurements on a trunk highway was avoided.
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