Drive-by capture vs. mobile LiDAR: same survey grade, a fraction of the cost

Mobile LiDAR is excellent technology. A dedicated vehicle carrying a laser scanner and an inertial unit produces dense, accurate point clouds — and historically that has been the only way to get survey-grade 3D of a road corridor.

The catch is cost and access. A mobile-LiDAR rig runs into the hundreds of thousands of dollars, the vehicles are specialized and scarce, and processing is a manual, multi-day affair. The result: organizations capture once every few years, and the data is stale long before the next survey.

4D-360 takes a different route to the same destination. Mount a 360° camera and a multi-band GPS on any vehicle — a pickup, a service van, a pool car — drive the route once, and the footage is reconstructed photogrammetrically into a dense, metric point cloud at roadside point spacing comparable to mobile LiDAR. No laser scanner, no dedicated platform.

What changes when the hardware cost collapses:

• Capture often. A monthly or quarterly drive becomes affordable, so your data tracks reality instead of lagging it — the basis for automatic change detection.
• Use the fleet you have. Any driver, any vehicle. No scheduling a specialist rig.
• Get more than geometry. The same pass yields three deliverables — video, point cloud and a navigable scene — not just a cloud.

The point cloud is still metric and georeferenced, so it stands up to the same measurement and audit scrutiny — you can measure it directly in the browser, and it feeds the same GIS-ready asset inventory.

For utilities, cities and transport, the lever isn’t a better scanner — it’s being able to capture survey-grade data often enough to trust it.

Talk to us about replacing an annual survey with a monthly drive.