Find the hazards before the crash, not after

A systemic audit of the whole 3D road environment that does not wait for crash history. Faster than a traditional audit, and it looks everywhere.

From RDV Systems, trusted by 24 state DOTs since 2005.

Sight distance checked on a LiDAR scan of an existing road

Ten analyses, one 3D road

Every lane, every direction and every intersection, checked the same way. Not a sample of stations a reviewer chose.

SSD
Stopping sight distance
Tests at every station whether a driver can see an object in the lane in time to stop, stepping through the AASHTO speed table to the highest speed the view supports.
PSD
Passing sight distance
Compares the passing zones marked on the road with the sight distance a pass needs under AASHTO and MUTCD criteria.
ISD
Intersection sight distance
Checks each maneuver at each intersection against the AASHTO sight triangles for a vehicle waiting to turn or cross.
HCA
Horizontal curves
Measures each curve's radius and superelevation from the scan and checks them against the AASHTO Green Book, with maximum superelevation set per route.
FSA
Flat spots
Measures the longitudinal grade and cross slope of the pavement at every station.
GLR
Sun glare
Builds a year-long calendar for every station of the times the sun sits near the driver's line of sight.
GRW
Guardrail warrant
Evaluates embankment height and fill slope against the barrier warrant in the AASHTO Roadside Design Guide.
CS3D
Cross-Section 3D
Cuts 3D cross-sections through the embankments along the corridor.
CZ
Clear zone
Measures the clear zone width and side slopes, and finds the fixed objects and guardrails inside it.
TSA
Traffic signs
Detects signs in vehicle camera imagery, reads each one's MUTCD code and size, and places it with the LiDAR.

The same 3D road also answers pedestrian and cyclist sight lines and bridge vertical clearances.

No conversion project on your side. Send the files, and we prepare the 3D road data.

A scan of the road as it is today.

The design files your team already works in.

Your standards
AASHTO and state DOT standards out of the box, and every parameter adjustable.
Every finding explained
Each deficiency comes with the 3D view that shows why it fails.
Reports people can use
Downloadable CSV, online HTML reports and Google Maps integration.
Your systems
Results integrate with your own data systems.