Support Road Survey

Road Geometry

Extremely cost-effective option for collecting geometry data

ROMDAS Road Geometry module is an extremely cost-effective unit, used to calculate and record pavement gradient, radius of curvature, cross-fall and other road geometry characteristics.

The unit uses an integrated GPS and MEMS Internal Measurement Unit (IMU) with a navigation, attitude and heading reference system processor. This combination provides accurate and reliable highway geometry data. The internal low-power signal processor runs a real-time Kalman filter providing inertial enhanced 3D position and velocity estimates.

Easy to install and setup, this Geometry module can be integrated into a ROMDAS System within an hour. A real-time output of vehicle Pitch, Roll and Yaw is displayed in the ROMDAS Data Acquisition Software during the survey. The software does not require any operator interaction during data collection.

All data is referenced with GPS coordinates for easy integration with most commonly used GIS mapping software or Pavement Management Systems (PMS).

Key Benefits & Features

  • Light weight and easy to install
  • No operator input required during surveys
  • High update rate of 100Hz
  • Built-in test (BIT) feature
  • GPS antenna fault detection
  • Efficient and economical option for collecting network level geometry data
  • Individually calibrated for temperature, 3D misalignment and sensor cross-sensitivity
  • External active antenna status detection circuit

Data outputs

  • Gradient
  • Radius of Curvature
  • Cross-fall

Learn More About Our Products

We provide customers with innovative and cost effective data collection equipment

Road Roughness Measuring Instrument


This central system is the heart of all ROMDAS survey vehicles. It consists of the core hardware interfaces, acquisition software and power supplies needed for the addition of ROMDAS’ various add-on modules.

Road Roughness Measurement

Add-On Modules

Customise a ROMDAS system by selecting from a range of add-on modules, including modules for Video Logging, Roughness, GPS, 3D Pavement Profiling, Mobile Mapping and more. Find the right configuration for your project.

Road Roughness Measuring Instrument

ROMDAS Dataview

ROMDAS’ premium post-processing software includes features such as data integration, video & event rating, GIS mapping and synchronised data play. A useful tool for extracting the most out of your ROMDAS data.