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Bump Integrator

Low-cost road roughness measuring device for rough, unpaved or wet conditions

The Bump Integrator (BI) is a Class 3 response-type road roughness measuring equipment used for roughness surveys on unpaved roads. In the last few decades, BI has been widely implemented in countries with varying climates and road conditions. It is an inexpensive option for measuring roughness and calculating IRI. The BI unit excels on rough, unpaved or in wet conditions where laser based profiling equipment cannot be used.

A ROMDAS System with a Bump Integrator requires little-to-no operator interaction and all readings are shown in real-time on the survey computer.

The raw roughness data from the BI is recorded directly to a laptop installed with the ROMDAS System. A well calibrated BI will easily rival or exceed the accuracy of other Class 3 roughness profilers, including some accelerometer based equipment.

Thanks to its low minimum speed (10km/h), the BI can also be operated in areas of high congestion unlike other accelerometer based equipment.

Key Benefits & Features

  • High resolution, high reliability optical encoder
  • Designed for use in some of the most extreme and rugged road conditions
  • Low minimum operating speed (10km/h)
  • Very low cost compared to vehicle mounted accelerometer-based equipment
  • Simple design allows for quick and easy installation and full serviceability in the field

Data outputs

  • Longitudinal Profiles
  • Roughness (IRI)

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

Post-Processing Software

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.