Surface condition and friction measurements

The measurement systems help you and your customers in the planning and quality control of winter maintenance activities on the roads and at the airports.

Road Weather Station RWS10 has been developed for fixed installations along the roadside. It features all the essential road weather measurements, including surface condition, friction, water/ice layer thickness, air pressure, surface temperature and dew point temperature. Existing roadside infrastructure may be used for easy commissioning.

Road Condition Monitor RCM511 and the associated data acquisition and displaying system are designed for mobile road weather measurements in winter maintenance. The performance of RCM411 (previous model) has been verified in several published third party tests and comparisons. Data acquisition is integrated in a single application, which records GPS information and communicates all the collected data to a server for displaying it in Mobile Road Condition Map™.

Customer benefits

  • Optimized timing of maintenance operations
  • Savings in salting operations through optimization
  • Increased road safety and improved driving conditions
  • Decreased environmental impact
  • Enhanced road weather forecasts

Ask for more information about surface condition and friction measurement systems

Road weather monitoring with Road Weather Station RWS10

RWS10  is a compact road weather station using optical technology. The station consists of two non-invasive sensors and a control cabinet. The firmware of the sensor measures the optical reflection signals and analyses the data to produce a road surface condition and friction report.

RWS10 reports the following road surface and road weather information

  • surface condition
  • coefficient of friction
  • water/ice layer thickness
  • air pressure
  • surface temperature
  • dew point temperature

RWS10 station highlights

  • easy installation: when a power line is available, the installation to an existing mast can be carried out within an hour
  • cost-efficient solution for all basic road weather measurements
  • minor maintenance needs
  • automatic software updates and remote control of parameters

Mobile road weather monitoring with Road Condition Monitor RCM511™

RCM511 is an optical sensor based on spectral analysis. The firmware of the sensor measures the optical reflection signals and analyses the data to produce a road surface condition and friction report.

RCM511 reports the following road surface information

  • Surface condition
  • Coefficient of friction
  • Water layer thickness
  • Ice layer thickness

RCM511 sensor highlights

  • Small physical size makes installation easy and fast in any vehicle, from passenger vehicles to plough trucks. The sensor is easily transferable to another vehicle
  • Low purchasing cost and economic life cycle costs of the total measurement system
  • The system is almost maintenance free: only cleaning of lenses may occasionally be needed
  • Automatic software updates and remote control of parameters

RCM411 demo drive

Latest RCM411™ data on map.

Browse new data measured by RCM511 and RCM411 sensors on Mobile Road Condition Map™. The map also shows fresh data of some road weather stations.

Temperature Sensors

Surface temperature sensor RTS411/RTS411SA and Surface temperature and dew point sensor RTD411SA can be used as stand-alone units or as an integrated part of the Road condition monitoring system. The standalone versions include sensor heads and an enclosure with Bluetooth unit. A mobile device is used for user interface in the vehicle and for data transmission to selected servers. Mounting is easy on the metallic parts of the vehicle by using a magnetic fixture.

Friction Meter µTEC™

µTEC is an Android smartphone application, which is based on measurement of acceleration while braking a car so that the tires start to slip. µTEC has been certified for Quality Control measurements by the Finnish Transport Infrastructure Agency.

µTEC™ features

  • Coefficient of friction
  • Vehicle speed and direction (phone GPS)
  • Vehicle location (phone GPS)