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Pavement Sensors

Agencies around the world use pavement sensors to monitor remote locations, bridges, known problem areas, airport parking facilities, even runways. Knowing the pavement temperature and condition results in more proactive and efficient maintenance operations.

Pavement information is essential for operations during critical winter periods and throughout the year. As weather conditions change, pavement conditions can deteriorate quickly. Pavement sensors provide the data you need to make informed and timely decisions. QTT offers a variety of pavement sensors to fit your needs and budget.

Benefits

  • Accurately measure pavement temperature and condition
  • Collect pavement data at specific locations
  • Provide essential data for proactive anti-icing operations
  • Reduce overall chemical usage and save money
  • Reduce harmful environmental effects
  • Year-round applications


FP 2000®

Scheduling winter storm crews, construction projects or pavement resurfacing is easier if you know the current conditions. The FP 2000 passive surface sensor monitors pavement conditions on roadways and runways and determines if water or a chemical solution is on the pavement.

The FP 2000 is durable, reliable and constructed to withstand heavy traffic, tire chains, snowplows and extreme weather conditions. The in-pavement sensor utilizes patented technology consisting of a combination of temperature, capacitance and two sets of four-point sensing nodes to measure pavement conditions. A well on top of the sensor collects moisture and chemical information.

 

 

 

 

 

 

Sensit®

The Sensit is an active and passive pavement sensor combined; it measures current road surface temperature, the freeze point of any liquid on the road surface and determines whether the road is wet or dry. The Sensit uses active sensor technology, which means it cools the liquid on the pavement to determine the freeze point. This method is carried out independent of chemical type or mixture on the pavement.

The Sensit's removable lid allows for easy access to all electronics and sensing components, making upgrading or replacing sensing components quick and easy. This approach allows for lower long-term maintenance costs.

The Sensit provides data for successful road weather management, and is even designed to integrate with RWIS or fixed anti-icing spray systems.

 

 

 

 

 

 

Wireless WxT

The Wireless WxT sensor is a permanent solution for collecting both traffic and weather data. It is a self-contained, in-pavement sensor that utilizes Vehicle Magnetic Imaging (VMI) technology to detect vehicle count, speed and classification. In addition, the Wireless WxT sensor measures pavement temperature and condition.

The Wireless WxT sensor reports wirelessly to a site controller alongside the roadway, or to a road weather station (RWIS). It provides accurate and essential data necessary for effective traffic analysis, control and management during adverse weather conditions such as fog, icy roads, high winds, or flooding. When used with QTT RWIS, the Wireless WxT sensor helps decision makers determine the effects of weather on traffic.

 

 

 

 

 

Thermo SCAN

The Thermo SCAN is a passive pavement sensor made of the same durable material as the FP 2000, but is designed to measure temperature only. The in-pavement sensor is easy to install and provides a low cost solution for gathering pavement data.

The Thermo SCAN sensor uses a thermo-linear network to measure pavement temperature; the resistance of the thermo-linear network increases with decreasing temperature. This method of pavement temperature measuring is simple, yet highly accurate.

 

Sub-Surface

The surface temperature of a pavement is strongly affected by the pavement and soil temperatures below the surface. The sub-surface temperature probe typically measures temperature 17 inches below the roadway surface.

Sub-surface probes are used to determine frost-depth, assist in predicting the pavement surface temperature and can be utilized in pavement forecasting. Similar to the Thermo SCAN, the sub-surface probe uses a thermo-linear network to measure temperature, providing accurate data readings.