SERVICES

Road information center

Consultations and Studies

  • Expert Assessments
    • Construction Supervision

        • Road Information Systems

        Testing and Measurement

        Certification Department

        Asphalt paving quality mapping (TGS)

        The Challenge 
        Asphalt durability depends heavily on the quality of paving during construction. 
        Time pressure, weather, and logistics make real-time quality control difficult. Without objective monitoring, defects appear quickly, leading to frequent repairs and higher costs. 

        Our Solution – TGS – Data-driven asphalt paving for longer-lasting roads! 

        TGS is a thermal imaging and data system that measures: 

        • Asphalt surface temperature 
        • Paver movement, stops, and speed 
        • All linked with precise GPS coordinates 
        • And more

        This provides real-time insight into paving quality for both the contractor and the client. 

        TGS is suitable for all asphalt pavers, regardless of the manufacturer.

        Proven Results 

        • Used in 150+ national road projects since 2019 
        • Achieved up to 50% longer pavement lifetime 
        • Standard practice in Estonian state road contracts 
        • Supports bonus system to motivate contractors for higher quality 

        Who Benefits 

        • Road authorities – longer-lasting pavement, fewer repairs, reduced lifecycle costs 
        • Municipalities and cities – durable asphalt, less disruption, lower CO₂ footprint 
        • Road construction companies – objective quality data & fair incentive system 

        The device meets the following criterias:

        PROPERTY

        VALUE

        The accuracy of the measurement location (odometer and coordinate).

        ±0.5 m along the road

        Measurement width

        > 5 m

        Longitudinal interval (measurements per meter)

        ≥ 2

        Transverse interval

        ≤ 0.3 m

        Temperature information with location and time stamp

        YES

        Edge removal width

        ≤ 0.3 m

        Measuring distance from the rear edge of the spreader

        < 5 m

        Real-time monitoring of installation temperatures

        YES

        Temperature measurement range

        (25-175) o C

        Accuracy of the device in temperature measurement

        ± 2%

        Recording of thermal images/thermal carpet

        YES

        Spreader movement speed

        YES

        Let’s Build Longer-Lasting Roads Together!

         

        Marek Truu

        Head of Department

        Mob: +(372) 506 8809

        marek.truu@teed.ee Get in touch