{"id":7830,"date":"2026-03-30T09:45:46","date_gmt":"2026-03-30T02:45:46","guid":{"rendered":"https:\/\/www.infra-corp.co\/?p=7830"},"modified":"2026-03-30T10:12:15","modified_gmt":"2026-03-30T03:12:15","slug":"accurate-and-fast-iri-survey-for-roads-and-bridges-with-tpl","status":"publish","type":"post","link":"https:\/\/www.infra-corp.co\/en\/accurate-and-fast-iri-survey-for-roads-and-bridges-with-tpl\/","title":{"rendered":"Accurate and Fast IRI Survey for Roads and Bridges with TPL"},"content":{"rendered":"\t\t
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Road and Bridge Survey with TPL | Accurate IRI Measurement to ASTM Standards<\/span><\/strong><\/p>

Measuring pavement roughness (IRI) on bridges is highly complex due to structural vibration and flexibility.<\/span>
These factors can cause conventional survey methods to produce inaccurate results that do not reflect actual pavement conditions.<\/span><\/p>

TPL (Transverse Profile Logger) is specifically designed to support both road and bridge surveys by:<\/span><\/strong><\/p>

  • Delivering accurate data even in vibration-prone environments<\/span><\/li>
  • Overcoming limitations of traditional survey methods<\/span><\/li>
  • Complying with international standards such as ASTM E1703<\/span><\/li><\/ul>

    This ensures stable and reliable measurement of IRI, rutting, and surface texture.<\/span><\/p>

    Rutting Analysis<\/span><\/strong><\/p>

    • Automatically detects rut depth<\/span><\/li>
    • Reduces risks of water accumulation and pavement deformation<\/span><\/li><\/ul>

      IRI Measurement<\/span><\/strong><\/p>

      • Evaluates pavement smoothness according to standards<\/span><\/li>
      • Applicable for both roads and bridges<\/span><\/li><\/ul>

        Surface Analysis (MPD \/ Texture)<\/span><\/strong><\/p>

        • Measures surface texture for skid resistance evaluation<\/span><\/li>
        • Enhances road safety<\/span><\/li><\/ul>

          Transverse Profile Analysis<\/span><\/strong><\/p>

          • Captures full-width pavement profiles<\/span><\/li>
          • Supports analysis of deformation and load distribution<\/span><\/li><\/ul>

            Key Advantages of TPL Technology<\/span><\/strong><\/p>

            Work in Flow (No Road Closure Required)<\/span><\/p>

            • Operates under normal traffic conditions<\/span><\/li>
            • Minimizes disruption to road users<\/span><\/li><\/ul>

              High-Speed Capability<\/span><\/p>

              • Survey speed up to 120 km\/h<\/span><\/li>
              • Improves fieldwork efficiency<\/span><\/li><\/ul>

                Ready-to-Use Digital Data<\/span><\/p>

                • Reduces manual processing steps<\/span><\/li>
                • Enables immediate analysis<\/span><\/li><\/ul>

                  The collected data supports accurate analysis and decision-making, including:<\/span><\/p>

                  • IRI (International Roughness Index)
                    <\/strong><\/span>Standard measurement of pavement smoothness<\/span><\/li>
                  • Rutting
                    <\/strong><\/span>Identifies areas prone to water pooling and structural damage<\/span><\/li>
                  • Transverse Profile
                    <\/strong><\/span>Full-width pavement condition assessment<\/span><\/li>
                  • MPD \/ Texture
                    <\/strong><\/span>Evaluates skid resistance and safety<\/span><\/li>
                  • Early Deterioration Detection
                    <\/strong><\/span>Enables proactive maintenance planning<\/span><\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/section><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

                    TPL (Transverse Profile Logger) is an advanced road survey technology designed for accurate IRI measurement on both roads and bridges. It enables stable, high-speed data collection in real traffic conditions, supporting Rutting, MPD, and transverse profile analysis in compliance with ASTM standards.<\/p>\n","protected":false},"author":2,"featured_media":7822,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[108,109],"class_list":["post-7830","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag--en"],"acf":[],"yoast_head":"\nAccurate and Fast IRI Survey for Roads and Bridges with TPL - iNFRA<\/title>\n<meta name=\"description\" content=\"High-precision IRI survey for roads and bridges using TPL (Transverse Profile Logger). 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