#32 NEXCO Presents at IBTTA Technology Summit 2025

NEXCO-West USA, Inc. (NEXCO) participated in the International Bridge, Tunnel and Turnpike Association (IBTTA) Maintenance, Engineering & Roadway Operations Workshop held in Detroit, Michigan, USA from July 26th to 29th, 2025. IBTTA is a vibrant, international organization composed of toll road operators and industry stakeholders from around the world. Our president, Masato Matsumoto, participated as a panelist alongside Lowell Choate from Roy Jorgensen and Associates during the workshop. They gave a joint presentation on efficient road maintenance strategies using road surface condition surveys collected by vehicular scanning systems. This PPP project incorporated the design, construction, installation, operation and management, and financing of a roadway entrusted to a private operator through a concession system. It is necessary to monitor the health of the pavement through annual road surface condition inspections and develop appropriate repair plans, and Roy Jorgensen has retained NEXCO to conduct road surface condition inspections any analysis for four consecutive years starting in 2022. The road surface condition inspection involves reporting the status of three types of pavement deficiencies: cracking, rutting, and International Roughness Index (IRI) values. Previously, findings for each matrix was reported individually in comparison with the maintenance performance target values, and Roy Jorgensen responded by repairing any areas that exceeded the target values. Because this maintenance strategy was reactive in nature, it may not necessarily represent the most cost-effective manner. . To introduce opportunities for more to proactive and strategic maintenance plan, NEXCO utilized the metrics combined to provide some idea of data-driven decision making from our toll road operation experiences in Japan. To help understand the visual presentation of the road condition, we proposed to display all findings on a GIS view and determined best repair methods based on the geographical distribution of the findings . Ideally, multiple repair efforts could be bundled into a single lane closure event by accurately determining the nature and extent of findings within target roadway areas. We also proposed that even if certain findings do not exceed the target threshold values, they could be subject to a preventive maintenance if they can be carried out in conjunction with the lane closure opportunity. . This approach introduces efficiencies for preventive maintenance, and serves as a representative example of supporting strategic data-driven decision making.

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#31 Collaboration with Yazaki North America

NEXCO-West USA Enters Service Agreement with Yazaki North America to Support Road Maintenance Initiatives in the U.S.

As a member of TSP2's Innovation Demonstrations group, NEXCO and partner company Yazaki North America performed NDE scanning on over ten busy highway bridges in the Minneapolis area. NEXCO operated visual, infrared, and ground-penetrating radar systems to collect data and analyze the condition of the deck slabs. Ongoing research featuring these bridges aims to shed light on effective practices for condition inspection and maintenance planning. Under this collaboration, Yazaki supports NEXCO's efforts to enhance road and bridge maintenance through the application of innovative technologies. Yazaki North America is a leading automotive solutions supplier. The company designs and manufactures electrical distribution systems, components, electronics, and instrumentation solutions that power and connect modern vehicles, worldwide. Committed to moving society forward through customer-focused innovation, Yazaki delivers premium-quality, collaborative solutions, on time—and with utmost respect.

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#30 Transportation Research Board 2025

NEXCO exhibited and presented at the 2025 Transportation Research Board (TRB) this week. For those of you who stopped by our booth or listened to our president Mr. Matsumoto's lecture on the development of multi-IRT camera stacking technology, thank you! This year, we are offering several new, significant developments in our data acquisition approaches! As our TRB presentation this week detailed, NEXCO is actively developing a dual IRT camera collection method to enable the assessment of asphalt-covered bridge decks. The method further increases analysis confidence levels for bare decks as well! So far, we have found that time-lapse IRT collection, active heating, or collection during very narrow time windows are the only successful ways to obtain accurate data for asphalt-covered bridges. However, none of these methods were practical to apply on large scales (ie. corridor or network-level projects), and cannot be easily collected from a mobile vehicle. To overcome this issue, layered imagery collected at two different angles has already produced highly accurate results in real-world case studies. During these case studies, asphalt covers were removed, and the condition of the bare concrete deck was confirmed by hammer sounding and GPR collection. Bridge owners can look forward to this exciting new technology being implemented soon. Reach out to our team to schedule a time to demo this approach in your region!

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