![Page 1: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/1.jpg)
The Latest Infrastructure Inspection Technology
November, 2018
Hiroyuki KatoVice President
NEXCO-West USA, Inc.
![Page 2: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/2.jpg)
Background : NEXCO-West
1
Used be a government agency (Japan Highway) Privatized in 2005 and became NEXCO-West
![Page 3: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/3.jpg)
Pilot project in Florida Keys (August, 2009)
2
![Page 4: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/4.jpg)
Motivation
Measuring Crack Spacing
NBI Rating
Structurally
Deficient
(SD)
Chain Drag during Lane Closure
3
AASHTO Element Level Inspection
Condition State Description
1 Good
2 Fair
3 Poor
4 Severe
Rating Description
9 Excellent
8 Very good
7 Good
6 Satisfactory
5 Fair
4 Poor
3 Serious
2 Critical
1 Imminent Failure
0 Failed
MAP-21 requires to report
Element Level Inspection Results for National Highway
Systems
Routine inspection every 2 years (mainly by Visual and hands-on inspection)
![Page 5: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/5.jpg)
Current practice for bridge deck inspection
Chain Dragging and Hammer Sounding technique are widely used
4
![Page 6: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/6.jpg)
Deck Top Scanning System (DTSS)
IR cameraLine scan camera
Line scan camera
Line scan camera
IR camera
Raw and processed IR image
Visual image
13″ (4 m)
5
![Page 7: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/7.jpg)
Infrared Thermography Technology
6
![Page 8: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/8.jpg)
Benefit
7
![Page 9: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/9.jpg)
Deficiency Map for Bridge Decks
8
Liberty St.
North Bound
South Bound
South
DelaminationUnsound patch
![Page 10: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/10.jpg)
Our Experience – Network inspection
9
![Page 11: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/11.jpg)
Our Experience (Long distance inspection)
10
![Page 12: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/12.jpg)
Our Experience (Building in France)
1111
![Page 13: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/13.jpg)
Current Project (Subway Tunnel)
1212
![Page 14: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/14.jpg)
360°Concrete Surface Evaluation
13
Sub-surfaceEvaluation
Surface Evaluation
Highway SpeedInspection
Stationary Inspection
Long DistanceImaging
Short Distance PrecisionImaging
![Page 15: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/15.jpg)
14
Introducing the US product to Japan
![Page 16: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/16.jpg)
15
We are serving as a ‘Bridge’ between U.S. and Japan to exchange latest technologies for their mutual benefit
Bridge between U.S. and JapanExchange of: - Knowledge- Experience- Technologies
![Page 17: The Latest Infrastructure Inspection Technology USA Hiro Presentation.pdfThe Latest Infrastructure Inspection Technology November, 2018 Hiroyuki Kato. Vice President NEXCO-West USA,](https://reader033.vdocument.in/reader033/viewer/2022041600/5e30a4a038003b261e7846d4/html5/thumbnails/17.jpg)
16
Thank you very much! ありがとうございました。
Hiroyuki Kato
Vice PresidentNEXCO-West USA, Inc.
http://www.w-nexco-usa.com/