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InfraDoctor® is a cutting-edge system for supporting infrastructure maintenance utilizing GIS and 3D point cloud data. The system is super efficient, allowing the inspections, maintenance management, road repair and design works to be more precisely targeted.
This is also the core function of iDREAMs® which is an advanced administration system developed by Metropolitan Expressway.

Site Policy


InfraDoctor website (" and information on the website are subject to copyright protection under Japanese copyright laws and international conventions. The content on this website cannot be reproduced without permission from the Limited Liability Partnership (LLP) for providing InfraDoctor software service(hereinafter referred to as "LLP") except for actions permitted under the Copyright Act, such as private use or citations. Also, when citing, always specify the source appropriately. The contents of this website cannot be entirely or partially altered without permission from LLP. Disclaimer Although we make every effort to ensure the accuracy of the information posted on this website, LLP assumes no responsibility for any actions that the user makes using the information on this website.

Usage of this website

The following environments are recommended for viewing this website. Please be aware that this website may not be displayed properly outside the recommended environments.
*This website may be partially inaccessible even in the recommended environments due to security software or network settings etc.
Communication line
Broadband or faster
Supported browser
Recommended environment for the PC site
Internet Explorer Edge
Microsoft Internet Explorer (The left side column menu doesn't follow scrolling.)
Mozilla Firefox latest version
Google Chrome latest version
Apple Safari 9 or later
Mozilla Firefox latest version
Google Chrome latest version
Recommended environment for the smartphone site
Android OS 6.0 series, 7.0 series or later
Chrome browser
iOS 9.2.0 and higher
iOS standard installed browser (Mobile Safari)
This website uses JavaScript. This website may not function properly if JavaScript is disabled in your browser. Enable JavaScript when viewing.
This website contains content that requires plug-ins for PDF files and animations.View with the latest version of Flash Player and Adobe Reader.


Links to this website are generally freely allowed whether for profit or not, and it is unnecessary to contact the LLP in advance.
Please indicate that it is a link to the LLP when linking.However, please refrain from inserting a link that falls or may fall under any of the following categories.
1. Links from websites containing content that slanders products and services related to LLP and InfraDoctor, or content that damages the credibility of the LLP.
2. Links from website containing illegal information.
3. Links from websites that contain content offensive to the public order and morals as well as social ethics.
4. Links such as frame links, image links, etc. which do not indicate that this website is the origin (Please switch the entire browser window to this website or open a separate window and set up the link in a format that displays this website).
5. A link that gives the false impression that it is affiliated or in cooperation with the LLP or a link that gives the false impression that the LLP. recognizes or supports the website of the link source.
6. LLP assumes no responsibility for links.
Even if the link does not fall under any of the above categories, we may ask you to change how the link is inserted or delete the link. In addition, please be aware that the URL of this website may be changed or deleted without notice.


The contents of this website may be changed or deleted without prior notice. We kindly ask for your understanding.