トンネルの予防保全型管理_管理トンネルの規模・高齢化の現状へ 地域別・工法別トンネル個所数（単位：箇所）
Dataset description
Data description
API
Press "POST" to display the detailed specifications of the API. Next, you can try the API from the screen by pressing "Try it out" button. Then you can send the request by pressing "Execute" button.
Base URL
https://service.api.metro.tokyo.lg.jp