This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Sasago TunnelCh Expwy model . en Cross section model of Sasago Tunnel ja own Asanagi nikkei SasagoTNnaibu cczero Uploaded with Sasago Tunnel Chuo Expressway Cross sections
Page 2023 Free-images.com. All images are Public Domain