Deutsche Bahn Fürth Güterzugtunnel map from https://www.bahnausbau-nuernberg-bamberg.de/

Deutsche Bahn CO2 emmission comparisons Deutsche Bahn Fürth Güterzugtunnel brochure from DB project Mediathek...

 Deutsche Bahn Fürth Güterzugtunnel copyright:  Deutsche Bahn Obtained from  Deutsche Bahn Mediatheek...

Statens vegvesen Norway Hagan Tunnel. https://kommunikasjon.ntb.no/pressemelding/bedre-lys-i-hagantunnelen-pa-rv-4-i-nittedal?publisherId=17847490&releaseId=17962568

SME RETC 2023 Conference and Exhibition logo

Kaynak: ibb https://www.metro.istanbul/Hatlarimiz/ProjeHalindekiHatlar?projeInsaat=0&q=34

from BBT SE Media release https://www.bbt-se.com/en/information/news/detail/news/tag-des-offenen-tunnels/

Photograph credits FB/Cengiz via Jesenice municipality information https://www.jesenice.si/medijsko-sredisce/obvestila-za-javnost/item/24024-aktualne-informacije-o-gradnji-druge-cevi-avtocestnega-predora-karavanke

  from PORR press release on 4/4/2023 https://porr-group.com/en/press/press-release/news/contract-awarded-for-lot-h53-pfons-brenner/

Surat Metro Map = Terratec media information https://terratec.co/NewsInfos/detail/105