Webuild Infografica Palermo Catania high capacity railway Webuild media release: https://www.webuildgroup.com/en/media/press-releases/webuild-wins-1-2-bln-contract-to-upgrade-high-capacity-railway-between-palermo-and-catania-in-sicily

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...

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/

from https://urbanutilities.com.au/newsroom/articles/mega-sewer-upgrade-begins-four-storeys-beneath-brisbane-streets-IqdpVGnSPUiPNt4raX5jqw

Statens vegvesen Tunnel rehabilitation image with press release: https://kommunikasjon.ntb.no/pressemelding/hab-skal-rehabilitere-tunneler?publisherId=17847490&releaseId=17958705&lang=no