#Diesel buses are not a good idea for tunnels. And not for Lyon's tunnel modes doux de la Croix-Rousse.
Diesel vehicles are never a good idea. Only in Germany every year 160.000 people die related to diesel caused diseases they say.
#NOX
https://www.lyoncapitale.fr/actualite/lyon-un-tunnel-modes-doux-avec-des-bus-diesel-pour-trois-ans-encore/

A last-ditch October attempt by Hackney Council to suspend the contentious Silvertown Tunnel was rebuffed by Greenwich Council leader Danny Thorpe.

https://www.newhamrecorder.co.uk/news/hackney-failed-in-bid-to-stop-silvertown-tunnel-1-6444719

Final decision on A303 tunnel expected within three months.
The planned 2.1 km (bored) tunnel under the UNESCO World Heritage Site Stonehenge is a source of controversy.

https://www.salisburyjournal.co.uk/news/18136073.final-decision-a303-tunnel-expected-within-three-months/

A TunnelTalk interview w/ M. Herrenknecht
https://www.tunneltalk.com/Company-News-Sep2018-Two-generations-of-tunnelling-at-Herrenknecht.php