'Tunnel Boring Machine Market is Expected to Grow at a CAGR of 6.4% and to Reach $8.38 billion by 2025' claims a paid-for report:
https://amazingherald.com/tunnel-boring-machine-market-is-expected-to-grow-at-a-cagr-of-6-4-and-to-reach-8-38-billion-by-2025/