Global Tunnel Boring Machine Market Assessment, By Machine Type [Slurry TBM, Earth Pressure Balance Machine, Hard Rock TBM, Mixed Shield TBM, Others], By Geology Type [Soft Ground, Hard Rock Ground, Heterogeneous Ground, Variable Ground], By End-user [Road Transport, Railway Transport, Utilities, Metro and Transit, Mining, Oil and Gas, Others], By Region, Opportunities and Forecast, 2018-2032F