Much like the Hyperloop before it, the core assumption of the Boring company is ill-conceived. Tunnel boring isn't a bottleneck.
The costs of surveys, hvac, seismic research and maintenance required to keep a deep-underground tunnel going are much higher than cut-and-cover. So, even if tunnel boring was free, it still wouldn't make sense to prefer it over other options. There are very scenarios where deep-tunneling makes sense (dense cities, across rivers when bridges are infeasible), but they're the minority.
In most transit projects, cut-and-over is blocked not because it's a bad technical option. It's because NIMBYs refuse to permit on-the-ground disruptions or noise of any type. San Jose is the canonical example. It's a political problem, not a technical one.
The costs of surveys, hvac, seismic research and maintenance required to keep a deep-underground tunnel going are much higher than cut-and-cover. So, even if tunnel boring was free, it still wouldn't make sense to prefer it over other options. There are very scenarios where deep-tunneling makes sense (dense cities, across rivers when bridges are infeasible), but they're the minority.
In most transit projects, cut-and-over is blocked not because it's a bad technical option. It's because NIMBYs refuse to permit on-the-ground disruptions or noise of any type. San Jose is the canonical example. It's a political problem, not a technical one.