After years of technical analysis, public input and federal review, the Santa Clara Valley Transportation Authority (VTA) recently selected the single-bore tunnel as the preferred design method for ...
This column originally appeared in On The Way, a weekly newsletter covering everything you need to know about NYC-area transportation. Sign up to get the full version, which includes answers to reader ...
A giant HS2 boring machine has broken through to complete the first section of a 3.5-mile tunnel on the route’s approach into Birmingham. The 125-metre long, 1,600-tonne machine, named Mary Ann by the ...
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