Tunnel Boring Machine Assembly For 7 Line Subway Extension Commences

7 Line Extension7 Line Extension, originally uploaded by plemeljr

First of Two Machines Will Drill 7,100-Foot Tunnels from 11th Avenue and 25th Street to Times Square:

today, a 100-ton tunnel boring machine (TBM) was lowered under 11th Avenue marking the start of excavation work for the 7 line subway extension project. The $2.1 billion project, funded by the City and managed by the MTA, will help transform the Hudson Yards vicinity into a vibrant 24-hour neighborhood, containing a mix of commercial, residential, retail, open space and recreational uses.

The piece of the TBM lowered today near the intersection of 25th Street and 11th Avenue, known as the “cutter head,” has forty-four rotating discs that will drill a tunnel to Times Square. During the project, two TBMs will excavate two, 7,100 foot-long tunnels.

Mini-Manifesto: No Urban Freeways

Interstate System - CMH
Quick Mini-Manifesto:

  1. Urban freeways are linked to childhood asthma and other health issues.
  2. Urban freeways concentrate tailpipe emissions.
  3. Motorists passing through urban cores on freeways generally don’t pay local taxes but leave their carbon footprint via the tailpipe.
  4. Motorists passing through urban cores should be made to travel around the core, affecting less people.
  5. Urban freeways should be removed, replaced with higher-bandwidth transportation options – light rail, heavy rail and commuter rail – to serve residents
  6. Feeder systems and regional service should interconnect with the urban transportation network.

You could do everything above, or just do the following:

  1. Adequately tax the price of tailpipe emissions through congestion pricing.

I know this isn’t fully resolved, especially the increased emissions from making people drive around urban cores and the cost of infrastructure. I get that. This statement is polemical and one-sided on purpose to form a dialectic to studying this urban issue.
Comments?

A Road not Taken


A Road not Taken is a documentary about the solar panels President Carter installed at the White House in 1979 which were taken down in 1986 during the Reagan presidency. Very interesting subject matter, but the trailer unfortunately isn’t very good or succinct.