This week in transport (18 January 2015)

Posted: January 19, 2015 in Transport
Tags: , , ,

VIDEO: Be rewarded by travelling with Opal

Monday: New substation for North Shore Line to increased train frequencies

Approval has been given for a new substation South of Lindfield Station to handle increased train frequencies on the Upper North Shore Line. The line currently has 15 trains per hour in the AM peak North of Chatswood, but the government plans to boost this to 20 trains per hour once the North West Rail Link opens in 2019. This will require additional electricity to power the extra trains on that section of the network. Construction is expected to be completed in 2016.

Wednesday: Final Tunnel Boring Machine for NWRL starts digging

The fourth and final Tunnel Boring Machine (TBM) has begun digging a tunnel for the North West Rail Link (NWRL) and its twin 15km tunnels. The 3 TBMs already in place have collectively dug almost 2.7km of the 30km of tunneling required, excavating 278,000 tonnes of crushed rock.

  • TBM1 Elizabeth, named after colonial pioneer Elizabeth Rouse, has dug more than 1.8km of tunnel so far from Bella Vista since September 2014;
  • TBM2 Florence, named after Australia’s first female architect and engineer Florence Mary Taylor, has dug more than 710m from Bella Vista since October 2014;
  • TBM3 Isabelle, named after Isabelle Andersen (aged four) to represent all the tunnel builders, has dug more than 150m from Cherrybrook since November 2014;
  • TMB4 Maria, named after 19th century Aboriginal rights advocate Maria Lock, began digging from Cherrybrook in January 2015.
4 tunnel boring machines like these will be used on the NWRL. Click to enlarge. (Source: Transport for NSW)

4 tunnel boring machines like these will be used on the NWRL. Click to enlarge. (Source: Transport for NSW)

  1. Todd says:

    is there any other projects that will need to be completed in order to have 20tph? a new substation seems a little too easy.
    Any ideas where the extra 5tph are going to run west of Central?

  2. @Todd –

    As long as trains have the same stopping pattern, the only other thing required is sufficient turnback platforms. There are quite a few of these on the North Shore Line at Gordon, Linfield, Hornsby, Berowra, etc (if memory serves me right). These enable trains to begin/end their run while allowing other trains to pass them.

    If stopping patterns vary, then track must also be duplicated to allow faster gains to overtake slower ones.

    The Western and Northern Line run 30 trains per hour during the AM peak (10 terminate at Central, 20 continue through the CBD). These lines link up with the North Shore Line via the Harbour Bridge. So there is plenty of capacity for 20 trains per hour from the North Shore to continue past the CBD.

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