Brooks Hill to Bungendore
The line reaches its highest point of about 812m above sea level in the early part of this sector, and then descends the far side of the range down into Bungendore.
Month: September 2014
Kowen Forest deviation
A deep cutting or tunnel is the only way to avoid the tight curves near Kowen Forest.
Molonglo Gorge Crossing
The existing track through the Molonglo Gorge is one of the most difficult sections of the entire existing line. It is extremely tight, with radii as small as 240m limiting speed to 60km/h or less. For this reason, few previous proposals have considered an easterly exit from Canberra. While straightening…
Land acquisition
Although a major rationale for Hot Rails is re-use of the existing rail corridor, there are numerous places in which the existing corridor is not straight enough to enable high-speed use, no matter the degree of cant or tilt adopted. In these sections land will still have to be acquired….
Power
Although Hot Rails will not specify any power infrastructure, we will include some cost estimates of it here all the same. AECOM13 AECOM13’s estimates are detailed in the table below; the total cost of $5.2 billion comes to an average of $2.975m/km. [table] Element,Cost,Unit,Frequency Modify existing substation,$5m,Each,As needed New transmission…
Signalling and Control
Signalling and Control includes the systems set up to ensure safe operation of multiple trains, track switching, scheduling, and related systems. Some estimates also include “communications”, with expenses such as wi-fi basestations that allow on-board internet connectivity. AECOM13 calculates signalling on a unit basis, rather than a per-km basis, which…
Bridges and Viaducts
After tunnels, bridges and viaducts are the second-most expensive line-item in the most of the various proposals for Australian high-speed rail. Here we will provide estimates for cost-per-kilometre of standard bridge types, as well as rail-specific cost-functions for major bridges that require unique specification. AECOM13 estimates The 2013 high speed rail…
Stations
AECOM13 manages to spend $7.1 billion on new and unnecessarily expensive stations (indeed, compare this cost to the actual track, at only $6.6 billion). This post demonstrates that this cost is excessive by comparison to contemporary examples, and proposes a more realistic and affordable estimate. The Hot Rails strategy, in…
Earthworks
The AECOM13 study has a detailed cost breakdown for various types of earthworks, a simplified version of which will be adopted for Hot Rails. First, some definitions: “Cut” is your basic excavation – there is dirt or rock in your way, and you want it not to be there. “Fill” is…
General Civil Works
General civil works refers to all the incidental stuff that needs to be built in order to make the alignment safe, low maintenance, and with minimal impact on other transport corridors or existing development. We will include the following items in this category: Roadworks Fencing Safety barriers Retaining walls Drainage Noise…
-
Kowen Forest deviation
A deep cutting or tunnel is the only way to avoid the tight curves near Kowen Forest.
Molonglo Gorge Crossing
The existing track through the Molonglo Gorge is one of the most difficult sections of the entire existing line. It is extremely tight, with radii as small as 240m limiting speed to 60km/h or less. For this reason, few previous proposals have considered an easterly exit from Canberra. While straightening…
Land acquisition
Although a major rationale for Hot Rails is re-use of the existing rail corridor, there are numerous places in which the existing corridor is not straight enough to enable high-speed use, no matter the degree of cant or tilt adopted. In these sections land will still have to be acquired….
Power
Although Hot Rails will not specify any power infrastructure, we will include some cost estimates of it here all the same. AECOM13 AECOM13’s estimates are detailed in the table below; the total cost of $5.2 billion comes to an average of $2.975m/km. [table] Element,Cost,Unit,Frequency Modify existing substation,$5m,Each,As needed New transmission…
Signalling and Control
Signalling and Control includes the systems set up to ensure safe operation of multiple trains, track switching, scheduling, and related systems. Some estimates also include “communications”, with expenses such as wi-fi basestations that allow on-board internet connectivity. AECOM13 calculates signalling on a unit basis, rather than a per-km basis, which…
Bridges and Viaducts
After tunnels, bridges and viaducts are the second-most expensive line-item in the most of the various proposals for Australian high-speed rail. Here we will provide estimates for cost-per-kilometre of standard bridge types, as well as rail-specific cost-functions for major bridges that require unique specification. AECOM13 estimates The 2013 high speed rail…
Stations
AECOM13 manages to spend $7.1 billion on new and unnecessarily expensive stations (indeed, compare this cost to the actual track, at only $6.6 billion). This post demonstrates that this cost is excessive by comparison to contemporary examples, and proposes a more realistic and affordable estimate. The Hot Rails strategy, in…
Earthworks
The AECOM13 study has a detailed cost breakdown for various types of earthworks, a simplified version of which will be adopted for Hot Rails. First, some definitions: “Cut” is your basic excavation – there is dirt or rock in your way, and you want it not to be there. “Fill” is…
General Civil Works
General civil works refers to all the incidental stuff that needs to be built in order to make the alignment safe, low maintenance, and with minimal impact on other transport corridors or existing development. We will include the following items in this category: Roadworks Fencing Safety barriers Retaining walls Drainage Noise…