Review of Environmental Factors - Transport for NSW - NSW ...
Review of Environmental Factors - Transport for NSW - NSW ...
Review of Environmental Factors - Transport for NSW - NSW ...
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3.3 Timing and CostingConstruction is planned to begin in the first half <strong>of</strong> 2012 and construction activities will requirefour to six weeks. The bulk <strong>of</strong> work may require to be undertaken in non-consecutive work days.Proposed construction timing:Standard working hoursMonday to Friday 7.00am to 6.00pmSaturday 8:00am to 1:00pmEvening/weekends/out <strong>of</strong> hours:Work may be undertaken during scheduledpossessionsThe DTRS project has an overarching value <strong>of</strong> $225 million. This includes the design, supply,and installation <strong>of</strong> the DTRS on RailCorp’s electrified network plus a five-year life supportcomponent.3.4 Alternatives to the DTRSAs discussed earlier, the Waterfall Special Commission <strong>of</strong> Inquiry precipitated therecommendations regarding communications in <strong>NSW</strong> rail operations and within RailCorp. The<strong>NSW</strong> Government then committed to a state-wide strategy <strong>for</strong> all rail communications.RailCorp investigated a number <strong>of</strong> alternatives already used by the state government oravailable commercially, looking <strong>for</strong> a system that met its own safety and reliability requirementsas well as the recommendations <strong>of</strong> the Waterfall inquiry.The government alternatives were the existing MetroNet system or the Government RadioNetwork (GRN).The existing MetroNet communication system was not deemed a feasible solution <strong>for</strong> thereasons listed below.• It uses outdated technology and cannot be expanded due to its limited capacity.• It does not have the ability to support the requirements <strong>of</strong> Automatic Train Protection.• It only has one main supplier and this, combined with obsolete technology, means the cost<strong>of</strong> using and maintaining the MetroNet system is increasing at a substantial rate.• It cannot facilitate a communications plat<strong>for</strong>m that can be used by all necessary RailCorppersonnel.• It could not meet interoperability requirements.The Department <strong>of</strong> Commerce’s Government Radio Network (GRN) was not deemed a feasiblesolution <strong>for</strong> the reasons listed below.• It has to be shared with other <strong>NSW</strong> Government agencies.• Priority is given to emergency services which could result in a failure <strong>of</strong> 100% rail networkcoverage.Page 25 <strong>of</strong> 64
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