Review of Environmental Factors - Transport for NSW - NSW ...

The skip bin and site compound area will be within the rail corridor near the site. The construction process willrequire a team of three to six people on site per day.3.3 Timing and CostingConstruction is planned to begin in first half of 2012 and scheduled to run for a period of six weeks.Proposed construction timing:Standard working hoursEvening/Weekends/Out of hours:Monday to Friday 7.00am to 6.00pmSaturday 8:00am to 1:00pmNo night works or out of hours works proposedNo work on Sundays/public holidaysThe DTRS project has an overarching value of $225 million. This includes the design, supply, and installation ofthe DTRS on the RailCorp electrified network plus a five-year life support component.3.4 Alternatives to the DTRSAs discussed earlier, the Waterfall Special Commission of Inquiry precipitated the recommendations regardingcommunications in NSW rail operations and within RailCorp. The NSW Government then committed to a statewidestrategy for all rail communications.RailCorp investigated a number of alternatives already used by the state government or available commercially,looking for a system that met its own safety and reliability requirements as well as the recommendations of theWaterfall inquiry.The government alternatives were the existing MetroNet system or the Government Radio Network (GRN).The existing MetroNet communication system was not deemed a feasible solution for the reasons listed below.• It uses outdated technology and cannot be expanded due to its limited capacity.• It does not have the ability to support the requirements of Automatic Train Protection.• It only has one main supplier and this, combined with obsolete technology, means the cost of using andmaintaining the MetroNet system is increasing at a substantial rate.• It cannot facilitate a communications platform that can be used by all necessary RailCorp personnel.• It could not meet interoperability requirements.The Department of Commerce’s Government Radio Network (GRN) was not deemed a feasible solution for thereasons listed below.• It has to be shared with other NSW Government agencies.• Priority is given to emergency services which could result in a failure of 100% rail network coverage.• The network is both inside and outside the rail corridor.Page 25 of 67