Digital Train Radio System Kingsgrove BTS Site Review of ...

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3.6 Justification of the Preferred Option It was decided to construct a BTS approximately 25 metres north-east of Kingsgrove railway station because it will enable the site to be consistent with the whole RailCorp DTRS network. Consistent technology choice will enable RailCorp to improve its existing quality of service, reliability and emergency responsiveness. The reasons for selecting the technology are discussed above. The Kingsgrove site was selected due to is ability to cover the section of track between neighbouring sites Bardwell Park and Beverly Hills. The proposed antenna height of 24 metres is the minimum height required to provide optimum radio frequency coverage for these sections of track. The proposed site is also close to existing fibre and power supply and has good construction and maintenance access. The proposed work will not require the removal of native vegetation. The Kingsgrove site was selected for the additional reasons listed below: A Radio Frequency (RF) modelling performed identified the selected site as the most suitable location for this section of track. The site will not impact on existing RailCorp infrastructure such as overhead and underground services and will not impact on train drivers line of sight or signalling equipment. It is ideal to install the site within the northern end of the railway track as an underline crossing (ULX) is not required for access to power and fibre services. Alternative sites further east and further west were examined but were rejected due to the following reasons: The original proposed site location is to build the BTS site on eastern end of Kingsgrove railway station platform. This proposal was rejected as construction work activities will disrupt train commuters. Building the BTS site on the original proposed location is significantly difficult and will require scheduled trackwork to complete construction works. The site cannot be installed approximately 100 metres west of Kingsgrove railway station within the northern rail corridor as there is an existing power substation located on the curvature of Commercial Street and Vanessa Street. The BTS site will need sufficient clearance distance. An alternative location for the BTS site could be installed approximately 180 metres southwest of Kingsgrove railway station within the northern rail corridor. However, due to the narrow railway corridor and the large distance to the nearest RailCorp network access point for fibre services, this site location was rejected. Page 30 of 78
Shifting the site further south-west alongside Vanessa Street is unfeasible as it would not provide sufficient Radio Frequency (RF) coverage between this site and neighbouring site, Bardwell Park. There are no other alternative sites further west within the southern rail corridor as the rail corridor is narrow and no easy access to RailCorp land. There are no suitable site alternative locations further east of Kingsgrove railway station as the northern and southern rail corridors are narrow due to the existing barricading noise screening walls alongside the rail corridors providing limited construction space. The next available space for the BTS equipment could be installed approximately 400 metres north-east of Kingsgrove railway station within the northern rail corridor near the road junction of Nairn Street and Kingsgrove Avenue. However, an existing overhead power lines are already running alongside this side of the rail corridor and the BTS equipment will require sufficient distances away from existing services. Therefore, this site location was rejected. In summary, a higher pole, or an additional DTRS facility would be required if the site was to be relocated. It was decided that a single 25 metre pole would offer the least impact on the local environment while still meeting operational requirements. Minimisation of Environmental Impact during Site Selection To ensure environmental impacts are minimised at the site, whilst still meeting operational requirements, a review of site constraints was undertaken. Maximise distance to nearest sensitive receiver Whilst the pole will have some level of visual impact, it has been located, as far as is practicable, away from nearby sensitive receivers. Furthermore, antennas will be oriented away from sensitive receivers. Section 1.3 identifies the location of nearby sensitive receivers for assessment. This approach will also ensure that any Electro-magnetic Energy (EME) impacts are mitigated. The maximum EME will be 0.048% of the safe ARPANSA exposure limits. This maximum level will be encountered in the direction of the antennas, which is along the rail tracks, hence it is expected that the sensitive receivers will encounter far less than this level. Section 4.13 discussed the EME from the site. Page 31 of 78
Page 1 and 2: Digital Train Radio System Kingsgro
Page 3 and 4: 4.12 Socio-Economic Effects .......
Page 5 and 6: • Conduit feeder cables to connec
Page 7 and 8: 1 Introduction 1.1 Background to th
Page 9 and 10: The proposed BTS site will be insta
Page 11 and 12: Figure 3 View of proposed site faci
Page 13 and 14: 2 Statutory Position and Requiremen
Page 15 and 16: 2.4 Other Relevant Environmental Pl
Page 17 and 18: (b) Complied with any reasonable pr
Page 19 and 20: 2.6 Commonwealth legislation Enviro
Page 21 and 22: ESD Principle Conservation of biolo
Page 23 and 24: Power cabinet The power cabinet wil
Page 25 and 26: Assembly of monopole and attachment
Page 27 and 28: 3.4 Alternatives to DTRS As discuss
Page 29: 3.5 Alternatives to the Kingsgrove
Page 33 and 34: 4 Environmental Impact & Risks 4.1
Page 35 and 36: situated along the main roads (i.e.
Page 37 and 38: Trucks and train carriages transpor
Page 39 and 40: The ICNG states: Where the predi
Page 41 and 42: Rating Rating Rating Rating Rating
Page 43 and 44: Table 2 Construction Noise Control
Page 45 and 46: Control Measures Impacts to heritag
Page 47 and 48: Potential Impacts It is highly unli
Page 49 and 50: 4.10 Visual Aesthetics and Urban De
Page 51 and 52: Control Measures Visual impact will
Page 53 and 54: The BTS will be located in RailCorp
Page 55 and 56: 4.17 Demand on Resources Constructi
Page 57 and 58: Clause 228 Factor Impacts Comments
Page 59 and 60: Table 4 Consideration of EPBC Facto
Page 61 and 62: 4.20 Summary of Control Measures La
Page 63 and 64: Heritage If a non-Aboriginal hist
Page 65 and 66: Visual Aesthetics and Urban Design
Page 67 and 68: 4.21 Implementation Process The pro
Page 69 and 70: Appendix 1: Principles from the Tel
Page 71 and 72: Principle 2: Telecommunications fac
Page 73 and 74: Principle 4: Minimise disturbance a
Page 75 and 76: Principle (l) The likelihood of imp
Page 77 and 78: Appendix 3: Database searches Extra

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