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Northconnix Project Case Study

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Figure 4.4: This map shows the local wildlife corridors that the NorthConnex project could potentially affect.
Source: http://northconnex.com.au/docs/eis/Section%207.6%20-%20Biodiversity.pdf

e) How will it help to reduce the traffic in West Pennant Hills?
Pennant Hills Road was identified by the NRMA (National Roads and Motorists' Association) as the 3rd worst road in New South Wales and in the Australian Capital Territory, and it is the 2nd worst road in Sydney’s road network. The NorthConnex Tunnel is expected to remove 9000 cars and 5 000 heavy vehicles off Pennant Hills Road daily, (appendix A) which is sure to help the traffic move faster. 30 000 motorists are estimated to use the tunnel when it opens (appendix A), however …show more content…

However, there will be an increased amount of heavy vehicle movements carrying machinery and excavated material from the construction sites which could cause an increased amount of dust and noise, there could also be an rise in the air and noise pollution in the area while machinery is excavating in the construction sites, and local residents could also be affected by the ground-borne noise (vibrations and noise from tunnelling) where the tunnel is not very deep. The local residents who were surveyed (Appendix B) did have concerns about the air and noise pollution from the machinery and trucks from the worksites. On the following pages is a photograph (figure 6.1) of the development happening at the Southern interchange. The excavating is in preparation for the facilities shown in the map (figure 6.2) Apart from the issues mentioned above, there shouldn’t be too many disturbances to the local residents during the construction of the NorthConnex tunnel. Figure 6.1- A photograph taken of the construction site at the Southern Interchange, which is to be developed into NorthConnex Facilities (see figure 6.2).
Source: Gemma Truswell, taken on July 15, …show more content…

The average speed travelled in the morning peak hours is 28 km/h, and 32km/h in the afternoon peak hours. The NorthConnex Tunnel is certain to reduce the travel time between these motorways, as up to 21 traffic lights are bypassed and there is a higher speed limit of 80 km/h, so vehicles are able to drive faster and shouldn’t have to stop (appendix A). With these statistics, NorthConnex states that trips will be 6 to 15 minutes faster in 2019, and in 2029, 25 minutes faster based in the current travel conditions on Pennant Hills Road (appendix

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