C44
1A Porters Ave SSCNVMP C44.1 Introduction This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for 1A Porters Ave. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 33. This SSCNVMP has been prepared in accordance with CRL designation condition 37 and 38 and is Appendix C44 of the Mt Eden Main Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) (BPO) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 1A Porters Ave. This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Main Works.
C44.2 Engagement Mt Eden Main Works Link Alliance representatives XXX met with building representative XXX on XXX date. The matters discussed included: •
An overview of the project
•
General programme, demolition, blasting, rock breaking and utilities relocation activities
•
Overview of the CNV DWP and this SSCNVMP, communications triggers and monitoring
The commercial warehouse features a lightweight façade and openable windows overlooking the rail corridor and worksite. CNV DWP Section 7 identifies summarise the potential scale of noise and/or vibration exceedances using the modelling outputs in insert hyperlink to the GIS maps here. The relevant stages are summarised below. Activity specific mitigation and management measures are included in Section 9 of the CNV DWP, and referenced in brackets, rather than repeated. Noise •
Retaining walls (refer piling in Section 9.8)
•
Excavation (refer concrete and rock breaking in Section 9.7)
The estimated sound level difference across the façade with the windows and doors closed is 20 decibels. The predicted construction noise effects from Table 12.1 in Section 12.1 are predicted to result in XXX noise effects. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Mt Eden Station Main Works. Vibration •
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Excavation and piling (refer breaking, piling and compaction in Sections 9.7, 9.8 and 9.10)
| Mt Eden Main Works CNV DWP – Appendix C SSCNVMPs
