2018-12-11 S&O Agenda - Attachment 1 to Item 16 - Road Infrastructure Asset Management Plan

4.5    Asset Renewals
The purpose of developing a renewal plan is to identify assets that need to be replaced to maintain
the current level of service. Asset failure due to lack of renewal will affect the capacity to deliver
future renewals of road infrastructure and subsequently the service road infrastructure provides to
the Noosa Community. The safety and condition of infrastructure on Council’s road network is critical
to the linkage of Noosa’s communities. The trunk road network in the coastal area is sensitive at
peak periods and the failure or part closure of any of those roads will result in significant delays and
congestion to motorists during peak traffic periods.

Road infrastructure asset renewals are condition based. Condition assessments provide staff the
ability to develop capital renewal programs. The ongoing asset management maturity and
development of the condition assessments and subsequent maintenance and renewal plans relies
heavily on the continued componentisation of all road infrastructure assets within the road corridor.

Renewal expenditure is work which does not increase the road infrastructure design capacity but
restores, rehabilitates, replaces or renews an existing asset to its original service capacity. Improved
condition assessment data capture is currently being developed to include asset renewal
considerations based on physical conditions and estimates of remaining useful life of assets to guide
and improve renewal programs. Renewal plans are developed to maintain levels of service to ensure
assets achieve their optimal useful life before they reach the asset condition range of 5. Staff
continue to work through the various asset classes to develop renewal programs for the specific
asset classes.




In the absence of condition data, an age based approach to identify when Council’s road
infrastructure will reach their useful life has been developed to determine an overall renewal plan.
Priority is required across all the assets classes that have not had physical condition assessments
to develop a suite of renewal programs.


The graph below depicts the planned renewals by asset class over the next 10 years. There are
major renewals identified in the year 2026 for road furniture assets, which is a direct relationship of
when initial asset data was collected and the construction dates of the assets were estimated. It is
expected that through physical condition assessments that spike in renewals will be better defined
and spread over many years as the renewal program will be based on condition and not remaining
useful life.

As the road infrastructure assets age, continued condition assessments are required to monitor the
assets and produce more defined renewal plans. The graph below enables Council to identify and
plan for these significant renewal activities for the next 10 years.




Asset Management Plan: Roads Infrastructure                                                    Page 15