Abstract
This paper conceptualises and presents a number of asset management building blocks required to establish holistic management for highway filter drains in the UK roads network. This is accomplished by evaluating current maintenance and management thinking and by identifying how existing strategies are lacking and potentially unsustainable. A condition assessment regime is hence described, tied to a measure of filter drain level of service (drainability) and an asset-specific ageing/renewal model that adopts six discreet condition bands is proposed. For this model to hold true, the Markov process is assumed to represent cumulative damage in a network. Drawing from relevant asset management concepts, a decision support tool to inform and optimise managerial decisions in respect to maintenance planning and resources allocation is also described.
Highlights
Highway filter drains (HFDs) are aggregate-filled trenches fitted with a porous carrier pipe at the base used in the UK to drain significant lengths of the highway network
It is evident that our current thinking is lacking; in terms of planning, management of investments and understanding the factors that drive the deterioration of HFD, our strategies are largely underdeveloped and are primarily based on empirical methods
This is due to a combination of factors; drainage has been neglected in the past, efforts to implement assessment techniques only partially addressed asset management (AM) requirements, strategic guides offer fundamental concepts lacking the ‘engineering-end’ of the management equation and empirical and/or time-based approaches offer limited opportunities to evaluate the physical condition of an asset and to collect relevant and specific HFD data
Summary
Research Engineer, Centre of Innovative and Collaborative Construction Engineering, Loughborough University, UK. Academic Supervisor, School of Civil and Building Engineering, Loughborough University, Leicestershire, UK.
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