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Literature Review on Water Sensitive Urban Design (WSUD)

Info: 3158 words (13 pages) Example Literature Review
Published: 9th Apr 2021

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Tagged: Environmental Studies

Understanding and overcoming socio-institutional impediments to the widespread application of WSUD approaches


Literature Review

  • EVSC90025 WSUD
  • Received: 5 March 2018
  • Word count (excluding abstract, references, in-text citations, headings, tables, figures and italicised text): 1096


This paper examines existing literature on Water Sensitive Urban Design (WSUD), specifically on the topic of the many interrelated social and institutional barriers which impede the widespread implementation of alternative approaches within the urban water sector. Given the extent of cited impediments, the discussion was synthesised into 4 key themes: embedment of an outdated approach in the urban water sector resulting in institutional and jurisdictional fragmentation, inconsistent regulation and uncoordinated frameworks; lack of political will and capacity including inadequate knowledge, resistance to change, and poor leadership; weak economic incentives for public action due to the underappreciation of the true cost of water and externality benefits provided by WSUD processes and techniques and; inadequate community acceptance due to poor engagement. Addressing these key hurdle areas will involve aligning regulation, frameworks and structures to the alternate paradigm of urban water management; introducing capacity building exercises through accreditation and policy interventions; accounting for externalities in economic appraisals and; implementing engagement activities with the broader community.

Keywords Water Sensitive Urban Design, Socio-institutional Impediments, Regulatory framework, Economic incentive, Community acceptance, Political will

1. Introduction [1]

Despite significant advances in the practice of WSUD as an alternative approach to managing urban water systems, its widespread uptake remains very much in its infancy with many governments, organisations and communities still operating within the traditional paradigm of urban water management (Rebekah Ruth Brown & Clarke, 2007). Over the past decade, various scholars have cited these barriers as broadly social and institutional or “socio-institutional” (Bos, Brown, & Farrelly, 2015; Rebekah R Brown, 2005; Lee & Yigitcanlar, 2010; Maksimovic & Tejada-Guibert, 2001; Marsalek, Rochfort, & Savic, 2001; Sharma, Cook, Tjandraatmadja, & Gregory, 2012).

Meticulous lists of such barriers exist in literature. Indeed, Rebekah R Brown and Farrelly (2009) cited 36 barriers, listing a typology of 12 assessed against a capacity framework (see Table 1 and Figure 1 respectively). This paper will not attempt to review each barrier individually, rather, it consolidates them into four prevalent themes:

  1. Embedment of an antiquated “conventional” approach in the urban water sector (e.g. uncoordinated frameworks, inconsistent regulation and guidelines, institutional fragmentation, unproductive inter-governmental relations)
  2. Lack of political will and organisational capacity (e.g. poor political leadership, insufficient knowledge and skills, little or no monitoring and evaluation)
  3. Weak economic incentives for public action (e.g. limited long-term strategic planning and vision)
  4. Poor community acceptance and receptivity (e.g. negative perceptions, limited community engagement, empowerment & participation)

The review also provides suggestions to overcome these barriers.

../../../../../../../var/folders/1z/03vqtwyn3t97k9rlsdpnyk_00000gn/T/com.apple.Preview/com.apple.Preview.PasteboardItems/83../../../../../../../var/folders/1z/03vqtwyn3t97k9rlsdpnyk_00000gn/T/com.apple.Preview/com.apple.Preview.PasteboardItems/839.Table 1 Institutional Barriers Typology –identifying capacity-deficit target areas. Source: (Rebekah R Brown & Farrelly, 2009)

Figure 1 Institutional Capacity Assessment Framework. Source:(R Brown, Mouritz, & Taylor, 2006)

2. Socio-Institutional Impediments

2.1 Embedment of an antiquated “conventional” approach in the urban water sector

Despite significant advances in WSUD techniques and processes, the current system of institutions, organisations and supply options align with the conventional model of urban water management (McCallum & Boulot, 2015). WSUD in practice is heavily weighed down by these very arrangements such that their benefits are rarely fully realised (Sharma et al., 2012)

Using an Australian context, the highly fragmented nature of government agencies, organisations, policies and approval processes relevant to water resource management has constrained WSUD application (T. H. Wong, 2006). Such fragmentation has resulted in overlapping and undefined roles, unclear regulations, conflicting formal mandates,  operational organisations lacking authority and inconsistent policies and guidelines (McCallum & Boulot, 2015). This propagates to delays in approval processes and discouraged investment in innovative water solutions (Tjandraatmadja et al., 2008). Instances where the embedded antiquated paradigm has hindered WSUD uptake are provided in Table 2.

Table 2 Instances where regulation, institutional arrangements and frameworks have limited the uptake of WSUD

Regulation Public health regulations have impeded the potential to use new water sources in urban water supply and provide water of differing classes for differing uses (e.g. using recycled water from purple pipes for gardening, toilet flushing and other low risk activities) (Rebekah Brown, Farrelly, & Keath, 2009)
Institutional Arrangements The lack of institutional separation between service providers and the regulatory and policy functions of governments has discouraged diversity in water service provision (e.g. decentralised services) (Groshinski & Clark, 2015)
Frameworks Frameworks resulting in limited regulatory mechanisms for licensing stormwater abstraction and for ensuring the quality control of stormwater, making it difficult to increase stormwater capture and harvesting (McCallum & Boulot, 2015).

2.2 Lack of political will and capacity

A lack of formal State policy and legal framework for councils to ensure compliance to WSUD requirements indicates a lack of support and leadership at the State level (Choi & McIlrath, 2017).

Adopting the alternative paradigm would require departing from a comparatively tried and tested approach founded on more than a century of practice, (Howe & Mitchell, 2011).  This is exacerbated by the lack of lifecycle operating data with many published examples of WSUD projects referencing performance over months and years rather than decades or its design life (Sharma et al., 2012). Hence, a risk averse climate created by inconsistent regulation, confusing governance arrangements and insufficient knowledge explains this reluctance to “break new ground” (Tjandraatmadja et al., 2008).

2.3 Weak economic incentives for public action

Like many large-scale infrastructural systems, urban water systems are weighed down by enormous sunk infrastructural costs and a life span of physical assets with 100-year design lives, causing institutional “entrapment” that locks out innovative alternatives (Howe & Mitchell, 2011; Marlow, Moglia, Cook, & Beale, 2013).

Investments have typically followed twentieth century traditions characterised by incrementally adding to and extending systems, particularly in response to urban water challenges.  E.g. the Australian government responded to the extended drought by expanding centralised systems (desalination plants) rather than supporting emerging sustainable technologies (Farrelly & Brown, 2011).

The previous example highlights the economic modelling of WSUD features often fail to capture long-term externality benefits such as resilience, environmental and broader system impacts in a way that is rigorous and reflects community values (Marlow et al., 2013). The decision reflected poor strategic vision as these plants have not been used to any great extent (McCallum & Boulot, 2015). This could also explain why water recycling schemes often seem economically unviable despite their ecosystem benefits (Sharma et al., 2012).

2.4 Poor community acceptance and receptivity

Dolnicar and Hurlimann (2009) highlight that WSUD implementation success depends largely on community acceptance due to their decentralised nature, whereby individuals need to participate with managing these assets. Issues in WSU developments[2] occur when community members have limited knowledge on managing/using these systems.

For instance, community perceptions and lack of support are cited as significant barriers to implementing recycled water schemes in Australia (McCallum & Boulot, 2015). Despite general acceptance of the need to conserve water through such initiatives, communities are hesitant to accept alternative water sources due to perceived health risks. Further, WSUD elements and their supposed higher economic burden are likely to only appeal to higher socio-economic groups (Sharma et al., 2012).

3. Methods to Overcome Impediments

3.1 Implement consistent institutional arrangements, frameworks and guidelines

Sharma et al. (2012) emphasise the need to improve vertical and horizontal coordination linking the 3 tiers of government and water industry. Successful WSUD application is complemented by strong co-management between state and municipal councils working together to develop links between strategic directions of regional water managers and local WSUD initiatives (Lee & Yigitcanlar, 2010; Morison & Brown, 2011)

Research by Farrelly and Brown (2011) revealed the “need for flexible regulatory systems and institutional frameworks capable of anticipating, and keeping pace with, the changes required to achieve sustainable urban water management.” Similarly, Choi and McIlrath (2017) indicated that the WSUD policy framework could be improved by providing an “overarching State policy” and clear “mandatory framework” in place of current discretionary frameworks, ensuring decision-makers implement policy transparently and consistently.

Existing guidelines such as the BPEMG[3] and SPP[4] on water quality are considered too narrowly focused on water targets and not supportive of the full range of WSUD objectives (Choi & McIlrath, 2017). Policy control that encompasses all aspects of WSUD could be addressed through releasing universal guidelines.

3.2 Capacity building exercises

Formal accreditation practices and approval processes in line with industry knowledge and standards can improve institutional capacity. Indeed, the development and accreditation of professionals with formal training was a significant step towards its WSUD institutionalisation in Singapore and may be suitable in the Australian context (T. Wong, 2011).

Professional capacity building programs can also help address perceived professional limitations of WSUD knowledge and expertise. Continued experimentation, pilot studies and trials coupled with long-term monitoring studies remain useful policy interventions  (Marlow et al., 2013; Sharma et al., 2012). Validating novel approaches, disseminating information, addressing research gaps and improving associated guidelines, standards and frameworks will help to “mainstream” WSUD approaches.

3.3 Accounting for externalities

Economic models accounting for externalities will more equitably evaluate decentralised solutions.  Regulatory tools targeted at the built environment that can price urban development externalities have had a “demonstrable success in encouraging innovation in water sensitive service delivery” according to McCallum and Boulot (2015).

Appropriate policy and regulation to account for externalities include supporting financial mechanisms such as greater transfer and sharing of costs between all stakeholders associated with implementing WSU whilst a “public awareness programme” can help governments foster greater appreciation for their investment decisions (Groshinski & Clark, 2015). These aim to create economic incentives to innovate and encourage broader private sector participation.

3.4 Community consultation and engagement

Implementing stakeholder engagement and community consultation processes may encourage local ownership and commitment to proposed WSUD schemes (Sharma et al., 2012). Ongoing education of residents in the form of broader information sessions will increase their understanding and acceptance of WSUD features and encourage their appropriate use. Best practices for public engagement and community interaction should also be disseminated to developers.

4. Concluding Remarks

Overcoming current regulation, frameworks and institutional arrangements aligned with incumbent technologies involves institutionalising WSUD approaches. Low political will and capacity is addressed by training, accreditation and continued use of experimentation and pilot studies. Externalities need to be quantified in order to develop economic models that incentivise investment and private sector participation. Community approval for WSUD application can be garnered through informing and empowering community members to participate in the decision-making processes in a meaningful way.


Bos, J., Brown, R., & Farrelly, M. (2015). Building networks and coalitions to promote transformational change: Insights from an Australian urban water planning case study. Environmental Innovation and Societal Transitions, 15, 11-25.

Brown, R., Farrelly, M., & Keath, N. (2009). Practitioner Perceptions of Social and Institutional Barriers to Advancing a Diverse Water Source Approach in Australia. International Journal of Water Resources Development, 25(1), 15-28. doi:10.1080/07900620802586090

Brown, R., Mouritz, M., & Taylor, A. (2006). Institutional capacity. Australian runoff quality-a guide to water sensitive urban design, 5-1.

Brown, R. R. (2005). Impediments to integrated urban stormwater management: the need for institutional reform. Environmental management, 36(3), 455-468.

Brown, R. R., & Clarke, J. M. (2007). Transition to water sensitive urban design: The story of Melbourne, Australia (Vol. 7): Facility for Advancing Water Biofiltration, Monash University Melbourne.

Brown, R. R., & Farrelly, M. A. (2009). Delivering sustainable urban water management: a review of the hurdles we face. Water Science and Technology, 59(5), 839-846.

Choi, L., & McIlrath, B. (2017). Policy Framework for Water Sensitive Urban Design in 5 Australian Cities.: Melbourne, Australia: Cooperative Research Centre for Water Sensitive Cities.

Dolnicar, S., & Hurlimann, A. (2009). Drinking water from alternative water sources: differences in beliefs, social norms and factors of perceived behavioural control across eight Australian locations. Water Science and Technology, 60(6), 1433-1444. doi:10.2166/wst.2009.325

Farrelly, M., & Brown, R. (2011). Rethinking urban water management: Experimentation as a way forward? Global Environmental Change, 21(2), 721-732.

Groshinski, K., & Clark, B. (2015). Promoting Investment in the Water Sector – Discussion Paper. Australian Water Assocation OzWater 2015. Adelaide, Minter Ellison.

Howe, C., & Mitchell, C. (2011). Water sensitive cities: IWA Publishing.

Lee, S., & Yigitcanlar, T. (2010). Sustainable urban stormwater management: water sensitive urban design perceptions, drivers and barriers Rethinking Sustainable Development: Urban Management, Engineering, and Design (pp. 26-37): IGI Global, Engineering Science Reference.

Maksimovic, C., & Tejada-Guibert, J. A. (2001). Frontiers in urban water management: IWA Publishing.

Marlow, D. R., Moglia, M., Cook, S., & Beale, D. J. (2013). Towards sustainable urban water management: A critical reassessment. Water research, 47(20), 7150-7161.

Marsalek, J., Rochfort, Q., & Savic, D. (2001). Urban water as a part of integrated catchment management. Paper presented at the Frontiers in urban water management: deadlock or hope.

McCallum, T., & Boulot, E. (2015). Becoming a Water Sensitive City: A Comparative Review of Regulation in Australia.

Morison, P. J., & Brown, R. R. (2011). Understanding the nature of publics and local policy commitment to Water Sensitive Urban Design. Landscape and urban planning, 99(2), 83-92.

Sharma, A. K., Cook, S., Tjandraatmadja, G., & Gregory, A. (2012). Impediments and constraints in the uptake of water sensitive urban design measures in greenfield and infill developments. Water Science and Technology, 65(2), 340-352.

Tjandraatmadja, G., Cook, S., Sharma, A., Diaper, C., Grant, A., Toifl, M., . . . Gregory, A. (2008). ICON water sensitive urban developments.

Wong, T. (2011). Framework for stormwater quality management in Singapore. Paper presented at the 12th International Conference on Urban Drainage, Proceedings, Porto Alegre, Brazil, International Water Association.

Wong, T. H. (2006). Water sensitive urban design-the journey thus far. Australasian Journal of Water Resources, 10(3), 213-222.

[1]Corresponding author at: Department of Infrastructure Engineering, University of Melbourne, Parkville Campus, Grattan Street, Parkville, Victoria, 3010, Australia. E-mail address: poude@student.unimelb.edu.au

[2] Water Sensitive Urban developments

[3] Best Practice Environmental Management Guidelines

[4] State Planning Policy

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