Table 1

Summary of advantages and disadvantages of existing main sustainability assessment methods

Method (technique)ApplicationAdvantagesDisadvantages
LCAAll civil infrastructure and buildings
  • Applicable throughout the life cycle of projects

  • Applicable for environmental risk management and strategic decision-making

  • Large data input requirement

  • Very time-consuming process

  • Lack of social impacts consideration

WLCAll civil infrastructure and buildings
  • Applicable throughout the life cycle of projects

  • Useful for appraisal of future financial needs of projects

  • Requires considerable knowledge and expertise to use

  • Lack of standardised methodology

BRSsMainly applicable to buildings
  • Multi-dimensional assessment often verified by a third party

  • Normally includes a green building certification scheme

  • Can be applied only to building construction sector

  • Does not consider the economic (financial) aspects of projects

CeequalAll civil infrastructure and buildings
  • Evidence-based assessment

  • Assessment by trained assessor as well as review and validation by an external verifier

  • Award-focused

  • Lack of a balanced holistic approach (emphasis on environmental considerations)

HalstarAll civil infrastructure and buildings
  • Based on systems thinking approach

  • A comprehensive database of criteria and indicators

  • Complicated, time-consuming process

  • Potential for tool fatigue

SPeAR®All civil infrastructure and buildings
  • Flexibility and ability to be modified

  • Not reward-driven

  • No weighting for indicators/criteria

  • Oversimplified scoring system

  • Very broad and generic indicator sets

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