Impact Assessment and Project Appraisal

Aims & Scope

Impact Assessment and Project Appraisal ( IAPA ) is an international refereed journal and is the official publication of the International Association for Impact Assessment ( www.iaia.org).

The editors welcome a diverse range of papers, including multi-author and interdisciplinary papers, that focus on the environmental, social, health, sustainability, and/or other assessments of projects, programmes, plans and policies.

IAPA is aimed at readers in universities, government and public agencies, consultancies, NGOs and community groups.

Published six times a year, IAPA contains a variety of peer-reviewed research articles, letters, and book reviews of recently published titles.

IAPA provides a one-source link to the latest ideas in the wide-ranging field of impact assessment.

View Aims & Scope

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Metrics & Ranking

Impact Factor

Year	Value
2025	1.9
2024	1.80

Journal Rank

Year	Value
2024	13464

Journal Citation Indicator

Year	Value
2024	348

SJR (SCImago Journal Rank)

Year	Value
2024	0.414

Quartile

Year	Value
2024	Q2

h-index

Year	Value
2024	62

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Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Web of Science

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Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Environmental Science and Social Sciences, designed to support cutting-edge academic discovery.

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Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Environmental impact assessment: the state of the art

  Citation: 590

  Authors: Richard K.

• International Principles For Social Impact Assessment

  Citation: 546

  Authors: Frank

• Social impact assessment: the state of the art

  Citation: 488

  Authors: Ana Maria, Daniel, Frank

• Sustainability assessment: basic components of a practical approach

  Citation: 370

  Authors: Robert B.

• Sustainability assessment: the state of the art

  Citation: 318

  Authors: Alan, Angus, Jenny

• Rationality in decision- and policy-making: implications for strategic environmental assessment

  Citation: 232

  Authors: Lone, Wil A.H.

• Community engagement and social licence to operate

  Citation: 226

  Authors: Melanie (Lain), Jacki, Frank

• The interminable issue of effectiveness: substantive purposes, outcomes and research challenges in the advancement of environmental impact assessment theory

  Citation: 219

  Authors: Matthew, Richard, Richard, Dick, Alan

• Project-induced displacement and resettlement: from impoverishment risks to an opportunity for development?

  Citation: 218

  Authors: Frank

• Strategic environmental assessment: the state of the art

  Citation: 215

  Authors: Monica, Marie

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