Impact assessment
has been described as ‘thinking before acting’ (Morrison-Saunders, 2018). It informs the decision-making process by exploring consequences that proposed actions may have on the environment, or in the case of World
properties, on their OUV. It should always be carried out before any irreversible decisions or actions are taken, so that any findings can genuinely inform a final decision. This ensures the best outcomes for the world’s most exceptional places and for society, both today and in the future.
There are multiple stages in the development and implementation of a proposed action (Figure 4.1). An impact assessment needs to take place early enough to be able to influence planning: the later an impact assessment takes place, the less potential it has to influence the outcome. The final impact assessment report needs to be ready in time to help inform the decision on whether the proposed action should proceed, be modified or not be carried out at all – before construction or any other preparatory actions on the ground take place.
Figure 4.1. Development and implementation of a proposed action. An impact assessment needs to take place at an appropriate point in the lifecycle of a proposed action so that it can influence that planning process and inform decision-making.
Note: depending on the type of the proposed action, the ‘construction’ phase might instead involve other forms of preparations; while the ‘operation’ phase could be any longer-term implementation and running of the proposed action.
has been used since the 1970s and is now a well-established system in nearly all countries. Nowadays, many international finance institutions and major commercial banks require borrowers to show that they are safeguarding the natural and cultural heritage as a prerequisite to any lending – impact assessment can help with this. By the 1980s, the World Committee’s had begun to highlight how impact assessment could be used in a World context; over the last decade, the World Committee has requested impact assessments for more than 200 World properties.
4.1.1 The Impact Assessment Process
should start early in the development of a proposed action, and inform the entire planning process.
The assessment itself consists of a series of 11 steps (Table 4.1) which are flexible and can be adapted to the type and location of the action being proposed.
is normally carried out by an independent team of specialists, who are commissioned to inform:
i) the proponent’s planning of the proposed action
ii) the relevant authority’s decision on whether the proposed action should be permitted.
should also include an important component of participation by rights-holders and other stakeholders, including environmental and heritage authorities and communities.
Unlike other impact assessment guidance documents, this Guidance advocates that participation of rights-holders and stakeholders, and proactive problem solving should take place throughout the entire impact assessment process. This is because of the importance of involving rights-holders and other stakeholders in the protection and management of World properties, and because a fundamental purpose of impact assessment is to consider alternatives and mitigation to impacts on their Outstanding Universal Value.
Table 4.1. Overview of the impact assessment process
Table 4.1. Overview of the impact assessment process (cont.)