Introduction
An initial assessment has the objective of helping planners and
project desk officers to assess a project in relation to environmental impacts.
The initial assessment shall provide a survey of environmental impacts likely to
ensue if a project is implemented. Usually an initial assessment will be based
on easily accessible information, former research, the local population's views,
etc.
Only potential environmental impacts, direct and indirect, are
identified in the initial assessment. Estimates are not assumed to be
substantiated by special accounts or registrations, but rather comes under a
full assessment. An initial assessment ought to be mastered by personnel without
specialist knowledge of that particular project type, or of environmental
impacts in general. In the course of an initial assessment, the project desk
officer may nevertheless find it necessary to consult environmental expertise.
The initial assessment should attempt to clarify both positive
and negative environmental impacts. However, since the major positive effects
are usually included in the main project account, the initial assessment will
tend to lean towards potential negative impacts.
The EIA-system affords no easy solutions to weighing positive
and negative aspects against one another in a decision-making process. This is
because there are seldom clear objective criteria or threshold values for which
environmental impacts are acceptable or not.
This booklet provides a survey of required information as well
as questions that need to be answered in an initial assessment of urban
development projects.
To offer a brief overview of the subject, Part I describes what
this normally comprises, and what environmental impacts in particular can be
expected. It stresses an account of the specific problems often faced by urban
development projects in developing countries and tropical areas. Part I in this
booklet has a slightly different outline than the other booklets in this series.
This is due to the fact that urban development is considered more an issue than
a project category.
Part II offers a more specific account of the kind of
information that ought to be available as well as questions that should be
answered in an initial assessment of urban
development.