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Phase 2
Indeed, previous experience on DIAPASON
demonstrated that the GIS-platform
should be central to the application
(and not simply a peripheral tool
connected to the noise propagation
software package). As an evidence
choice of the most adequate GIS platform
is part of the work. Open-GIS technology
will be the key word in the respect.
(relevant partner to be confirmed).
Additionally correlation with work
performed during the complementary
HARMONOISE project with be established.
The open character of the proposed
software will allow the easy integration
of alternative models describing the
sound propagation in urban or sub-urban
areas, possibly relying on a more
statistical description of the noise
attenuation effects associated with
variously dense constructions spread
over more or less large areas.
With respect to noise annoyance (and
its tight connection to dose-effect
relationship considerations), it is
anticipated to use standard and advanced
techniques to derive refined indicators,
i.e. improving the information that
may come out from the simple equivalent
continuous sound pressure level (proposed
Lden, Leq night estimators in the
Directive). A refined period concept
(as compared to standard day/evening/night
division) could be proposed to account
for the specificity of traffic rush
hours phenomena for example. Regarding
these aspects Phase 2 will allow improving
the noise annoyance potential (NAP)
concept and tools and thus propose
operational solutions related to end-users
needs.
Indeed previous analysis of the annoyance
indicators derived from noise measurement/predictions
over urban zones clearly demonstrated
the need for such refined indicators
(ref. conclusions of WG1). As an example,
the standard LAeq estimator is not
capable of accounting for noise emergence,
which is identified in a number of
situations as one of the most relevant
parameters in order to understand
the link between physical noise and
its negative perception by citizens.
Phase 2 core work will consist in
the development leading to a software
demonstrator ready for evaluation.
The connection established with independent
research centres associated to the
consortium and recognised for its
deep experience in the field will
ensure adequacy of its technical content
as well as results output relevance.
•CONTEXT
• TECHNICAL DESCRIPTION
• FOLLOWING WORK
• GREATER LYON METHODS
• GENERAL INFORMATION ABOUT NOISE
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