ENOVA

The acoustic firm Tisseyre + Associés has developed a methodology for joint work with architects and town planners, particularly relevant in the context of the creation of new districts such as ENOVA. Indeed, our 4D digital soundscape modeling tool in the future state of completion, the BIMAE^®, is an essential work support for close collaboration with architects and urban planners at all stages of the project. By modeling the sound evolution during a day of transport routes and human activities in urban planning, our tool checks the acoustic balance between these different sound sources in order to avoid nuisance. In addition, the joint study of the internal and external functions of the projects and the 3D visualization of the sound propagation at the foot, in the facade and around a building makes it possible to anticipate, optimize and integrate the acoustic solutions within street furniture and the architecture of the project in order to create sound atmospheres consistent with the uses.

Mapping of daytime sound levels throughout the urban planning

Mapping of noise levels at night throughout the urban planning

Impact study of the introduction of the aerial metro in a new district

The noise impact of the introduction of an uncontrolled aerial metro can have serious consequences on the uses of the inhabitants of the district. Thanks to BIMAE^®, we modeled the sound impact of a metro in operation in the future state of completion on urban planning from the design phase. Thus, for example, we can design acoustic solutions integrated into the town planning and architecture of neighboring buildings in order to avoid maximalist acoustic protection, which often causes visual discomfort. Nevertheless, more than a tool for sizing acoustic engineering solutions for sound insulation, the BIMAE^® is also a method of support for thinking about the choice of soundscapes for urban planning.

Reflection on the allocation of buildings in urban planning

By taking into account all future sound sources, the BIMAE® is a real decision-making tool. It allows urban planners and architects to have clear information on the trade-offs to be made in order to create balanced and coherent sound environments. Thus, the BlMAE^® makes it possible to clarify the arbitrations and to take decisions according to several criteria:

• The sound insulation of buildings and street furniture;
• Choice of use of buildings near the aerial metro (tertiary buildings do not have the same insulation needs as housing);
• The land allocation of the building;
• The orientation of the building in relation to transport routes (café terraces, housing, etc.).

By adapting its scale, the BIMAE® makes it possible to identify potential points of tension between noise from transport and human activities in specific time slots and locations. In function we prescribe solutions in order to wait for a balance and a coherence of the soundscape:

Zoom of sound levels over a time slot related to transport noise

Zoom of sound levels over a time slot related to the noise of human activities