green wall

the Previous idea of structure ribs did not work on a large scale,
the Acoustic wall was built out of thousands of units – each material should match its own box and for the facade, even if the acoustic material will be the same in most of the  boxes/facades , yet the  involvement is very cumbersome.
The true size of the rib structure in reality creates a problem of  the right main material , and finding the appropriate connectors.
Because the wall is composed of so many parts, thats enough that one small part will not exactly feet and the acoustics  will not work!

 more problems were creating a series of cuts (tennis court, skateboard, sitting, walking, bicycle, etc.) difficult to deal with these shapes and connect them in the form of a rib structure.

New idea - green wall

talking about acoustic wall, built a foundry on the site, the shape will still be curvature, and perforated in shapes of  pentagon (can be any other shape)  –(a similar idea was at first) but will fill in the forms: can be a green wall – grass, lighting, transparent material, some tubes can stay open for children to hide or play… - a connection between the exterior, you can feel the different materials.

acoustic wall with other functions: shadow, light, seating..

Design _CONCEPT

some ideas for acoustic walls3

some ideas for acoustic walls2

some ideas for acoustic walls….

documentation

simulations

ACOUSTIC BARRIERS-The kinds of acoustic barriers which exists in israel _

 

Noise barrier

A noise barrier  is an exterior structure designed to protect sensitive land uses from noise pollution.

Noise barriers are the most effective method of mitigating roadway, railway, and industrial noise sources – other than cessation of the source activity or use of source controls.

In the case of surface transportation noise, other methods of reducing the source noise intensity include encouraging the use of hybrid and electric vehicles, improving automobile aerodynamics and tire design, and choosing low-noise paving material. Extensive use of noise barriers began in the United States after noise regulations were introduced in the early 1970s.

The acoustical science of noise barrier design is based upon treating a roadway or railway as a line source.

The theory is based upon blockage of sound ray travel toward a particular receptor; however, diffraction of sound must be addressed.

Sound waves bend (downward) when they pass an edge, such as the apex of a noise barrier. Further complicating matters is the phenomenon of refraction, the bending of sound rays in the presence of an inhomogeneous atmosphere. Wind shear and thermocline produce such inhomogeneities.

The sound sources modeled must include engine noise, tire noise, and aerodynamic noise, all of which vary by vehicle type and speed.

The resulting computer model is based upon dozens of physics equations translated into thousands of lines of computer code.

Some noise barriers consist of a masonry wall or earthwork, or a combination thereof .

 Sound abatement walls are commonly constructed using steel, concrete, masonry, wood, plastics, insulating wool, or composites.

In the most extreme cases, the entire roadway is surrounded by a noise abatement structure, or dug into a tunnel using the cut-and-cover method. The noise barrier may be constructed on private land, on a public right-of-way, or on other public land. Because sound levels are measured using a logarithmic scale, a reduction of nine decibels is equivalent to elimination of about 80 percent of the unwanted sound.

Noise barriers can be extremely effective tools for noise pollution abatement, but theory calculates that certain locations and topographies are not suitable for use of any reasonable noise barrier. Cost and aesthetics play a role in the final choice of any noise barrier.