Code: The HUD noise standard is a method
for predicting and assessing traffic noise impact (roadway, aircraft
and railroad). (Click
here for more information on this standard.)
Enforcement: Federal and by local HUD office
General Information: One of the goals of the U.S. Department
of Housing and Urban Development is to provide a decent home
and suitable living environment for every American family.
Dont ALL homeowners and renters deserve such conditions? This
goal should be at the forefront of a design professionals
mind while working on any residential project. Whether it be a single-family
home, a condo or an apartment building, its essential to account
for the existing or potential noise impact on the dwelling. After
all, we are bombarded with loud noises in most aspects of our lives.
The HUD standard is a good criterion to follow. Although many projects
are not required to comply with the HUD standard, a responsible
design professional will ensure their projects are within its relatively
lenient limit of 65 Ldn* or less.
According to the Noise Assessment Guidelines, you must consider
the HUD standard if youre working on a government subsidized
project within 15 miles of a military or civilian airport, 1,000
feet from a road or 3,000 feet from a railroad.
HUD regulations set forth the following exterior noise standards
for new housing construction assisted or supported by the department:
Acceptable - 65 Ldn or less
Normally Unacceptable - Exceeding 65 Ldn but not exceeding
75 Ldn (To achieve an acceptable status, appropriate sound attenuation
measures must be provided.)
Unacceptable - Exceeding 75 Ldn
*Ldn - a 24-hour average sound level (also known as Day Night average
sound level or DNL), in decibels, obtained after the addition of
10 decibels to the sound levels occurring between 10:00 p.m. and
HUD's regulations do not contain standards for interior noise
levels. Rather, a goal of 45 decibels is set forth and the attenuation
requirements are geared towards achieving that goal. It is assumed
that with standard construction, any building will provide sufficient
attenuation so that if the exterior level is 65 Ldn or less, the
interior level will be 45 Ldn or less.
HUD offers three suggestions for mitigating high noise levels on
- Relocate the project to an area where the potential noise levels are significantly less.
- Erect barriers to control vehicular or railway noise.
- Use noise control designs on the buildings exterior. This includes sealing doors, windows and vents and installing doors and windows that provide more than 25 dBA of attenuation.
The extensive Acoustics.com network of experts includes specialists in HUD studies. If you have questions, concerns or are looking to conduct a HUD study, contact us and well connect you with one of our experts, ensuring your project is completed successfully, accurately and responsibly.
Strength: The intent of the HUD study is to be a noise impact
prediction model. It is an accurate, proven standard and comparatively
inexpensive to conduct. HUD studies take all transportation noise
into account: air traffic, road traffic, railroad traffic.
Weakness: HUD studies only account for traffic noise and do not consider other sources of environmental noise (such as nearby businesses, equipment, honking horns, etc