Roadside barrier effectiveness - noise abatement program. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Field study of a variable-height highway-noise barrier. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Noise barrier attenuation: field experience. Final report.

Federal Highway Administration, Washington, D.C.

Noise barrier design handbook. Final report.

Federal Highway Administration, Washington, D.C.

Evaluation of benefits to the federal highway program provided by regulation of vehicle noise emissions.

Mode of access: Internet.

A comprehensive policy to ameliorate adverse effects of transportation facilities. Appendix.

Transportation Department, Office of the Assistant Secretary for Environment, Safety, and Consumer Affairs, Washington, D.C.

Evaluation of ARMCO sound barriers on two bridges on I-495. Final report.

Virginia Department of Highways and Transportation, Richmond

An investigation of site effects on roadside measurement of truck noise. Final report.

Transportation Department, Office of Noise Abatement, Washington, D.C.

The combined effects of porous asphalt surfacing and barriers on traffic noise

There is considerable interest in the use of porous asphalt (PA) surfacing on highways since physical and subjective assessments of noise have indicated a significant advantage over conventional non-porous surfaces such as hot rolled asphalt (HRA) used widely for motorway surfacing in the UK. However, it was not known whether the benefit of the PA surface was affected by the presence of roadside barriers. Noise predictions have been made using the Boundary Element Method (BEM) approach to determine the extent to which the noise reducing benefits of PA could be added to the screening effects of noise barriers in order to obtain the overall reduction in noise levels

Roadside concrete barriers: warrants and end treatment. Final report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin