# Highway Noise Barriers: Performance, Maintenance and Safety

Department of Transportation Video VH-707 Highway Noise Barriers: Performance, Maintenance and Safety AVA19985VNB1. John A. Volpe National Transportation Systems Center, Cambridge, MA. Acoustics Facility. The video illustrates different aspects of highway noise barriers. Topics covered include basic acoustics, barrier perforance, types of barriers, barrier materials, and maintenance and safety concerns.

- Kind: Educational
- Year: 1996
- By: Department of Transportation
- Genres: Education
- Archive: [Internet Archive](https://archive.org/details/gov.dot.fhwa.ttp.vh-707)
- Licence or status: [CC0 1.0](http://creativecommons.org/publicdomain/zero/1.0/) (as the archive states it)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

Not offered: its uploader or archive marks it public domain, and nothing the site holds bears that out (its record gives no year, or a year from 1978 on, which no US term has left), so where it is free is not known. Unclear is not offered.