TITLE 23 - HIGHWAYS

CHAPTER I - FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

SUBCHAPTER H - RIGHT - OF - WAY AND ENVIRONMENT

PART 772 - PROCEDURES FOR ABATEMENT OF HIGHWAY TRAFFIC NOISE AND CONSTRUCTION NOISE

772.17 - Traffic noise prediction.

  (a) Any analysis required by this subpart must use the FHWA Traffic Noise Model (FHWA TNM), which is described in FHWA Traffic Noise Model Report No. FHWAPD96010, including Revision No. 1, dated April 14, 2004, or any other model determined by the FHWA to be consistent with the methodology of the FHWA TNM. These publications are incorporated by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51 and are on file at the National Archives and Record Administration (NARA). For information on the availability of this material at NARA call (202) 7416030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

These documents are available for copying and inspection at the Federal Highway Administration, 400 Seventh Street, SW., Room 3240, Washington, DC 20590, as provided in 49 CFR part 7. These documents are also available on the FHWA's Traffic Noise Model Web site at the following URL: http://www.trafficnoisemodel.org/main.html.

  (b) In predicting noise levels and assessing noise impacts, traffic characteristics which will yield the worst hourly traffic noise impact on a regular basis for the design year shall be used.

[47 FR 29654, July 8, 1982; 47 FR 33956, Aug. 5, 1982, as amended at 70 FR 16710, Apr. 1, 2005]