Acoustical Warning Device for Locomotive Horns

Campbell, Tom; Parida, Basant; Ross, Jason C.

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Acoustical Warning Device for Locomotive Horns

2022-02-01
By Campbell, Tom ; Parida, Basant ; Ross, Jason C.

File Language:

English

Details

Creators:

Campbell, Tom ; Parida, Basant ; Ross, Jason C.
Corporate Creators:

QinetiQ North America, Inc. ; VHB/Vanasse Hangen Brustlin, Inc.
Corporate Contributors:

United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
Subject/TRT Terms:
Publication/ Report Number:

DOT/FRA/ORD-22/08
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

June 2016
Contracting Officer:

Punwani, John; Omar, Tarek
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration
Abstract:

This report summarizes the research and development of a variable directivity Acoustic Warning Device (AWD) used as a locomotive horn. A Global Positioning System (GPS) was developed to control an arrangement of directional loudspeakers. Loudspeakers are arranged on the locomotive so that sound is directed forward when the horn is initially sounded 1/4 mile from a grade crossing. Other loudspeakers are sounded approaching a crossing to direct sound more to the wayside. This approach reduces wayside noise and maintains horn detectability. The work took place at the Transportation Technology Center (TTC) with wayside sound levels comparing well to predicted patterns.
Format:

PDF
Funding:

DTFR53-12-D-00003L, Task Order 0013
Download URL:

https://rosap.ntl.bts.gov/view/dot/60573/dot_60573_DS1.pdf
File Type:

[PDF - 4.22 MB]
Collection(s):

Federal Railroad Administration
Main Document Checksum:

urn:sha256:d70d124113d3392b58390c379fe36b06bf8d1ab9452f6475c8f39350d50d537c

File Language:

English

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