The image is in the Manual of Traffic Control Devices (MUTCD) which is in the public domain. There is no copyright. Instructions on how to extract images are here: http://mutcd.fhwa.dot.gov/image_extraction.htm.
"The MUTCD is in the public domain and as such it is not copyrighted. Individuals can use material from the online version of the MUTCD, such as tables, figures, and text quotations, without seeking permission from the FHWA."[1]
Any traffic control device design or application provision contained in this Manual shall be considered to be in the public domain. Traffic control devices contained in this Manual shall not be protected by a patent, trademark, or copyright, except for the Interstate Shield and any other items owned by FHWA.
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
{{Information |Description = The BMUFL sign, R4-11 |Source = United States Federal Highway Administration, http://mutcd.fhwa.dot.gov/htm/2009/images/fig9b_02.gif |Date = 2009-12-01 |Author = United States Federal Highway Administration |Permission = Th...
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