This is an example of a directional sign with a secondary symbol. It is used to indicate that amphitheater parking is located to the right.
Federal Highway Administration Manual on Uniform Traffic Control Devices for Streets and Highways, 2003 Edition (including 2004 and 2007 revisions) (Washington, DC: United States Department of Transportation, 2007)
384.4 KiB
2052×3000, 167.8 KiB
700×1024, 14.2 KiB
437×640, 8.7 KiB
218×320, 4.7 KiB