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| | Manual of Traffic Signs |
 | | Traffic signs are devices placed along, beside, or above a highway, roadway, pathway, or other route to guide, warn, and regulate the flow of traffic, including motor vehicles, bicycles, pedestrians, equestrians, and other travelers. |
 | | Signs that are unwarranted or ineffective may distract road users from more important traffic control devices, may breed disrespect for all signs in the area, and are often a waste of valuable public agency and taxpayers' resources. |
 | | The basic designs of US traffic signs are in the public domain (with a few exceptions, such as the Interstate shield, which is copyrighted by AASHTO). |
| www.trafficsign.us (738 words) |
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