Construction zones have become a familiar sight on highways and in cities and towns across the country. These work zones are often hazardous for motorists and pedestrians trying to navigate them and for the workers who build, repair, and maintain our streets, bridges, and buildings. When construction or work sites have potentially dangerous conditions, it is important to alert motorists and pedestrians who are traveling nearby. Traffic signs are a vital tool for preventing accidents and injury, as well as ensuring the safety of the crews working in these hazardous, fast-paced environments.