Highway maintenance workers need knowledge in the following areas:

• Public Safety and Security: How to protect people and property.
• English Language: The meaning and use of the English language.
• Transportation: The methods and costs for moving people, goods, and materials.
• Building and Construction: The tools and methods used to construct buildings, roads, and other structures.
• Education and Training: The methods of teaching and learning.
• Administration and Management: How to run a business or group.