Oklahoma driving lesson · Signs, Signals and Markings
Guide and service signs
A 3-minute lesson from the Oklahoma course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Guide signs give you travel information: they identify highways, show distances, mark exits and point to parks and recreation areas. Service signs show where you can find gas, food and lodging. Knowing them helps you plan lane changes early.
Know the rule
Guide signs are green, white or brown. Brown signs point to recreation, cultural and historical sites.
A marker for every mile on interstate highways, starting at the state line, used to identify the location of accidents, breakdowns or other emergencies.
The litter barrel sign marks the only lawful place on the highway to throw trash. Litter barrels are at all rest and picnic areas and all turnpike toll stations.
Your car breaks down on I-35 just past milepost 4 while heading north. When you call for help, give that milepost: on this north-south interstate it means you are about 4 miles north of the southern state line.
Check your understanding
Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
What does a green, blue or brown sign generally tell you?
A hazard is directly ahead
You must stop immediately
You're entering a work zone
Travel or service information
Answer: Travel or service information
Guide and service signs (green, white, blue, brown) give directions, distances and facility information.
