4. florida has roads that are designated as part of the national highway system. a. several b. empty c. few d. none of the above 5. if the road surface or visibility is compromised in any way, such as by traffic congestion or bad weather, you must a. drive at the posted speed limit b. adjust your speed c. use cruise control d. stop and wait until the weather improves 6. the highway transportation system is coordinated by a. the u. s. department of transportation b. your local police department c. the department of education d. the internal revenue service 7. what is the “point system”? a. a penalty system that notes infractions made by drivers b. a system that rewards good drivers c. a way to calculate how difficult a driving maneuver is d. a computer system found in police stations 8. the united states highway system is a in the united states numbered within a nationwide grid. a. police department b. insurance company c. system of roads d. all of th