Guide and Informational Signs
Guide and informational signs help you navigate, find services and identify routes. They rarely impose a legal duty, but the Florida test uses them to check whether you can read destinations, exit numbering and service symbols quickly at highway speed.
Green, blue and brown
Green signs give destinations, distances, route directions and exits. Blue signs show motorist services: gas, food, lodging, hospital, rest area and camping. Brown signs mark recreational and cultural areas, parks and historic sites. A white sign with black legend in this family is usually regulatory, not guide.
Route markers and exits
Interstate shields are red, white and blue with the route number in white. Two-digit even numbers generally run east-west; odd numbers run north-south. In Florida, exit numbers generally correspond to mileposts along the route, so exit 62 is near mile 62. Mile markers increase from north to south on north-south interstates and from west to east on east-west routes in most of the state. The Florida Turnpike and toll roads use their own markers and SunPass signage.
Worked example
You are at mile marker 60 on an interstate and see a green sign reading 'Exit 62 - 2 miles.' The exit is two miles ahead and its number matches the milepost at the ramp. If a sign instead reads 'TO I-95' with an arrow, the route shown is not the road you are on; you must follow the arrow to reach it. The test often reverses this: it gives the mile marker and asks which exit number to expect.
Traps that cost marks
Do not look for fuel or lodging on a green guide sign; those are blue service signs. Do not assume exit numbers are sequential; they follow mileposts. 'TO' means a connection, not that you are already on that route. A brown sign does not indicate a hospital. Read the whole panel, because a destination and an arrow can point in different directions.