Guide and Informational Signs: Route Markers, Destinations, Services, and Exit Signs
Guide signs tell you where you are, where a route goes, what exit to take, and what services are nearby. They are not commands; they are information. The exam tests the color system-green for destinations and exits, blue for services, brown for recreation and culture-and the route-marker shapes that identify Interstate, U.S., and Connecticut routes.
Core rules
- Green guide signs give destinations, distances, exit numbers, and directions. An advance exit sign tells you the exit is ahead; the exit-direction sign at the ramp tells you which way to turn.
- An EXIT ONLY sign over a lane means that lane must leave the highway at the next exit. If you want to continue, change lanes before the solid white line.
- Route markers: Interstate routes use the blue-and-red shield; U.S. routes use the white shield; Connecticut state routes use a white square with black legend. The shape and color tell you which system the road belongs to.
- Blue service signs show gas, food, lodging, hospital, rest area, and similar services. Brown signs show parks, historic sites, and recreation areas.
- Mile markers and exit numbers help you confirm location and direction, especially when reporting an emergency.
Worked example
You are driving in the right lane and see a green sign reading EXIT 22 - 1 MILE, followed by an EXIT ONLY panel above your lane. You want to continue on the highway. The advance sign says the exit is still a mile away, but the EXIT ONLY panel means your lane becomes the exit ramp. Move left as soon as it is safe; waiting until the solid white line may leave you trapped in the exit lane.
Traps
Do not treat a green guide sign as permission to change lanes; check mirrors and blind spots. Do not confuse blue service signs with green destination signs. Do not assume a route marker guarantees a freeway; Connecticut state routes can be ordinary two-lane roads. Do not read an exit number as a mile marker unless the sign says so. Do not ignore EXIT ONLY because the exit is still distant.