Guide and Informational Signs
Guide signs tell you where you are and how to get where you are going; informational signs tell you what services are nearby. They are not enforceable commands, but the Hawaii exam still tests them because misreading an exit panel or a lane-assignment arrow causes real crashes. Items ask you to decode sign color, read an exit number, and choose the right lane from an overhead sign.
The color code
- Green: destinations, route guidance, distances, exit information, and overhead lane assignment.
- Blue: motorist services - gas, food, lodging, rest areas, and hospitals (a white H on blue).
- Brown: recreation and cultural interest - beach parks, trails, historic sites, scenic overlooks. Hawaii has an unusually large share of these.
- White with black text: often regulatory, so check the shape and wording before assuming a white sign is only information.
- The red, white, and blue interstate shield marks H-1, H-2, and H-3, Hawaii's Interstate routes.
Reading exits and lanes
An exit number appears in a small tab at the corner of the sign and is keyed to mileposts, not to a count of exits. A panel reading “EXIT ONLY” means that lane must leave the route. On an overhead sign, arrows pointing straight down assign lanes: a downward arrow above your lane tells you exactly where that lane goes. A yellow panel marked “EXIT ONLY” on a green sign is a lane-drop warning, so change lanes before you reach the gore area.
Worked example
An overhead sign spans three lanes. The left arrow is labeled for H-1 west, the center arrow carries an EXIT ONLY panel for the airport, and the right arrow reads H-1 east. You want H-1 west. Reasoning: your lane assignment, not your destination, decides what happens next. The center lane will be forced off at the exit, so you must move left before the solid line and the gore area begin - after that point, crossing is illegal.
Traps that cost marks
- Reading brown recreation signs as if they marked services such as fuel or lodging.
- Confusing an exit number with a milepost or with the distance to the exit.
- Noticing the destination on an overhead sign but missing the EXIT ONLY panel beneath it.
- Treating a guide sign as a legal command; it directs, it does not regulate.
- Missing that a blue hospital sign points to emergency care while a brown sign may point to a clinic or a historic site.