Road Signs hard mode is for the traffic-safety completist who spots the difference between a merge taper and a lane drop at a glance. Every prompt hides the MUTCD code and shows only the plate, forcing you to notice arrow direction, line weight, and small suffixes that change the meaning. It is a practical drill if you drive often, study for exams, or design transportation signage. Because the quiz runs locally, your picks stay on your device; replay as needed to lock in muscle memory. If you miss one, think about why: was the diagonal arrow showing a lane reduction, or did a chevron signal a sharper hazard than you assumed? Those reflections make you faster at interpreting signs on the road, not just better at trivia. Try a run in bright light and another in dark mode to see how contrast affects readability. If you host the assets remotely later, keep crisp PNGs for older displays. Treat this as a compact refresher before a road trip or a short-session study guide that turns obscure shapes into instant recognition.
