Michigan Road Signs Cheat Sheet.
The night-before summary, built like the exam.

The numbers to remember

• Michigan requires passing two separate checks: a written knowledge test and a road sign test — signs are their own graded section, not a subsection buried inside the written test.
• The Michigan Department of State does not publish a fixed question count or numeric passing score for either test — ignore any specific figure you see quoted elsewhere as if it were official.
• Since there's no published cutoff, the only safe target is near-complete mastery across every sign category, not a minimum percentage on an average.
• Both the written knowledge test and the road sign test must be passed to move forward in Michigan's licensing process — passing one does not exempt you from the other.

Sign shapes at a glance

• Red octagon = stop (the only sign with this shape, recognizable even if damaged).
• Red/white downward triangle = yield.
• Yellow diamond = general warning (curves, crossings, merges); orange diamond = construction/work-zone warning.
• Pentagon = school zone or school crossing.
• Circle = railroad crossing ahead.
• White rectangle, black text = regulatory (speed limits, turns, one-way).
• Green rectangle = guide/directions; blue = services; brown = recreation and parks.

Right-of-way in one breath

• No signs at an intersection: the driver on the right generally goes first.
• Four-way stop: first to arrive goes first; simultaneous arrivals, driver on the right proceeds while the other waits.
• Yield = slow or stop for crossing/merging traffic, not automatic passage.
• Pedestrians in marked or unmarked crosswalks outrank turning vehicles.
• Emergency vehicles with lights/siren active always go first — pull right and stop.
• Right-of-way is granted moment to moment, not owned outright — it can be forfeited by unsafe driving even when a sign technically favors you.

Top traps

• Treating the posted speed limit as automatically safe in rain, snow, fog, or on gravel — the posted number assumes ideal conditions only.
• Confusing yellow advisory speed plaques (recommendations for curves/ramps) with legal limits — they aren't the same thing, though ignoring them is a common crash cause.
• Assuming a yield sign means you always go — it means yield if needed, not proceed regardless of crossing traffic.
• Forgetting that fatigue and mild impairment reduce reaction time and judgment before a driver subjectively feels affected.
• Skipping picture-based drilling — the real test shows you the sign image, not its name, so memorize by shape and color family first, then meaning.
• Assuming a published passing score exists for Michigan's written or sign test — it does not, so aim for consistency across every category instead of chasing a single target number.