πŸ‡ΊπŸ‡Έ Road Traffic in the United States

US Regulatory Signs

STOP – R1-1

STOP

Come to a complete stop.

YIELD – R1-2

YIELD

Yield the right of way.

SPEED LIMIT – R2-1

SPEED LIMIT

Maximum speed in miles per hour.

NO LEFT TURN – R3-2

NO LEFT TURN

No left turn.

NO U TURN – R3-4

NO U TURN

No U-turn.

DO NOT PASS – R4-1

DO NOT PASS

No passing.

PASS WITH CARE – R4-2

PASS WITH CARE

The no-passing zone ends; pass only with care.

DO NOT ENTER – R5-1

DO NOT ENTER

Do not enter.

WRONG WAY – R5-1a

WRONG WAY

Wrong direction.

ONE WAY – R6-1R

ONE WAY

One-way street to the right.

NO PARKING – R7-1

NO PARKING

No parking; observe posted times.

NO PARKING SYMBOL – R8-3

NO PARKING SYMBOL

No parking.

US Warning Signs

Right Curve – W1-1R

Right Curve

Sharp right curve.

Winding Road – W1-4R

Winding Road

Several curves follow.

Intersection – W2-1

Intersection

Intersection ahead.

STOP ahead – W3-1

STOP ahead

Stop sign ahead.

Signal ahead – W3-3

Signal ahead

Traffic lights ahead.

Bump – W8-1

Bump

Bump ahead.

Slippery when wet – W8-5

Slippery when wet

Slippery when wet.

Pedestrian Crossing – W11-2

Pedestrian Crossing

Pedestrians may cross.

School – S1-1

School

School or school crossing.

Road Work – W20-1

Road Work

Road work ahead.

Railroad Crossing – W10-1

Railroad Crossing

Railroad crossing ahead.

Railroad Crossbuck – R15-1

Railroad Crossbuck

Railroad crossbuck at the crossing.

Route and Interstate Signs

Interstate Highway – M1-1

Interstate Highway

Sign for an Interstate Highway; this example shows Interstate 5.

U.S. Route Shield – M1-4

U.S. Route Shield

Number of a U.S. Highway route.

State Route Shield

State Route Shield

Example of a state route.

TO – M4-5

M4-5

Shows the way to a route.

Advance Turn Arrow – M5-1

Advance Turn Arrow

Direction to a route.

Destination – D1-1

Destination

Destination and distance information.

Road Markings in the United States

Yellow normally separates opposing traffic; white separates lanes moving in the same direction.

Single Broken Yellow Center Line

Separates opposing traffic. Passing may be allowed when visibility and rules permit.

Double Solid Yellow Line

Separates opposing directions; do not cross to pass.

Solid Yellow Plus Broken Yellow

Only traffic on the broken-line side may cross to pass when it is safe.

Broken White Lane Line

Separates lanes moving in the same direction; lane changes are permitted.

Solid White Lane Line

Lane changes are discouraged or restricted; the precise meaning depends on where the line is used.

Edge Lines

yellow on the leftwhite on the right

On divided roadways, yellow often marks the left edge and white the right edge.

Shared Center Left-Turn Lane

A two-way left-turn lane is used by traffic from both directions only for left turns.

The center lane is not a normal travel lane or a passing lane. A vehicle may enter it only briefly to prepare for a left turn.

Colored Curbs

These color meanings are especially common in California; other states or cities may use different rules.

Red: No stopping, standing, or parking.

Yellow: Loading zone, often with a time limit.

White: Brief passenger loading or unloading.

Green: Short-term parking; observe the time limit.

Blue: Accessible parking with the required permit.

Click the button to highlight the matching curb card.

Review

Yellow usually separates opposing traffic. White usually separates lanes moving in the same direction. The shared center lane is only for left turns.