KEEP RIGHT A PSA FOR THE PASSING LANE

A public service announcement

The left lane isn’t a place. It’s a maneuver.

Sixty seconds on the one rule that makes every highway work — and the two drivers who break it without meaning to.

Mile 01 · The maneuver

Borrow it. Use it.
Give it back.

A highway is a sorting machine. The right lanes are for traveling. The left lane exists for exactly one thing — the length of a pass. You signal, you overtake, you return. The lane was never yours.

Mile 01 · The entire transaction

PASSING TRAVELING 01 · SIGNAL 02 · PASS 03 · RETURN
FIG. 1 — TEN SECONDS, START TO FINISH. THEN THE LANE IS SOMEBODY ELSE’S.

Mile 02 · To the driver who never thinks about lanes

You’re not rude.
You’re parked in a maneuver.

Nobody taught you this, and cruise control makes every lane feel like open road. But from behind, an occupied passing lane rewrites the whole highway — and drivers start going around you on the right — the side where your mirrors are weakest.

Mile 02 · What forms behind you

THE WAVE KEEPS ROLLING AFTER YOU’RE GONE
FIG. 2 — ONE STEADY CAR. THREE STACKED STRANGERS. ONE RISKY PASS ON THE RIGHT.

Mile 02 · The physics

Traffic physics has a name for what happens next: a phantom jam. One slow car sets off a chain of brake lights that rolls backward for miles — and keeps rolling long after that car is gone. By the time the jam exists, you’re miles ahead.
You never see what you built.

LIGHTHILL · WHITHAM · RICHARDS — TRAFFIC-WAVE MODEL, 1955

Mile 03 · To the driver teaching speeders a lesson

You’re doing the limit.
He isn’t. Hold your ground?

Three reasons to let him go — the law, the outcome, and the job description.

Mile 03 · Reason 01

The law isn’t on your side.

“…any vehicle proceeding at less than the normal speed of traffic … shall be driven in the right-hand lane.”UNIFORM VEHICLE CODE — ADOPTED IN SOME FORM BY EVERY STATE

Normal speed of traffic — not the speed limit. California spells it out: keep right applies “notwithstanding the prima facie speed limits.” Doing 65 in a 65 doesn’t make the lane yours.

Mile 03 · Reason 02

The lesson never lands.

Blocking a speeder doesn’t slow him down. It reroutes him — into the right lane, past the school-run minivan, through your blind spot at a worse angle. You don’t reduce the speeding. You relocate it, to people who didn’t volunteer.

Mile 03 · Reason 03

It was never your job.

Enforcement comes with a radar gun, a badge, and a pension. If he’s truly dangerous, the left lane isn’t your tool — it’s his exit from your life. Yield, and he’s a problem for the people paid to handle him.

Mile 03 · The arena you’re stepping into

51%

OF US DRIVERS ADMIT TAILGATING ON PURPOSE — 104 MILLION PEOPLE

24%

ADMIT DELIBERATELY BLOCKING ANOTHER CAR FROM CHANGING LANES

8M

ESCALATED TO CONFRONTATION, RAMMING, OR WORSE IN ONE YEAR

AAA FOUNDATION FOR TRAFFIC SAFETY, 2016 — AGGRESSIVE DRIVING GENERALLY, NOT ONLY LEFT-LANE INCIDENTS

All to make a point about etiquette.
Nobody has to be the spark.

Mile 04 · The stakes

11,288

PEOPLE KILLED IN SPEED-RELATED CRASHES IN 2024 — 29% OF ALL US ROAD DEATHS · IIHS

Crashes happen where cars travel at different speeds — not just where they travel fast. A blocked passing lane forces braking, weaving, and passing on the right, in the fastest lane on the road. Keeping right doesn’t just move traffic along.
It removes collisions before they’re possible.

EACH MARK — TEN PEOPLE. ONE YEAR ON AMERICAN ROADS.

Mile 05 · The law, everywhere

All fifty states.
One direction.

Every US state carries a keep-right law in some form. Some of them name it. In six states, every lane except the right lane is a passing lane. This was never a preference. It’s the operating manual.

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Mile 05 · As posted

SLOWER TRAFFIC
KEEP RIGHT

UNIFORM VEHICLE CODE · MOST STATES

KEEP RIGHT
EXCEPT TO PASS

“LEFT LANE LAW” · COLORADO

YIELD LEFT LANE
TO FASTER TRAFFIC

“SLOWPOKE LAW” · GEORGIA, 2014

LEFT LANES
FOR PASSING ONLY

ME · MA · MO · MT · NJ · WA

Final mile · The code

Four rules.
Zero exceptions.

  1. 01

    Pass with purpose. Then move right.

  2. 02

    Faster traffic behind you? Yield — even at the limit.

  3. 03

    Don’t cruise beside another car. Finish the pass.

  4. 04

    Stuck behind a camper? Distance. Patience. One clean pass. No lessons.

Pass left. Drive right.

One lane of courtesy, returned a million times a day, is the cheapest safety feature ever built.

SHARE
KEEP RIGHT sticker: a green highway-sign design with a QR code linking to keeprightpsa.org, labeled “Pass left. Drive right. Scan for the 60-second read — no ads, no signup, not a prank.”

After the pledge · Spread it

Put it where
drivers look.

Print it, sticker it, bumper it. The sticker names its destination in plain text — no ads, no signup, not a prank — so nobody has to gamble on a mystery square.

2400 × 2400 PX — PRINTS SHARP TO 8″ / 20 CM. ERROR CORRECTION H: SCANS EVEN SCUFFED.