Warning signs
The divided road ends ahead; two-way traffic will share one roadway.
Move back toward the centre carefully, since oncoming traffic will be sharing your roadway again.
The shape is almost always a yellow diamond with a black border and a black symbol or arrow. The one exception in this set is the railway advance sign, which is a yellow circle with a black X, kept round on purpose so it stands out from the diamonds around it well before you reach the tracks.
A warning sign tells you about a hazard or an unusual condition ahead so you can adjust your speed and attention before you reach it. It is advice rather than a command with its own penalty, though ignoring it can put you in a position where another rule then applies.
14 questions in our banks show this sign and ask what it requires. Here are 6, each with the answer marked and the authority it rests on.
This sign appears ahead of you on a divided road. What is about to change?
The median ends and you will share one roadway with oncoming traffic
This is the point where head-on conflict comes back to your road, and drivers who miss it carry on using the left lane as though it were still theirs. Move right, expect headlights, and start treating the centre line as a real boundary again.
Highway Traffic Act (Ontario)This sign appears while you are driving on a divided highway. What does it mean?
The median ends, and you will share one roadway with oncoming traffic
Past this point the barrier between the two directions disappears and traffic comes toward you on the same surface. Move right, bring your speed down and treat the road as two way again, because the habits that are safe on a divided highway are dangerous here.
Motor Vehicle Act (British Columbia)This sign appears while you are driving on a divided highway. What changes ahead?
The two directions come back onto one roadway and you will meet oncoming traffic
You have been driving with nothing coming the other way, and that ends here. The habits built up over the divided stretch, sitting near the left line and pulling out freely, become dangerous the moment the median runs out. Move right and reset what you expect before you reach the point where it changes.
Alberta Driver's Guide (Government of Alberta)This sign faces you on a highway you have been driving for some distance. What changes just ahead?
The median ends, and you will meet traffic coming the other way on the same roadway
Up to this point the two directions have been kept apart, and past it they share one roadway. The lane to your left stops being a passing lane and becomes the lane oncoming traffic is using. Drivers who miss this sign are the ones found in the wrong lane at the transition.
Highway Safety Code (Quebec)You have passed this sign and you are still in the left lane. Why does that matter now?
The left lane is about to carry traffic coming toward you
When the median stops, the two roadways fold back into one and the space you are using becomes the oncoming side. Moving right well before the divider runs out is the whole reason you were told in advance.
Highway Traffic Act (Ontario)You have been driving on a divided highway for an hour when this sign appears. Which of your current habits becomes the dangerous one?
Moving into the left hand lane to get past slower traffic
On a divided highway the left lane carries traffic going your way, so pulling into it is ordinary driving. Once the division ends, that same space carries vehicles coming straight at you, and the sign exists to break the habit before it causes a head on collision.
Motor Vehicle Act (British Columbia)The other 8 sit in the signs drills, which ask sign questions on their own with the reason for every answer.
Counted from the questions written for each province when the site is built, not typed by hand.
3 questions: 2 on the G1 knowledge test, 1 on the Class A knowledge test
4 questions: 2 on the ICBC knowledge test, 1 on the Motorcycle knowledge test, 1 on the Class 1 knowledge test
4 questions: 2 on the Class 7 knowledge test, 1 on the Class 6 knowledge test, 1 on the Commercial knowledge test
3 questions: 2 on the SAAQ knowledge test, 1 on the Class 1 knowledge test
Signs that share this one's shape and colour rule, and are easy to confuse with it under a clock.
You are entering or on a road with traffic in both directions.
People cross the road ahead; be ready to stop.
A railway crossing is ahead; slow down, look both ways and be ready to stop.
Deer or other large animals may cross here, especially at dawn and dusk.
A road crosses ahead; watch for entering traffic.
The road you are on ends ahead; you must turn left or right.
The divided road ends ahead; two-way traffic will share one roadway. Move back toward the centre carefully, since oncoming traffic will be sharing your roadway again.
It is a warning sign. A warning sign tells you about a hazard or an unusual condition ahead so you can adjust your speed and attention before you reach it. It is advice rather than a command with its own penalty, though ignoring it can put you in a position where another rule then applies.
It appears in the Ontario, British Columbia, Alberta and Quebec practice banks on this site: 3 in Ontario, 4 in British Columbia, 4 in Alberta, 3 in Quebec. Every question is original prose citing Highway Traffic Act (Ontario), Motor Vehicle Act (British Columbia), Alberta Driver's Guide (Government of Alberta) and Highway Safety Code (Quebec).
The meaning and the action are the standard ones taught across Canada. Each question above cites the law or the guide it rests on, and the exam facts on the province pages come from the records below.
Ontario Ministry of Transportation, G1 licensing rules and DriveTest fee schedule
Verified 2026-08-27
DriveTest, Commercial Vehicles licence requirements
Verified 2026-08-28
Fees read from the DriveTest fee list on the same date.
ICBC published graduated licensing and knowledge test information
Verified 2026-08-27
ICBC, Before you take your knowledge test (form MV2654)
Verified 2026-08-28
Fees read from the ICBC fee list on the same date.
Government of Alberta published Class 7 licensing and knowledge test information
Verified 2026-08-27
Government of Alberta, Get a Class 6 motorcycle driver licence
Verified 2026-08-28
Question count and pass mark read from the Alberta driver knowledge test page on the same date.
Government of Alberta, Driver knowledge test
Verified 2026-08-28
SAAQ published licensing, driving course and knowledge test information
Verified 2026-08-27
SAAQ, Heavy Vehicle Driver's Licence (Class 1)
Verified 2026-08-28
Read through an Internet Archive copy of the SAAQ page captured on 2026-08-13, because the SAAQ turns away visitors from outside Canada. The French page is cited because it is the version the SAAQ updates first.