Chapter 1 · Lesson 2

Defensive driving and what takes precedence

After this lesson, you can

  • explain defensive driving as leaving margin for other people’s mistakes
  • keep a usable gap, and keep your foot ready on the brake where children, buses or a hedge hide the view
  • apply the precedence order when an officer, lights, signs and ordinary rules disagree
  • treat a dark or flashing-amber signal as a fall-back to signs and rules, never as green

1. Leave a margin, then claim your rights

Defensive driving is a habit, not a separate set of signs. Leave room for what you cannot see yet. The gap ahead is your only spare second. Keep your foot ready on the brake when a ball rolls toward the street, when a bus stands at a stop, or when a hedge blocks your view. Assume the other person may not do the right thing.

Dry road · count time, not metresPostYouVehicle aheadCount 3 secondsWhen they pass the post, count steadily to three. If you reach it first, you are too close.Rain or ice: count longer.
When the car ahead passes the post, count three seconds. If you reach the post first, you are too close.

The same habit includes making sure you have been seen. At a junction or a crossing, look at the other driver or pedestrian until you know they have noticed you. A green light or a B4 priority-road diamond does not replace that look.

2. When instructions disagree

One junction can show four things at once: a police officer or authorised guard waving, a red light, a B1 give-way triangle, and priority-to-the-right underneath. They are ranked. The higher one wins. The lower ones wait.

  1. A police officer or authorised guard — hand signals beat everything else.
  2. Traffic lights and lane signals that show a fixed light.
  3. Road signs and road markings — stop line, give-way teeth, arrows.
  4. General rules — priority-to-the-right, the turning rule, the obstruction rule.
Same junction · four instructions · only the top one countsYouOfficer: goRedGive wayAFrom your rightRank1OfficerWins here2LightsRed — wait3B1 signWait4Right ruleWait✓ Follow the officer — go through slowly✕ Wait for green, or yield to AIf the officer leaves and the lights flash amber or go dark, drop to the B1 sign,then to ordinary rules. Dark is never green.
An officer is sending you through while the light is red. Follow the officer. The light, the B1 sign and the right-hand rule wait until the officer stops directing.
A22 warns that signals are coming — do not speed up to beat amber. A green light beats B1 and B2 at the same junction. A dark or flashing-amber signal hands the junction back to those signs.
SignalWhat it means
GreenYou may go if the way is clear. Care still applies. Do not enter if you will block the junction.
AmberStop if you can do it safely. Amber is not “hurry through.”
RedStop before the line. Creeping over because nothing is coming is still a red-light offence.
Flashing amberThe signal has stepped aside. Follow signs and ordinary rules, with extra care — not extra speed.
Dark / unlitSame as flashing amber. Never treat dark as green.
What the light is doing, and what you do.

Two cases come up constantly. Flashing amber means proceed by signs and rules. Creeping over the stop line on red because nothing is coming is still a red-light offence.

Example

A guard waves you through red

Roadworks. The light facing you is red. A guard in a yellow vest waves traffic through. The car next to you stays put.

Answer: Drive through slowly, following the wave.

The guard’s signal is at the top of the order and beats the red light. Staying put on red here is the mistake. A person directing traffic outranks lights and signs.

The light is dark, there is no police officer, and B1 stands on your approach. Who decides?

Pick one answer to see why.

What you seeWho wins
Officer or authorised guardTheir signal — even through red
Fixed red / amber / greenThe light, then care
Dark or flashing amberSigns, then ordinary rules
B1, B2, B4, or road markingsThe sign or the paint
Nothing postedPriority-to-the-right, turning, obstruction
When two instructions disagree, start at the top.

3. Common mistakes

  • I had green, so the crash is their fault.Green decides who goes first, not who drove well. The duty of care still applies on green.
  • Flashing amber means hurry before red.It means the signal has stepped aside. Signs and rules apply, with extra caution.
  • A police wave is advice; the light is the law.The opposite. The officer’s signal beats lights, signs and ordinary rules.
  • A big gap invites queue-jumpers, so keep it tight.A tight gap is what causes the crash. Two to three seconds, more in rain.

Official source: Transportstyrelsen — Generella trafikregler

Official source: Trafikförordningen (1998:1276) 2 kap. 1–3 §§

Sign artwork: public domain (Transportstyrelsen). Lesson text is a MinKörkort study draft — not the official legal wording.