The Ambulance Highway Code and Road Signs Test

Do Ambulance Services Really Test the Highway Code?

Some do, and many more expect you to know it. Examples from published sources, as of October 2026:

• Northern Ireland Ambulance Service: after the driving assessment, Highway Code knowledge "will be tested at the end of the drive, to include verbal questions from within the Highway Code and recognition of road signs". The same wording appears in its EMT booklet. NIAS's ACA training also includes theory exams covering road-sign recognition.
• East Midlands Ambulance Service: its Patient Care Assistant page asks for "a good understanding of the Highway Code and the ability to use maps".

Other services may use an online Highway Code assessment, questions at interview, or nothing formal at all. Formats change between rounds, so check your invitation. Even where there is no formal test, the driving assessment and your training course will expect solid knowledge.

What Formats to Expect

• Spoken questions after a drive, as NIAS describes. You answer out loud, without options to choose from, so you need to recall rules rather than just recognise them.
• Road-sign recognition: shown a sign, say what it means.
• Online or written multiple choice, similar in style to the car theory test.

Because spoken questions give you no options, practise saying answers in your own words, not just picking the right letter.

What to Revise

Work from the official Highway Code on GOV.UK, which is free. For ambulance roles, focus on:

• Speed limits for different vehicle types (rule 124), not just cars.
• Stopping distances and gaps (rule 126).
• Junctions, roundabouts and box junctions (rules 170 to 190).
• Road users requiring extra care (rules 204 to 225), including how drivers should react to emergency vehicles (rule 219).
• Traffic signs and road markings, especially sign shapes and colours.
• Motorways (rules 253 to 273), if your area has them.

Five Sample Questions

These are our own questions, checked against the Highway Code on GOV.UK in October 2026. Try to answer out loud before reading the answer.

1. What does a sign in a red circle usually tell you?

Answer: It is usually a prohibition: something you must not do. The Highway Code's traffic signs section says "Signs with red circles are mostly prohibitive." It also notes that blue circles with no red border mostly give positive instructions, warning signs are mostly triangular, and direction signs are mostly rectangular.

2. What is the national speed limit on a single carriageway for a goods vehicle of up to 7.5 tonnes maximum laden weight?

Answer: 50mph. The rule 124 table gives goods vehicles not exceeding 7.5 tonnes 30mph in built-up areas (20mph in built-up areas in Wales), 50mph on single carriageways, 60mph on dual carriageways and 70mph on motorways (60mph if articulated or towing a trailer). For comparison, cars are 60mph on single carriageways. Which limits apply to a particular ambulance depends on how it is classed, which your service will cover in training; the point here is to show you know vehicle limits differ.

3. What gap should you leave behind the vehicle in front on a high-speed road, and how does rain change it?

Answer: At least a two-second gap; it "should be at least doubled on wet roads and up to ten times greater on icy roads" (rule 126). Rule 126 also says large vehicles need a greater distance to stop, and that a large vehicle in a tunnel should leave a four-second gap.

4. When may you enter a yellow box junction if your exit is not clear?

Answer: Only when you want to turn right and are stopped from doing so by oncoming traffic, or by other vehicles waiting to turn right. Otherwise you must not enter until your exit road or lane is clear. At signalled roundabouts you must not enter unless you can cross it completely without stopping (rule 174).

5. An emergency vehicle with blue lights and siren is coming up behind you. What should you do?

Answer: Do not panic. Consider its route and take appropriate action to let it pass, "while complying with all traffic signs". If necessary, pull to the side and stop, but avoid stopping before the brow of a hill, a bend or a narrow section. Do not endanger anyone, avoid mounting the kerb, and do not brake harshly on approach to a junction or roundabout (rule 219).

That last one is worth knowing well. As an ambulance crew member you will see it from the other side, and it shows an assessor you understand how other drivers are told to react.

More Rules Worth Knowing

Spoken questions can come from anywhere in the Highway Code. A few areas that are easy to half-remember:

• Double white lines with the solid line nearest you: you must not cross or straddle them except in the specific cases in rule 129, such as entering a side road or premises, or passing a stationary vehicle or a cyclist, horse or road maintenance vehicle travelling at 10mph or less, when it is safe.
• Hatched areas and chevrons: rule 130 says that if the area is bordered by a broken white line, you should not enter unless necessary and safe; if bordered by solid white lines you must not enter except in an emergency.
• Amber traffic light: rule 175 says you may go on only if you have already crossed the stop line or are so close that stopping might cause a collision.
• Roundabouts: rule 185 says to give priority to traffic approaching from your right, unless signs, road markings or traffic lights direct otherwise.
• Flashing headlights: the Highway Code says to flash your headlights only to let other road users know you are there, and never to assume that another driver flashing their lights is inviting you to go.
• Street lights and speed: rule 124 says a 30mph limit (20mph in Wales) generally applies to roads with street lights, excluding motorways, unless signs show otherwise.

If the Questions Are Spoken

Answering out loud to an assessor is different from clicking an option on a screen. Keep answers short and specific: state the rule, then add the key condition. For example, "You must not enter a box junction until your exit is clear, unless you are turning right and only oncoming traffic is stopping you." If you are unsure, say what you do know rather than guessing wildly.

How to Revise Efficiently

• Little and often: 15 minutes a day beats a three-hour cram.
• Test yourself out loud, especially if your service asks spoken questions.
• Learn sign families by shape and colour first, then the individual signs.
• Read the rule, not just the answer. Knowing why a rule exists makes it easier to recall under pressure.
• Use the current version. The Highway Code is updated from time to time; GOV.UK shows the latest rules and a list of updates.

Practise With Ambulance-Focused Questions

Ambulance Crew Prep includes a Highway Code and road-sign quiz of around 240 questions, all written from the official Highway Code, with the rule explained after each answer. It also has map-reading exercises, an ambulance situational judgement test and a guide to each service's process. Try the free Highway Code demo to see how it works.

999ready is independent and not affiliated with the NHS, DVSA or any ambulance service. Highway Code content checked on GOV.UK in October 2026; always use the current official version and check your own candidate pack.