Advanced Driving Series

Drive with precision and
purpose.

This goes beyond passing the test. Learn the techniques used by police, IAM and RoSPA advanced drivers. Based on Roadcraft: The Police Driver's Handbook, 2025 Edition.

📖 Source: Roadcraft 2025, The Police Driver's Handbook
3Interactive modules
26+Slides / sections
A4Print-ready PDFs

Advanced Driving Series

Five modules you can open, print or save

Each module is a full guide you can read on screen, print to paper, or save as a PDF using your browser's print function.

Module 1 · 14 slides
The IPSGA
System

The System of Car Control. It's a methodical way to negotiate any hazard safely and smoothly, the same way every time. Used by police and advanced drivers worldwide.

I
P
S
G
A
What is the System? Information & TUG Why use a system? I · P · S · G · A deep dives Applied: left turn Applied: roundabout Brake / Gear overlap Quick reference card

IPSGA stands for Information, Position, Speed, Gear, Acceleration. Instead of just reacting to hazards, advanced drivers work through this sequence consciously and consistently, adapting it to every junction, bend and roundabout they meet.

Includes real-world applied examples (left turn, roundabout) and a printable quick reference card based directly on Roadcraft Chapter 3.

Module 2 · 12 slides
Commentary
Driving

How narrating what you see sharpens your observation and anticipation, and makes you a safer, more aware driver on every journey.

See
Name
What if?
Plan
What is Commentary Driving? How the brain processes info What is a hazard? Observation Anticipation 3 stages of planning Observation links Perception errors How to practise Commentary + IPSGA

Commentary driving means narrating everything you observe and what you plan to do about it, either aloud or in your head. It's the fastest way to find gaps in your own observation and close them.

Covers perception errors (looking but not seeing, expectancy bias, attention tunnelling), observation links, the "What if…?" technique, and how commentary integrates directly with each phase of IPSGA.

Module 3 · 8 sections
The Physics of
Braking & Cornering

Why speed must be managed before the bend, and what happens when it isn't. Tyre grip, weight transfer, understeer and oversteer explained clearly.

Grip
Weight
Understeer
Oversteer
Why brake on the straight Tyre grip trade-off Weight transfer Contact patch FWD vs RWD Understeer & oversteer Key scenarios Roadcraft in practice

Tyre grip is a fixed budget, shared between braking, steering and acceleration. This module explains the physics behind that trade-off, how weight shifts under braking and cornering, why FWD and RWD vehicles fail differently, and how to spot and correct understeer and oversteer.

Verified against Roadcraft 2025, RSA Rules of the Road and the UK Highway Code. Includes the IPSGA system applied to a bend in full.

Module 4 · Research review
The Two-Second
Rule

Is the gap we all teach actually safe, or just the bare minimum dressed up as a target? A research-led verdict on safe following distance.

Headway
Reaction
Stopping
MIT data
Safe headway Reaction time Stopping distance Wet & ice ×2–5 MIT human factors TII 0.9s data 3-second rule Pros & cons

The average gap on Irish motorways is under 0.9 seconds, less than half the rule. Two seconds covers roughly your reaction time and almost nothing else. It's an absolute minimum, not a safe target.

Built from the RSA Rules of the Road, Roadcraft 2025 and MIT human-factors research. Covers where the rule comes from, when it holds, when it fails, the pros and cons, and what you should actually drive.

Module 5 · 8 sections
Driver's Signals

Signals are for communicating with other road users, not for going through the motions. Here's how to use every one at your disposal to say what you're about to do, instead of signalling out of habit.

Indicators
Brake lights
Horn
Arm signals
The real purpose of signals Full range of signals Indicators Brake lights Headlight flashing The horn Hazard warning lights Arm signals

A signal is a message, not a ritual. Used well, signals tell other road users what you intend to do in time for them to react. Used out of habit, whether that's too late, too early or left on, they mislead more than they help.

Covers the real purpose of signalling, the full range available to you, and the correct use of indicators, brake lights, headlight flashing, the horn, hazard warning lights and arm signals, plus the common mistakes for each.

Module 1 overview

The five phases of IPSGA

Every hazard, whether a junction, bend, roundabout or pedestrian crossing, is approached using this sequence. With practice it becomes automatic.

I

Information

Take, Use and Give: the TUG principle. Runs through every phase. Mirrors, scanning, signals.

P

Position

Get into the correct position to see and be seen. Nearside, central or offside, with safety first always.

S

Speed

Adjust speed using accelerator or brake. All braking before bends. Acceleration sense reduces wear.

G

Gear

Select the correct gear for that speed after braking. Brakes are to slow, gears are to go.

A

Acceleration

Final check: confirm it's safe, then accelerate smoothly and progressively away from the hazard.

Module 2 overview

The four steps of Commentary Driving

Apply this structure to every hazard you encounter. Miss any step and you have found a gap to work on.

1

See it

Actively scan the environment: far distance, middle, foreground, sides, mirrors. Name what you observe out loud.

2

Identify it

Is it a physical feature, another road user, or a weather/surface condition? Immediate danger or potential hazard?

3

Question it

"What if…?" Verbalise the worst credible outcome. What could this hazard do? What might other road users do next?

4

Plan it

State your intended response. "Checking mirrors… reducing speed… holding position until I can see into the junction."

Deep Read · Driver Psychology & Safety

The science behind vehicle feedback

Why modern cars are getting quieter, and what 15 years of peer-reviewed research says that means for driver awareness and road safety.

Deep Read · 18 min

The Invisible Conversation:
How Your Car Talks to You

Modern vehicles are engineered to be quieter and smoother than ever, with more automation too. But research suggests that in silencing the car, we may be silencing a safety-critical dialogue between driver and road.

The Airbus Effect Steering feel & tyre grip Situation Awareness (SA) Cars vs. Motorcycles Advanced driver research ADI teaching takeaways

Based on Vehicle Feedback and Driver Situation Awareness by Walker, Stanton & Salmon (CRC Press, 2018). It draws on 15 years of funded research with Jaguar, Ford, the UK EPSRC and the Institute of Advanced Motorists.

Ready to take your driving further?

Book a lesson with one of our instructors to practise IPSGA and commentary driving on real roads.