Driving Speed Limits

Increased speed increases the risk of crashing and the severity of the crash. Many fatal crashes and single vehicle crashes, e.g. running off the road, are in some way caused by speed.

Knowing your road speed limit helps you to become a better driver and forms a key part of driving safely.

In this lesson we will go through the national speed limits, different driving speed limits & important rules.

What is a speed limit?

50 mph speed limit sign. 50 mph speed limit sign

The driving speed limit is the maximum speed a driver is allowed to drive at, it does not however mean that it is always safe to drive at the speed limit, irrespective of conditions. Driving at speeds too fast for the road and traffic conditions is dangerous.

It is advisable to stick to lower speeds when you are driving off-road or on uneven surfaces.

A car on off-road surface Reduce your speed on e.g. dirt roads

When to Reduce Your Speed

As a driver, you must always determine if you are driving at a safe speed. There are 4 general times when you should always reduce your speed:

When the road layout or condition presents hazards, such as bends
When sharing the road with pedestrians, cyclists and horse riders, particularly children, and motorcyclists
When weather conditions make it safer to do so
When driving at night as it is more difficult to see other road users

What Are the National Speed Limits?

The national speed limit on roads in built-up areas is 30 mph. This speed limit also applies to all roads with street lighting, unless signs show otherwise.

The national speed limit on roads outside of built-up areas depend on what kind of road it is, different speed limits apply for single carriageway and dual carriageway or motorways.

The national speed limits are as follows:

In built-up areas: 30 mph
On single carriageway: 60 mph
On dual carriageway or motorway: 70 mph

National Speed Limit Applies Road Sign This sign indicates that the national speed limit applies

Other Speed Limits & Rules

School Speed Limits

Children are unpredictable, may be unaware of road rules and often fail to recognize dangerous situations on the road. Therefore, many local authorities have imposed lower speed limits (often 20 mph) near schools to better protect children from fast travelling vehicles.

Advisory Speed Limits

30 MPH Advisory Speed Limit Road Sign This sign indicates an advisory speed limit of 30 mph

An advisory speed limit will tell you the maximum speed that is safe to drive in good conditions. You are recommended to reduce your speed temporarily and display caution to get past safely. These speed limits are generally placed before bends, curves and crests.

Minimum Speed Limits

This sign indicates a minimum speed limit of 30 mph

You must not obstruct vehicles behind you by driving unreasonably slow (e.g. 10 mph on a 60 mph road) unless conditions require you to. On rare occasions, there are even signed minimum speed limits - these signs use the same layout as maximum speed limit signs, but have a blue background.

Variable Message Signs

Variable message sign display Variable message sign indicating a lane closure

These are electronic signs that are placed overhead of, or next to, some roads, and provide early warnings and messages in order to create a safe and efficient traffic flow. They alert road users to changes in traffic conditions e.g. crashes, road works, congestion and road closures.

Shared spaces

Shared spaces are meant to protect pedestrians by encouraging lower speeds and removing any implied priority for drivers on the road i.e. drivers should be prepared to give way to pedestrians within the shared space.

Driving shared spaces allows motor vehicles and pedestrians to easily flow with less restrictions using features like kerbs, road surface markings and less traffic signs.

Road to Your Licence - Driving Theory

Priority at Unmarked Crossroads & Junctions

Direction Signals & Arm Signals

Roundabouts & Mini Roundabouts

Road Lane Markings & Reflective Studs

Road Positioning

Road Safety, Stopping Distances & Safety Margin

Driving Around Large & Heavy Goods Vehicles

Pedestrian Rules: How to Act Near Pedestrians

Sharing the Road with Others

Designated Lanes: Bus, Crawler, Climbing & HOV lanes

Turning Rules, U-turns & 3-point Turns

Traffic Lights

Parking Restrictions

Essential Parking & Stopping Signs

Defensive Driving Essentials

Alcohol and Drink Drive Limits

Fatigue

Fitness to Drive

Drug Driving

Getting Your Provisional Licence

Essential Documents

Distracted Driving & Road Rage

Motorways

Use of Car Lights

Overtaking Safely & Rules

Driving in Tunnels

Don't Speed - Drive Responsibly

Level Crossings

Driving in Bad Weather

Dealing with Hazards

Roadwork Sites & Rules

Driving Emergencies and Vehicle Breakdowns

What To Do In A Crash & First Aid (DR ABC)

Driving a Roadworthy Vehicle

Seat Belt Law & Child Car Seats

Towing Tips & Laws

Eco Safe Driving

Driving Offences, Penalties & Penalty Points

Speed Limits

Chapter 6

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