A Guide To Riding In Cycle Lanes From The Kwik Fit Experts

Cycle lanes are a familiar sight across the Highway Code, designed to make cycling safer, reduce congestion, and promote greener travel. But understanding exactly how and when to use them, and what the rules are for motorists, isn’t always as straightforward as you might think.

Whether you’re a driver navigating alongside cyclists or a cyclist yourself, it’s important to understand the information in the Highway Code around cycle lanes and other similar facilities.

In this guide, we’ll explain the key differences between lane types, clarify when vehicles can enter them, and cover what to do when parked cars block the way.

What is a cycle lane?

A cycle lane is a designated part of the road marked for cyclists. You’ll usually recognise it by a white painted line and a bicycle symbol on the carriageway. Cycle lanes provide cyclists with a safer, clearer space to travel, separated from the main flow of traffic. 

However, they remain part of the carriageway, meaning cyclists and vehicles share the road, and everyone must follow the same Highway Code principles. 

The Highway Code encourages cyclists to use them where appropriate, but makes clear that it’s a matter of personal judgment, not a legal requirement.

Understanding the different types of cycle lanes

Contrary to popular belief, not all cycle lanes are the same. The Highway Code (Rule 140) distinguishes between two main types: mandatory and advisory. Understanding how to recognise and use each one helps both cyclists and motorists share the road safely and confidently.

Mandatory cycle lanes

Marked by a solid white line, mandatory lanes are reserved exclusively for cyclists during their hours of operation. 

• They provide a protected, dedicated space that motor vehicles must not enter. 
• You’ll often see blue signage showing when the restrictions apply. 
• Only emergency vehicles or other authorised road users are exempt. 

Outside the marked hours, the lane may revert to general road use, but even then, giving cyclists space and priority is still best practice.

Advisory cycle lanes

Advisory lanes are outlined by a broken white line, meaning they’re not legally enforced in the same way. 

• They’re common on narrower roads, offering a visual guide to show where cyclists are likely to be. 
• Drivers can cross into them when necessary, such as to overtake a large vehicle or avoid debris, but they should always check for cyclists first. 
• Cyclists should also stay alert in these areas, as vehicles may occasionally enter the lane. 

In short, mandatory lanes create separation, while advisory lanes create awareness. Both play a vital role in improving road safety and reducing conflict between road users.

Can you park in a cycle lane?

Parking in or near a cycle lane can cause confusion and frustration for many drivers and cyclists. As we discussed in the section above, there are two different lane types, and the rules depend on the type - and whether time restrictions apply.

Mandatory lanes: No

If a cycle lane is marked by a solid white line, you must not park, stop, or drive in it during its operating hours. Doing so could result in a fine, and more importantly, it endangers cyclists by forcing them into faster-moving traffic. 

Keep an eye out for blue road signs indicating when the restrictions are in force. Some operate 24/7, while others only apply during peak times. Even outside operating hours, it’s courteous (and safer) to avoid parking there altogether.

Advisory lanes: allowed, But ill-advised

In advisory lanes (marked with a dashed white line), parking isn’t technically illegal, but it’s strongly discouraged. These lanes depend on driver courtesy and awareness, not enforcement. 

Blocking an advisory lane might not result in a penalty, but it can make conditions dangerous for cyclists who have to merge into traffic to pass parked vehicles.

General best practice for drivers

• Check local signs for operating times and restrictions. 
• Avoid using cycle lanes as temporary drop-off zones. 
• Be mindful of visibility at junctions or crossings, where cyclists are most vulnerable. 

Even where parking is allowed, keeping cycle lanes clear is always the safer and more considerate choice.

When can cyclists leave a cycle lane?

Cyclists are not legally required to stay in a cycle lane at all times. In fact, there are many situations where it’s safer to move out of one, including: 

• Avoiding potholes, parked cars, or debris. 
• Making a right turn or navigating a junction. 
• Passing slower cyclists or vehicles. 
• Avoid standing water or uneven road surfaces. 

Drivers should expect cyclists to merge in and out of cycle lanes and give them enough room, ideally 1.5 metres where possible, to do so safely.

Shared responsibility on the road

The updated Highway Code hierarchy (Rules H1–H3) reminds all drivers that those in larger vehicles have a greater responsibility to protect vulnerable road users, like cyclists and pedestrians. 

• Drivers should check mirrors before opening doors, overtaking, or turning across cycle lanes. 
• Cyclists should signal clearly and position themselves visibly in the road when needed. 
• Both should stay alert, patient, and considerate. 

Cycle lanes work best when all road users understand each other’s needs and follow the same basic principles of safety and respect.

Stay safe in and around cycle lanes

Good road safety isn’t just about rules: it’s about habits.

For Drivers:

• Keep cycle lanes clear and always check before crossing one. 
• Signal early when turning, so cyclists know your intentions. 
• Slow down in areas with active cycle traffic.

For Cyclists:

• Stay visible with lights and reflective clothing, not just at night. 
• Maintain your bike, especially tyres and brakes. 
• Leave space from parked cars to avoid dooring incidents.

What to do is you encounter and obstruction

Despite best efforts, parked or stopped vehicles in cycle lanes remain a common frustration for cyclists. If you’re a cyclist: 

• Slow down and signal clearly before merging into traffic. 
• Avoid passing too closely to the kerb or squeezing between vehicles. 
• Report persistent obstructions to your local council, or via online tools like Fix My Street. 

If you’re a driver and need to enter a cycle lane briefly, for example, to avoid an obstacle or turn left, do so carefully and yield to any cyclists first. 

Keeping cycle lanes clear helps reduce congestion, lower accident risks, and make the roads safer for all.

In Summary: Sharing the road safely

• The Highway Code cycle lane rules are designed to protect cyclists and make roads safer. 
• Mandatory lanes (solid white line) must not be used by vehicles during their hours of operation. 
• Advisory lanes (dashed line) rely on driver courtesy; parking may not be illegal, but it’s still unwise. 
• Cyclists can leave lanes when necessary for safety. 
• Drivers and cyclists alike benefit when lanes are respected and kept clear of obstructions.

Helping everyone stay safe on the road

Cycle lanes, road markings, and regular vehicle maintenance all share a single goal: to keep every road user safe. 

At Kwik Fit, our commitment to road safety extends beyond the workshop. Whether you’re cycling to work or driving alongside cyclists, awareness and preparation make all the difference. 

Our expert technicians help motorists stay road-ready through trusted MOTs, tyre services, and free vehicle safety checks at more than 600 Kwik Fit centres nationwide. 

Book your vehicle check at your local Kwik Fit centre today and do your part to keep the UK’s roads safe for everyone, whether you’re on two wheels or four.