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Climbing laneUnited Kingdom

An introduction to the traffic rules and road signs of United Kingdom. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.

Traffic signs
Traffic rules
United Kingdom

42. Climbing lane

A climbing lane is an additional traffic lane provided on an uphill section of road for vehicles that travel significantly slower while climbing, particularly heavy or less powerful vehicles. It allows faster traffic to pass without having to move into a lane used by opposing traffic.

Drivers using a climbing lane should follow the signs and road markings that determine who may use the lane and merge back into the normal traffic lane safely when the climbing lane ends. The exact rules and permitted users vary between countries.

Climbing lane
Climbing lane 0.5 miles ahead. (Colmonell, United Kingdom)
Wikimedia.org • Billy McCrorie • CC BY-SA
What is a climbing lane used for in the United Kingdom?

On steep UK roads, an additional climbing lane may accommodate slower vehicles while other traffic passes in a separate lane. Read the advance signs and lane markings, and do not assume the added lane continues beyond the hill.

🔗 gov.uk • Great Britain Highway Code: Rules 133–134,139: crawler/climbing lanes

🔗 gov.uk • DfT Know Your Traffic Signs: road markings (Great Britain)

What should you do when a climbing lane ends in the United Kingdom?

Look ahead for the lane-end sign and taper, check mirrors and blind spots, signal as required and merge only when there is a safe gap. Do not force traffic in the continuing lane to brake or swerve. Follow any locally prescribed merging priority.

🔗 gov.uk • Great Britain Highway Code: Rules 133–134,139: crawler/climbing lanes

🔗 gov.uk • DfT Know Your Traffic Signs: road markings (Great Britain)

Does a climbing lane create a higher speed limit or unrestricted overtaking in the United Kingdom?

No. An additional uphill lane does not by itself increase the legal maximum speed or cancel overtaking bans, lane-use restrictions or safe-distance duties. Follow the road signs, vehicle-specific limits and actual traffic conditions.

🔗 gov.uk • Great Britain Highway Code: Rules 133–134,139: crawler/climbing lanes

🔗 gov.uk • DfT Know Your Traffic Signs: road markings (Great Britain)

1 United Kingdom 2 Motorway 3 Speed limit 4 Bike path 5 Pedestrian warning 6 Bridge 7 Speed bump 8 Toll road 9 One-way traffic 10 Quay 11 Slope 12 Bus lane 13 Bus stop 14 Dead end 15 Stop sign 16 Give way 17 Roundabout 18 Road narrowing 19 Priority over oncoming traffic 20 Give way to oncoming traffic 21 Pedestrian crossing 22 Railway crossing 23 Mandatory direction 24 Turn prohibition 25 School area 26 Crossing animals 27 Slippery road 28 Rockfall 29 Aircraft 30 Curve 31 Chevron 32 Wrong-way driving 33 Roadworks 34 Height limit 35 Radar speed sign 36 Selective barriers 37 Low-emission zone 38 Priority at the next junction 39 Traffic lights 40 Traffic lights warning 41 Road markings 42 Climbing lane 43 Bike box 44 Left-hand traffic 45 Speed feedback 46 Driving licence 47 Cycling route 48 Parking 49 No parking 50 Park and ride 51 Disabled parking 52 Reversing 53 Detour 54 Road surface 55 Verge 56 Traffic calming 57 Horse riding 58 Emergency exit 59 City limit 60 Tourist attraction 61 Licence plate 62 Charging station 63 Dangers 64 Dip 65 Tram lane 66 Cyclist 67 Bus 68 Police 69 Ambulance 70 Roadway 71 Street 72 Pothole 73 Private road 74 Path 75 Particulates 76 Air pollution 77 Rush hour 78 Road code 79 Two-way traffic 80 Tram stop 81 Street gutter 82 Cargo bike 83 Forestry vehicle 84 Construction vehicle 85 Semi-trailer truck 86 Trolleybus 87 Speed pedelec 88 Delivery vehicle 89 Idling 90 Tow truck 91 Four-wheel drive 92 Passenger 93 Bicycle 94 Motorcycle equipment 95 Tram 96 Rail track 97 Public transport 98 Caravan 99 Trailer 100 Tow hitch ...