The 'Vehicles exceeding length indicated prohibited (metric)' road sign (code 629.1) is a regulatory traffic sign that imposes a specific restriction. It means that vehicles longer than the length shown on the sign are forbidden to proceed past this point. You must carefully check if your vehicle's length exceeds the limit indicated before continuing, and if it does, you must find an alternative route.
This regulatory sign indicates a length restriction for vehicles, crucial for navigating Great Britain's roads safely. Understanding its specific metric length prohibition is vital for your theory test revision and to avoid potential penalties when driving.
This regulatory sign is part of the legal control of the road. It may require a driver to stop, give way, keep to a direction, avoid a movement, stay out of a restricted area, or respect a vehicle-specific rule. In practice, the sign should be read with the stop line, lane markings, road layout, and any supplementary plates so the instruction is obeyed before the controlled point. It is listed in the catalogue as code 629.1.
"Vehicles exceeding length indicated prohibited (metric)" gives a binding instruction, restriction, or prohibition. The driver must understand who it applies to, where it starts, and whether any exception is shown before continuing.
Get clear, practical answers to the most common questions about the 629.1 - Vehicles exceeding length indicated prohibited (metric) road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the British driving theory exam in Great Britain.
This sign, code 629.1, tells drivers that vehicles longer than the specified metric length are not allowed to go beyond the sign. If your vehicle is longer than the measurement shown, you must not proceed on that route.
You must first determine the exact length indicated on the sign. Then, assess the length of your vehicle. If your vehicle exceeds this length, you must stop before the sign or controlled point and find a different route. Never assume the sign does not apply to you.
While the sign itself is a prohibition, exceptions might be indicated on supplementary plates. These could specify certain times, vehicle types, or purposes that are exempt. Always check for such plates and ensure you meet any stated exemption criteria before proceeding.
A common trap is underestimating vehicle length or assuming the restriction is advisory. Learners might also forget to check for supplementary plates indicating times or vehicle types. Remember, this is a binding instruction, not a suggestion, and applies to your vehicle's actual length in meters.
These signs are usually placed on roads where a length restriction is necessary for safety or to prevent damage. This can include narrow streets, bridges with weight or length limits, tunnels, or junctions leading to restricted areas. Always be prepared to re-route if your vehicle is too long.
A clear reference image of the 629.1 - Vehicles exceeding length indicated prohibited (metric) road sign used in Great Britain.

The 629.1 - Vehicles exceeding length indicated prohibited (metric) road sign may also be known by these alternative names or terms.
The 629.1 - Vehicles exceeding length indicated prohibited (metric) road sign is part of the Great Britain Regulatory Signs category, which groups together signs with similar rules and functions.
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This regulatory sign is part of the legal control of the road. It may require a driver to stop, give way, keep to a direction, avoid a movement, stay out of a restricted area, or respect a vehicle-specific rule. In practice, the sign should be read with the stop line, lane markings, road layout, and any supplementary plates so the instruction is obeyed before the controlled point. It is listed in the catalogue as code 629.1-IMP.
This regulatory sign is part of the legal control of the road. It may require a driver to stop, give way, keep to a direction, avoid a movement, stay out of a restricted area, or respect a vehicle-specific rule. In practice, the sign should be read with the stop line, lane markings, road layout, and any supplementary plates so the instruction is obeyed before the controlled point. It is listed in the catalogue as code 615.
After reviewing the full list of road signs, challenge yourself with practice questions focused specifically on sign recognition. Reinforce your learning and ensure you're fully prepared to identify and understand all traffic signs on the DVSA theory test.
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