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London Moving Traffic Fine

Appeal a Lambeth Yellow Box Junction Fine

Guide to challenging a yellow box junction PCN issued by the London Borough of Lambeth, with statutory exceptions and signage grounds set out.

Quick facts

Issued by
London Borough of Lambeth Council
Appeal to
London Tribunals (after council formal rejection)
Discount window
14 days for 50% discount
Formal challenge window
28 days from Notice to Owner
Standard fine
£160 (£80 if paid within 14 days, £240 after charge certificate)
Fastest appeal route
Informal challenge within 14 days to preserve 50% discount, then formal representation under reg 21 CEoRTC after Notice to Owner

Lambeth Council enforces yellow box junctions across some of the busiest arterials in south London, with Brixton Hill, Streatham High Road and the Camberwell Green junctions among the highest volume sites. The contravention is enforced under Part 6 of the Traffic Management Act 2004, with London-specific powers under the Greater London Authority Road Traffic Order 2003 and the London Local Authorities and Transport for London Act 2003. PCNs start at £160, drop to £80 if paid within 14 days, and rise to £240 after a charge certificate. Yellow box markings are prescribed under Schedule 10 Part 4 of the Traffic Signs Regulations and General Directions 2016, which contains an important exception for vehicles turning right that are stopped solely by oncoming traffic or vehicles waiting to turn right. Many Lambeth PCNs are vulnerable to challenge on this exception, on faded marking grounds, or on procedural defects in the PCN itself. This guide sets out the strongest grounds.

Grounds that work for Lambeth yellow box junction fines

The statutory right-turn exception

Schedule 10 Part 4 of the Traffic Signs Regulations and General Directions 2016 prohibits entering a yellow box unless your exit is clear, but it contains an explicit exception: a vehicle turning right may enter the box and wait, provided the only reason it cannot complete the turn is oncoming traffic or other vehicles ahead that are themselves waiting to turn right. If the CCTV shows you entered the box to turn right and were held up solely by oncoming flow, the contravention is not made out. Request the full CCTV footage from Lambeth, identify the moment of entry, and quote the regulation verbatim in your formal representation under regulation 21 of the CEoRTC Regulations 2022.

Faded or non-prescribed markings

The yellow box pattern is prescribed in Schedule 10 of the Traffic Signs Regulations and General Directions 2016. The diagonal cross-hatching must be complete and clearly visible. If the paint is heavily worn, partly resurfaced, or laid out in a way that does not match the prescribed diagram, the council cannot rely on the markings to substantiate the contravention. Several Lambeth junctions have had patchwork resurfacing that leaves the markings incomplete. Visit the site in daylight, photograph the markings from the driver's eye height, measure the gaps, and submit the images with your formal representation. London Tribunals adjudicators have set aside PCNs where the markings did not form a complete prescribed box.

Signage and traffic management defects

While the yellow box itself is the primary control, the surrounding traffic management must be lawful. If the approach to the junction was altered by a Traffic Regulation Order that was not properly consulted on, or if temporary signage from utility works obscured the box on the day, the council's case is weakened. Request the TRO authorising enforcement at the specific junction, verify the camera location matches the order, check the consultation under the 1996 Procedure Regulations, and look for inconsistencies between the order and what is painted on the road. Lambeth's enforcement sites are published on the council website.

Defects in the PCN under regulation 9

Regulation 9 of the CEoRTC Regulations 2022 sets out what must appear on a valid PCN. The notice must state the contravention alleged, the location, the date and time, the registration mark, the amount of the penalty, the discount, the payment period, and the grounds for representation. The supporting CCTV stills must clearly show the vehicle inside the yellow box with the exit blocked. If any element is missing, if the timestamps are inconsistent, or if the stills do not show a clear contravention, the PCN is defective. Lambeth has had PCNs cancelled where the CCTV failed to show the moment of entry into the box.

Free flow of traffic duty under s.122 RTRA 1984

Section 122 of the Road Traffic Regulation Act 1984 places a duty on councils to secure the expeditious, convenient and safe movement of traffic. If a yellow box is sited at a junction with chronically inadequate signal timings, insufficient downstream capacity, or a design that makes compliance practically impossible during peaks, the council may be in breach of this duty. While a high bar, adjudicators have accepted in some cases that the junction made compliance impractical. Evidence can include signal timing data obtained under Freedom of Information, traffic surveys, and statements from regular users showing the chronic nature of the problem at that location.

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Local detail: Lambeth

  • Brixton Hill produces the highest PCN volumes in the borough.
  • Streatham High Road has multiple enforced yellow boxes between St Leonard's and Streatham Common.
  • The Camberwell Green junction with Coldharbour Lane is a frequent right-turn exception site.
  • Lambeth uses approved CCTV under Schedule 1 of the London Local Authorities Act 2003.
  • The relevant TRO is published on the Lambeth website under traffic management orders.
  • Formal representations must be made in writing or via the online portal.
  • London Tribunals hearings are free and can be held in person, by phone, or on the papers.

Frequently asked questions

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