Traffic Management Order Defect
Summary
Every traffic restriction enforced by civil penalty must be authorised by a Traffic Management Order made under the Road Traffic Regulation Act 1984. The TMO must specifically cover the road, the restriction type, the times, and the relevant dates. R (Herron) v Parking Adjudicator [2011] EWCA Civ 905 confirmed that the TMO must cover the specific restriction being enforced. Where no valid TMO exists, or the TMO does not cover the particular restriction at the time of the alleged contravention, the PCN is unlawful. Success rate is approximately 50% — this defense requires an FOI request to investigate.
Legal Basis
Road Traffic Regulation Act 1984, Section 1: traffic regulation orders must be made by the proper procedure. Local Authorities' Traffic Orders (Procedure) (England and Wales) Regulations 1996: publication and consultation requirements for TMOs. R (Herron) v Parking Adjudicator [2011] EWCA Civ 905: the TMO must specifically authorize the restriction being enforced — a PCN issued where no valid TMO exists is unlawful.
When This Defense Applies
This defense is worth investigating where: the restriction appears recently introduced; the restriction is unusual or specific (e.g., applies only to certain times or vehicle types); you are aware of recent changes to the road layout; the council has been unable to explain the legal basis for the restriction when asked. Common TMO failures: the TMO covers an adjacent road but not the exact location; the TMO has been revoked or superseded without the signs being updated; the TMO was properly made but the restriction was extended beyond its scope without amendment.
How to Investigate
The TMO is a public document — here is how to find it:
- Submit a Freedom of Information request to the council asking for the TMO covering the specific restriction at the exact location and date
- Check whether the TMO covers the specific road, restriction type, and operational hours
- Check the TMO commencement date — was the restriction enforced before the TMO came into force?
- Check publication records — was the TMO properly advertised before implementation?
Win Rate
Approximately 50% success rate — this is an investigation-dependent defense. Where an FOI reveals no valid TMO or a TMO that does not cover the restriction, success rates are higher. Many challenges fail because the TMO does exist but was slightly misunderstood.
Operator-Specific Patterns
Westminster City Council: Complex TMO history with many amendments — check that the current TMO amendment covers the specific restriction, not just the original TMO. Manchester City Council: Recently introduced restrictions (particularly moving traffic cameras) — check that the TMO was made and in force before enforcement began.
Sources
- Road Traffic Regulation Act 1984, Section 1
- Local Authorities' Traffic Orders (Procedure) (England and Wales) Regulations 1996
- R (Herron) v Parking Adjudicator [2011] EWCA Civ 905
Frequently Asked Questions
- How do I submit an FOI request for the TMO?
- Write to the council's FOI team (usually via an online portal or by email to foi@[council].gov.uk) requesting 'the Traffic Management Order or Orders that authorise the [type of restriction] at [exact location] that was in force on [date of contravention].' They must respond within 20 working days.
- What if the TMO exists but contains an error?
- Minor drafting errors in a TMO may not invalidate it if the intent is clear. Substantive errors — wrong road name, wrong restriction type, wrong times — are more likely to defeat enforcement. R (Herron) v Parking Adjudicator established that the TMO must specifically authorise what is being enforced.
- Can I raise a TMO challenge at POPLA/Traffic Penalty Tribunal?
- Yes. This is a recognised ground of appeal at both adjudication bodies. Include the results of your FOI request in your appeal evidence. If the council cannot produce a valid TMO in their evidence response, the adjudicator will note the gap.
- Does this defense work for parking PCNs or only moving traffic?
- TMO challenges work for any civil enforcement — parking restrictions, bus lanes, moving traffic cameras, and yellow box junctions all require a valid TMO. The FOI and challenge process is the same.
Related
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