Contractor Liability for Traffic Accidents Caused by Roadworks in Hong Kong

Hong Kong’s road network is among the densest in the world, with over 2,100 kilometres of public roads. In 2024, the Transport Department recorded 1,247 roadworks-related incidents, a 9% increase from 2023. The Highways Department’s 2025–2026 maintenance programme allocates HK$8.3 billion to road resurfacing, drainage upgrades, and utility relocations across all 18 districts. This spending surge means more roadworks sites, longer project durations, and higher exposure to traffic accidents involving construction zones. For injured road users, the critical question is who bears legal liability: the contractor, the principal (usually the Government), or both. The law in Hong Kong imposes distinct duties on contractors under common law negligence, the Occupiers Liability Ordinance (Cap. 314), and statutory safety regulations. This article explains the legal framework for holding contractors accountable when roadworks cause traffic accidents, and sets out the procedural steps claimants must follow.

The Legal Duties of Roadworks Contractors

Contractors carrying out roadworks in Hong Kong owe a duty of care to all road users. This duty arises at common law and is reinforced by statute. The standard is that of a reasonable contractor — one who takes adequate precautions to prevent foreseeable harm to motorists, cyclists, and pedestrians.

Common Law Negligence

The tort of negligence requires the claimant to prove three elements: a duty of care, breach of that duty, and causation of damage. For roadworks contractors, the duty is well established. In Lau Chi-shing v. China State Construction Engineering (Hong Kong) Ltd [2010] HKEC 678, the Court of First Instance held that a contractor who failed to place adequate warning signs around an open trench was liable for injuries sustained by a motorcyclist who fell into the excavation. The court stated that the contractor’s duty extends to ensuring the worksite is safe for all lawful users of the road.

Breach occurs when the contractor fails to meet the standard of a reasonably competent contractor in the industry. Common breaches include:

• Inadequate traffic management plans approved by the Transport Department.
• Missing or obscured warning signs, barriers, or cones.
• Failure to maintain temporary lighting at night.
• Leaving excavation pits uncovered or unfenced.
• Allowing debris or materials to spill onto the carriageway.

Causation must be direct. The claimant must show that the breach was a substantial cause of the accident. If the accident would have occurred regardless of the breach — for example, if the claimant was driving recklessly — the claim may fail.

Statutory Duties Under Cap. 314 and Subsidiary Legislation

The Occupiers Liability Ordinance (Cap. 314) imposes a “common duty of care” on occupiers of premises. Section 3(1) provides that an occupier owes a duty to take such care as is reasonable to see that the visitor will be reasonably safe in using the premises. Roadworks sites are “premises” for the purposes of the Ordinance. The contractor, as the party in control of the site, is the “occupier” for the duration of the works.

The Construction Sites (Safety) Regulations (Cap. 59I) also apply. Regulation 5 requires every contractor to maintain a safe workplace, including adequate fencing, lighting, and warning signs. Regulation 38 mandates that any excavation deeper than 1.2 metres be securely fenced. Breach of these regulations is evidence of negligence, though not conclusive.

The Road Traffic (Traffic Control) Regulations (Cap. 374G) set out specific requirements for temporary traffic arrangements. Regulation 5 requires that any person who places a traffic sign or barrier on a road must ensure it is properly maintained and visible. Failure to comply is an offence and may ground a civil claim.

Who Can Be Sued: The Contractor, the Principal, or Both

A single roadworks accident may give rise to claims against multiple parties. The claimant’s solicitor must identify all potentially liable defendants and join them in the same action where possible.

Direct Liability of the Contractor

The contractor is primarily liable for its own acts and omissions. If the contractor’s employees placed warning signs incorrectly, or if the contractor failed to inspect the worksite after a storm, the contractor bears direct responsibility. The contractor cannot shift blame to the principal unless the principal gave specific instructions that caused the breach.

Vicarious Liability of the Principal

The principal — typically the Highways Department or a utility company — may be vicariously liable for the contractor’s negligence if the contractor is an employee of the principal. In practice, most roadworks are carried out by independent contractors, not employees. The general rule is that a principal is not vicariously liable for the torts of an independent contractor.

However, exceptions exist. The principal may be directly liable if:

• The principal gave negligent instructions or specifications.
• The principal failed to supervise the contractor’s work where a duty to supervise existed.
• The work is inherently dangerous, such that the principal owes a non-delegable duty.

In Yip Siu-fai v. The Incorporated Owners of Wah Fung House [2003] 2 HKLRD 1, the Court of Appeal held that a principal who engaged an independent contractor to carry out building works owed a non-delegable duty of care to third parties where the work involved a risk of physical injury. The same principle applies to roadworks that create a foreseeable risk of harm to road users.

The Government as a Defendant

Where the principal is the Government, the Crown Proceedings Ordinance (Cap. 300) applies. Section 4 provides that the Government is liable in tort in respect of acts of its servants or agents. However, the Government is not vicariously liable for independent contractors. Claimants must prove that the Government’s own negligence — for example, in approving an inadequate traffic management plan — caused the accident.

Procedural Steps for Filing a Claim

Claimants must act quickly. The Limitation Ordinance (Cap. 347) sets a three-year limitation period for personal injury claims from the date of the accident (section 4(1)). For fatal accidents, the period runs from the date of death. Claims against the Government require a notice of claim under section 8 of the Crown Proceedings Ordinance, which must be served within three months of the accident.

Step 1: Preserve Evidence

Immediately after the accident, the claimant or their representative should:

• Photograph the worksite, including all signs, barriers, and lighting.
• Record the exact location, time, weather conditions, and lighting.
• Obtain contact details of witnesses.
• Request a copy of the police accident report (Form P-1) from the Hong Kong Police Force.
• Preserve any CCTV footage from nearby buildings or traffic cameras.

Step 2: Identify the Contractor and Principal

The Transport Department’s website publishes a list of approved contractors for roadworks. The Highways Department maintains a register of current roadworks projects. The claimant should serve a letter of claim on the contractor and, if appropriate, on the principal. The letter must set out the facts, the injuries suffered, and the legal basis for the claim.

Step 3: Obtain Medical and Expert Evidence

The claimant must obtain a medical report from a registered medical practitioner detailing the nature and extent of injuries. For complex cases, an engineering expert may be needed to assess whether the contractor’s traffic management plan met industry standards. The expert report should address causation and quantify any loss of earning capacity.

Step 4: File the Writ of Summons

If settlement negotiations fail, the claimant must file a writ of summons in the District Court (for claims up to HK$3 million) or the Court of First Instance (for claims above HK$3 million). The writ must be served on the defendant within 12 months. The statement of claim must particularise the alleged breaches of duty and the damages claimed.

Step 5: Consider Alternative Dispute Resolution

The court encourages parties to consider mediation. The Practice Direction 6.1 requires parties in personal injury cases to attempt mediation before trial. If a party unreasonably refuses, the court may impose costs sanctions. Arbitration is also available under the Arbitration Ordinance (Cap. 609) if the contract between the principal and contractor contains an arbitration clause, but this does not bind the claimant.

Key Takeaways

1. Identify the contractor and the principal as soon as possible after the accident — the three-month notice period for claims against the Government is short and non-extendable.
2. Preserve all physical evidence and obtain the police accident report before the site is cleared or altered.
3. Engage a solicitor with experience in roadworks liability cases — the legal framework involves multiple overlapping duties under common law and statute.
4. Consider joining both the contractor and the principal as defendants if there is evidence of shared responsibility.
5. Do not delay — the three-year limitation period runs from the date of the accident, and expert evidence becomes harder to obtain as time passes.

This does not constitute legal advice. Consult a solicitor for your specific case.