Arbitration Involving Urban Air Mobility Vertiport Construction Disputes
Arbitration Involving Urban Air Mobility (UAM) Vertiport Construction Disputes
Urban Air Mobility (UAM) projects—comprising vertiports, charging hubs, and integration with existing urban infrastructure—are emerging as complex, high-value construction and infrastructure ventures. Disputes often arise due to design defects, construction delays, non-compliance with aviation regulations, and contractual performance failures. Arbitration is commonly used due to cross-border investment, confidentiality concerns, and the specialized technical nature of vertiport construction.
I. Common Causes of Vertiport Construction Disputes
1. Construction Delays
Delays in foundation work, vertiport pad construction, or airside infrastructure
Late delivery of elevators, charging stations, or passenger facilities
Contractor disputes over extensions of time and liquidated damages
2. Design and Technical Deficiencies
Failure to comply with civil aviation regulations, noise or vibration limits
Inadequate structural strength to handle eVTOL operations
Misalignment with city zoning or environmental permits
3. Safety and Regulatory Compliance Issues
Non-compliance with local aviation authority (JCAB, FAA, EASA) requirements
Fire safety, lightning protection, and obstacle clearance violations
4. Subcontractor and Supplier Failures
Tier-2 or specialized equipment delays
Defective or non-certified materials (e.g., concrete, charging infrastructure)
5. Integration Failures
Incomplete or faulty integration of charging stations, air traffic control systems, and vertiport management software
Disputes regarding interface obligations between multiple contractors
II. Core Legal Issues in Arbitration
1. Force Majeure and Delay Responsibility
Arbitral tribunals analyze whether construction delays result from:
Contractor default
Regulatory delays
Unforeseen site conditions
Material supply chain disruptions
Authority:
The Sea Angel
Clarified principles of frustration and allocation of risk.
2. Liquidated Damages and Performance Guarantees
Vertiport contracts often include LD clauses tied to:
Delay in commissioning
Failure to achieve operational readiness
Missed milestone payments
Authority:
Cavendish Square Holding BV v Makdessi
Confirmed enforceability of LD clauses protecting legitimate commercial interests.
3. Termination Due to Persistent Delay or Deficiency
Contracts may allow termination if critical milestones are missed or construction defects persist.
Authority:
Triple Point Technology Inc v PTT Public Company Ltd
Clarified accrual of damages and LDs post-termination.
4. Remoteness and Quantum of Damages
Claims often involve:
Lost revenue from delayed vertiport operation
Penalties from UAM operators or city authorities
Cost of remedial construction
Authority:
Hadley v Baxendale
Damages must be reasonably foreseeable at the time of contracting.
5. Proof of Delay and Technical Responsibility
Tribunals examine:
Construction logs, design approval dates
Inspection reports and regulatory permits
Material supply schedules
Authority:
Walter Lilly & Company Ltd v Mackay
Emphasized evidentiary standards for delay and cost claims.
6. Interpretation of Construction and Performance Clauses
Contracts may include complex obligations on:
Structural performance
Safety compliance
Integration of vertiport software and equipment
Authority:
Dalkia Utilities Services Plc v Celtech International Ltd
Focused on interpretation of milestone and performance clauses in energy and infrastructure projects.
7. Fitness for Purpose and Technical Standards
Even timely completed vertiports must meet operational specifications:
Load-bearing capacity
Electrical charging reliability
Air traffic management compatibility
Authority:
MT Højgaard A/S v E.ON Climate & Renewables UK Robin Rigg East Ltd
Confirmed that fitness-for-purpose obligations can override mere compliance with technical codes.
III. Evidentiary Considerations in Arbitration
Tribunals rely on specialized expert evidence:
Civil/Structural Engineers – Structural integrity, foundation design, load analysis
Aviation Experts – Safety, obstacle clearance, regulatory compliance
Project Management Specialists – Delay analysis, milestone validation
Electrical and Software Engineers – Charging infrastructure, vertiport management systems
Quantum Experts – Calculation of LDs, remediation costs, and lost revenue
Key questions include:
Did construction delays result from contractor negligence or regulatory/force majeure events?
Was the vertiport designed and constructed according to operational and safety requirements?
Were remedial measures adequately implemented?
Were milestone obligations clearly defined and enforceable?
IV. Typical Tribunal Findings
Tribunals may:
Enforce LD clauses for delays or failure to achieve operational milestones
Award costs of corrective construction or equipment replacement
Apportion responsibility where concurrent factors (regulatory delay, subcontractor failure) exist
Reject claims for unforeseeable regulatory or supply chain delays
Consider diminished value claims where operational readiness is compromised
V. Emerging Issues in UAM Arbitration
Integration of eVTOL airspace and urban air traffic control
Cybersecurity obligations for vertiport software and communications
ESG compliance, noise, and environmental impact mitigation
Multi-jurisdictional regulatory compliance for international investors
Insurance coverage and subrogation in high-value infrastructure disputes
VI. Conclusion
Arbitration involving UAM vertiport construction disputes centers on:
Strict milestone and performance obligations
Liquidated damages enforcement
Technical compliance with aviation and urban infrastructure standards
Apportionment of responsibility among multiple contractors and subcontractors
Remoteness and quantum of consequential financial loss
Authorities such as MT Højgaard A/S v E.ON Climate & Renewables UK Robin Rigg East Ltd, Cavendish Square Holding BV v Makdessi, and Triple Point Technology Inc v PTT Public Company Ltd provide guidance on performance guarantees, liquidated damages, and termination remedies, shaping arbitral reasoning in high-value urban air mobility infrastructure disputes.
RELATED Blog
comments