Pendyne

Pendyne Consulting

Human Factors, Rail Operations and Engineering Expert Witness Services

Pendyne Consulting provides independent expert witness services in human factors, ergonomics, rail operations and safety-critical engineering.

We specialise in the investigation and analysis of complex incidents involving human performance, operational decision-making, engineering failures and organisational factors within rail and other high-risk industries.

Our consultants combine practical operational and engineering experience with specialist human factors expertise to deliver clear, evidence-based opinions suitable for litigation, arbitration, regulatory investigation and inquest proceedings.

Areas of Expertise

Human Factors and Ergonomics

• Human error and performance analysis 
• Situational awareness and decision-making 
• Fatigue, workload and vigilance 
• Competence, supervision and training 
• Procedures and rule compliance 
• Human-machine interface (HMI) usability 
• Cab, control room and operational ergonomics 
• Safety culture and organisational factors 

Rail Operations and Safety

• Signal Passed at Danger (SPAD) incidents 
• Driver and signaller performance 
• Depot and maintenance operations 
• Operational risk and safety management 
• Incident investigation and root cause analysis 
• Railway operational standards and compliance 

Engineering and Systems

• Rolling stock systems and interfaces 
• Mechanical and electrical failures 
• Systems integration and RAMS 
• Safety-critical systems engineering 
• Maintenance and inspection failures 
• Interaction between engineering and human factors 

Expert Witness Services

Pendyne provides:

• CPR-compliant expert reports 
• Independent causation analysis 
• Joint expert discussions and statements 
• Technical review of disclosure evidence 
• Court, tribunal and regulatory support 
• Clear presentation of complex technical evidence 

We are experienced in analysing incidents where multiple contributory factors exist across human, organisational, operational and engineering domains.

Typical Instructions

Typical matters include:

• SPADs and operational decision-making failures 
• Human error in safety-critical environments 
• Fatigue and workload-related incidents 
• Maintenance and inspection errors 
• Control room and HMI usability issues 
• Failures in competence management or supervision 
• Multi-factor transport incidents involving both engineering and human performance issues 

Experience and Credentials

Pendyne’s consultants have worked across rail, transport, defence, aerospace and other safety-critical sectors in the UK and internationally.

The team includes:

• Chartered Ergonomists and Human Factors Specialists (CErgHF) 
• Chartered Engineers (CEng) 
• Chartered IOSH professionals (CMIOSH) 

Pendyne is a CIEHF Registered Consultancy.

Our consultants have experience preparing expert reports, supporting legal teams and presenting technical evidence in formal proceedings