Specialist Rail Consultancy Services
We deliver independent, expert technical services across the full rail project lifecycle — from initial concept through to operation and beyond.
Core Service
Rail Signalling
Our signalling consultants bring hands-on project experience across a wide range of railway types and technologies. We support clients at every stage — from outline design and feasibility through to detailed design review, verification and independent assurance.
We work across conventional lineside signalling as well as modern train protection and traffic management systems, ensuring our advice is grounded in practical delivery knowledge.
- Signalling design review and independent checking
- ETCS, CBTC and ATP system expertise
- Traffic management and operations planning
- Conventional lineside signalling — UK and international standards
- Signalling principles, layout and scheme design
- Level crossing risk assessment and design
Core Service
Systems Integration
Rail projects bring together multiple technical disciplines — signalling, rolling stock, infrastructure, power, telecommunications and control — each with their own requirements and standards. Poorly managed interfaces are a leading cause of project delay and cost overrun.
We provide independent systems integration expertise to help clients identify, manage and close interface risks before they become programme issues.
- Interface requirements management
- Signalling and rolling stock compatibility assessment
- Systems integration planning and test strategy
- Interface Control Documents (ICDs) and register management
- Cross-discipline technical coordination
- Stakeholder and supplier interface facilitation
Core Service
Safety Assurance
Safety is non-negotiable in rail. Our safety assurance team provides rigorous, independent assessment of safety cases, hazard analyses and functional safety deliverables — giving clients and regulators the confidence they need.
We are experienced in working within both UK and international regulatory frameworks, including the Common Safety Method (CSM) and relevant EN standards.
- Preliminary Hazard Analysis (PHA) and System Hazard Analysis (SHA)
- RAMS — Reliability, Availability, Maintainability and Safety studies
- Functional safety review to EN 50126, EN 50128, EN 50129
- Safety case development and independent assessment
- Common Safety Method (CSM) support
- Risk acceptance and ALARP demonstrations
Core Service
Technical Advisory
Procurement decisions, contract strategies and technical specifications set the foundation for every rail project. Getting these wrong early is costly to fix later. We provide clients with the independent technical insight they need to make sound decisions.
Our advisory work spans feasibility studies, procurement support, technical due diligence and expert witness services — working for operators, funders, contractors and regulators alike.
- Technical specification development
- Tender evaluation and supplier assessment
- Feasibility and options studies
- Technical due diligence for funders and investors
- Contract and programme technical review
- Expert witness and dispute resolution support
Core Service
Testing & Commissioning
Over 40 years of Metro and Mainline signal testing experience. Our licensed testers provide hands-on commissioning leadership across CBTC, ATP and conventional signalling systems internationally.
We hold active IRSE Tester in Charge and Principles Tester licences and have delivered critical commissioning milestones across the UK, Europe, Asia and the Americas.
- IRSE Tester in Charge and Principles Tester (active licences)
- CBTC testing and commissioning — Thales, Bombardier, Alstom, Ansaldo
- SSI-based validation and simulator-based principles testing
- Test and Commissioning Manager for TfL's 4LM project
- Lead Designated Competent Person — DLR Rolling Stock Replacement
- Assurance Engineer — Rail for London Infrastructure (Crossrail)
- Development of testing procedures and best-practice frameworks
Core Service
Track Works
Design and construction management for rail track infrastructure across mainline and metro systems. With over 40 years of experience, our team has overseen rail track construction and infrastructure delivery across 17 countries.
We provide technical leadership across ballasted and ballastless track, bridge and tunnel infrastructure, ensuring quality control, site supervision and compliance with international safety standards.
- Rail track construction — ballasted and ballastless
- Bridge and tunnel infrastructure oversight
- Quality control and method statement verification
- Site supervision and contractor management
- Stakeholder engagement with ministries and international partners
- Compliance with international safety standards and technical specifications
Core Service
Programme Interfaces
Engineering interface management across civil, track, signalling, systems and stakeholder disciplines. We coordinate between technical teams, contractors and authorities to ensure interface risks are identified and closed before they impact the programme.
With experience managing interfaces on some of the world's largest rail programmes, we provide the independent oversight needed to keep complex projects on track.
- Engineering interface management — civil, track, signalling and systems
- Interface Control Documents (ICDs) and register management
- Stakeholder coordination — ministries, operators, contractors
- Safety and compliance interface management (CENELEC, Railway Group Standards)
- Multidisciplinary team leadership — up to 150 staff
- Interface management on HS1, WCML, Kazakhstan Metro, Azerbaijan refurbishment
How We Work
Our approach is structured, transparent and tailored to each client engagement.
Understand
We take time to understand your project, programme, constraints and objectives before we begin — so our advice is always relevant and actionable.
Assess
We apply rigorous technical analysis, drawing on experience across international rail standards and project delivery environments.
Advise
We provide clear, independent advice — written for your audience, whether that is a project team, a board or a regulator.
Support
We remain available to support implementation, respond to queries and adapt our engagement as your project evolves.
Technical Disciplines
Our consultants hold expertise across a broad range of railway signalling and systems disciplines.
ETCS / ERTMS
European Train Control System design, assessment and integration across all application levels.
CBTC
Communications-Based Train Control for urban metro and automated transit systems.
Interlocking & Control
Relay and solid-state interlocking design, review and testing — UK and international types.
ATP & Train Protection
Automatic Train Protection, AWS, TPWS and equivalent national systems.
Traffic Management
TMS and operational planning for complex rail networks.
Level Crossings
Risk assessment, design review and compliance for all crossing types.
Telecoms & SCADA
Trackside communications, GSM-R, GSMR migration and SCADA systems.
Rolling Stock Interface
Signalling compatibility assessment for new and modified rolling stock.
Functional Safety
Safety-critical software and hardware assessment to IEC 61508 and EN standards.
Our Capability Areas
Explore our dedicated capability pages for detailed information on each of our specialist disciplines.
Signalling Capability
Design, integration and assurance across CBTC, ETCS, ATP and conventional systems.
View capability →Systems Integration
Interface management and cross-discipline integration across major rail programmes.
View capability →Safety Assurance
Independent safety assessment, hazard analysis and compliance to EN standards.
View capability →Testing Capability
Licensed testing and commissioning across CBTC, ATP and conventional signalling systems.
View capability →Technical Management
Senior leadership across design, delivery, assurance and programme management.
View capability →Track Works
Rail track construction and infrastructure delivery across mainline and metro systems.
View capability →Programme Interfaces
Engineering interface management across civil, track, signalling and stakeholder disciplines.
View capability →