Insights15 Jan 2025
CDM 2015 Compliance: Essential Guide for Clients
Understanding your duties as a Client under CDM 2015 is essential for project success. Our experts explain the key requirements and how to meet them effectively.
Infrastructure &
Transport
CDM compliance and delivery assurance for highways, rail, and transport infrastructure operating in live environments.
Infrastructure projects don't happen in isolation. They happen next to live railways, on operational carriageways, above buried services—and alongside stakeholders whose primary concern isn't your programme.
The challenge is operating within someone else's environment. Limited access windows, possession constraints, traffic management regimes—all demanding integration with CDM duties that weren't written with your operational context in mind.
What we control in infrastructure delivery
We integrate CDM requirements with sector-specific standards—GRIP, DMRB, operator requirements—so compliance works within your operational constraints, not against them.
Live operational interface management with Network Rail, National Highways, and operators
Possession planning and works sequencing within limited access windows
Traffic management coordination and TM design review
Statutory undertaker interface and utilities diversion sequencing
Public safety obligations and third-party risk management
Sector-specific compliance (GRIP, GG104, DMRB) integrated with CDM duties
Temporary works design assurance for complex structural interventions
Infrastructure capabilities
Principal Designer (Rail)
GRIP-aligned CDM services
Highways PD
Traffic management and TM coordination
Possessions Planning
Works within operational windows
Temporary Works
Design assurance for complex TW
Stakeholder Interface
Network Rail, National Highways liaison
Safe Systems
Task briefings and permit systems
What you get
Possession Works Plan
Sequenced activities aligned to access windows and isolation requirements
Stakeholder Interface Log
Network Rail, utilities, and operator coordination tracker
Traffic Management Review
TM design compliance and works coordination
Temporary Works Register
Design status, checking, and permit tracking
Safe System of Work Pack
Task-specific briefings for high-risk lineside activities
Common failure modes
Where infrastructure projects stall
Infrastructure programmes don't fail from single events. They accumulate delays at interfaces—between CDM and sector standards, between contractors and operators, between design and possession planning.
1
Possession planning disconnected from CDM construction phase planning
2
Traffic management treated as separate workstream from site safety
3
Statutory undertaker interfaces uncoordinated, creating programme delay
4
Rail/highways-specific standards not integrated with CDM documentation
5
Temporary works on structures commissioned without adequate lead time
Credentialed for regulated sectors
We work within Network Rail's GRIP process, National Highways frameworks, and operator-specific requirements. Our team holds the credentials needed to operate in regulated infrastructure environments.
45+
Infrastructure projects
RISQS
Rail credentials
250+
Km of highways
Latest insights
Discuss your infrastructure scheme
Whether highways, rail, or multi-modal—our team understands the operational constraints your project operates within.
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