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Industries · Metro & Rail

Track alignment is fixed. Everything else has to fit.

Three contractors, four systems packages, and twelve stations across a fixed alignment. Each package is designed independently but they all share the same corridor, and nobody owns the interfaces between them. We federate the route, lock every interface, and govern one model from BEP through operator handover.

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Metro and rail coordination — station box, tunnel interface and systems clearance resolved across the alignment
RTAAuthority
EXPO 2020Authority
PARSONSLead Consultant
AECOMLead Consultant
SYSTRARail Consultant
EGISRail Consultant
ALSTOMSystems Contractor
ACCIONACivils Contractor
GULERMAKCivils Contractor
SK ENCCivils Contractor
SAMSUNG C&TCivils Contractor
HITACHI RAILSystems Contractor
RTAAuthority
EXPO 2020Authority
PARSONSLead Consultant
AECOMLead Consultant
SYSTRARail Consultant
EGISRail Consultant
ALSTOMSystems Contractor
ACCIONACivils Contractor
GULERMAKCivils Contractor
SK ENCCivils Contractor
SAMSUNG C&TCivils Contractor
HITACHI RAILSystems Contractor
Linear coordination

Own the interfaces across every package on the route

Four coordination layers for linear infrastructure where multiple contractors share one alignment.

What it is
What it delivers
Station Architecture

Metro stations combine complex passenger flow geometry with heavy MEP infrastructure in spaces you cannot easily access once construction starts. Platform edge doors, ventilation shafts, escalator voids, and services distribution coordinated within tight structural envelopes.

Your team catches clashes in the model before excavation begins. No costly rework once the station box is built.

Tunnel & Civil Interfaces

Tunnel boring and cut-and-cover sections interface with station boxes at critical connection points. These interfaces sit between different contractors' scopes and are where coordination failures concentrate. Structural continuity, waterproofing, and MEP penetrations coordinated across separate design packages.

Your contractors work with confidence. Every scope boundary verified in the model against adjacent work packages.

Systems Integration

Rail, signalling, and comms all occupy the same corridor. Track alignment, overhead line equipment, and cable routing verified for spatial clearance across every section.

Your systems teams and contractors agree clearance requirements before site work. Equipment positions confirmed in 3D across every corridor section.

Multi-Package Governance

Multiple contractors on overlapping packages across the linear route. Without a federated model, each contractor coordinates within their own scope and interface clashes surface at mobilisation. CDE workflows ensure each package is verified against adjacent works before site starts.

Your teams manage overlap without surprises. One integrated model controls scope boundaries across all contractors and packages.

What we deliver

From alignment to operator handover
One team.

Three stages. Click any to expand the deliverables and BIM requirements at that stage.

Federated station and tunnel models coordinated across station packages, tunnel segments, and systems interfaces. Clashes resolved in the model before excavation. Every interface verified against adjacent packages before tender.

Key Processes

Station architecture coordination

Passenger flow, platforms, ventilation and services coordinated within structural envelopes. Clashes resolved in the model before excavation.

Tunnel and corridor interfaces

Station box connections, waterproofing, MEP penetrations and structural continuity resolved across tunnel boring and cut-and-cover sections.

Systems integration

Rail, signalling and comms clearance envelopes, cable routing and equipment positions verified across every corridor and station section.

Deliverables

  • Federated station and tunnel models coordinated to LOD 300
  • Tunnel and corridor interface clash reports with resolutions
  • Rail, signalling and comms clearance verification reports
  • Multi-package coordination models for tender
  • Coordinated GA drawings and tender documentation

BIM Requirements

Multi-package BEP & CDE by authority

BIM Execution Plan structured around station packages, tunnel segments and systems interfaces. CDE mirrors the contract-package breakdown and authority approval gates.

LOD per asset class

Level of detail tied to civil, architectural and systems assets separately. Tunnel linings, station finishes and signalling each get the precision they need.

Information Exchange

IFC 4.0 validated through Solibri before CDE data drops. Naming via Uniclass 2015 with route-section and station-zone extensions.

Per-contractor construction models federated in CDE. Interface clashes detected per zone. 4D phasing sequenced across stations and tunnel segments to manage ground conditions, contractor overlap and authority approvals.

Key Processes

Multi-package and multi-contractor coordination

Multiple contractor packages federated in CDE. Interface clashes detected per zone. Each package verified against adjacent works before site mobilisation.

4D phasing and sequencing

Station and tunnel construction sequenced across the linear route to manage ground conditions, logistics and contractor overlap.

Temporary works coordination

Propping, diaphragm walls and access provisions coordinated in the model with permanent structures and contractor sequences.

Deliverables

  • Per-contractor construction BIM models for each package
  • Interface clash reports with resolutions per contractor zone
  • Temporary works coordination with permanent structures
  • 4D phasing and sequencing models for the linear route
  • Systems installation coordination across all disciplines

BIM Requirements

Clash Cycle

Weekly federation reviews with interface issues tracked in BIM Track to closure, by contractor zone.

LOD 400 Audit

Plantrooms, signalling rooms and systems risers validated against fabrication tolerances and maintenance access.

Synchro Linking

Model objects mapped to programme activities with TBM logistics, station-box pours and possessions windows linked.

As-built models verified per station and tunnel segment against installed conditions. Asset data structured for rail operations and lifecycle management. EIR sign-off discipline-by-discipline before transfer to the operator.

Key Processes

As-built verification per segment

As-built models verified per station and tunnel corridor section against installed conditions. Discrepancies logged and resolved before handover.

Asset data for operations

Rail infrastructure contains thousands of maintainable assets. Asset classification and data capture structured from early design onwards.

EIR compliance sign-off

Documentation verified per discipline, per station, per corridor segment against EIR requirements before transfer to the operator.

Deliverables

  • As-built models per station and tunnel corridor section
  • Verified COBie asset data with thousands of classified maintainable assets
  • Rail-specific maintenance schedules and spare-parts registers
  • Operations handover documentation and asset registers
  • EIR compliance validation and operator training documentation

BIM Requirements

COBie Validation

Asset data audited against the EIR's information requirement schedule, station-by-station.

IFC Final Drop

IFC 4.0 federation deposited in CDE with EIR sign-off attached per package and per authority.

FM System Handshake

Asset data mapped to operator CAFM / EAM schema before transfer. Spare-parts registers reconciled.

Services we apply

Six services. One delivery system

Every service we apply on a metro programme runs through the same standard, multi-package CDE, interface coordination by zone, systems clearance verified in 3D, asset data structured for operator handover.

Production

BIM Delivery

Station boxes, tunnel segments, civils and systems coordinated as one federated model across every contractor package.

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Programme & cost

Virtual Design & Construction

4D sequences station construction, tunnel boring and systems installation. 5D tracks quantities per station, per corridor, per package.

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Governance

Information Management

CDE by package and authority. ISO 19650 enforced across consultants, contractors, systems and operator before each gate.

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Lifecycle

Digital Twins

Asset data structured by station and tunnel segment. Thousands of maintainable assets, classified and ready for the operator's CAFM.

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Quantities

QTO & Cost

Quantities extracted per station, per corridor segment, per systems package. Cost certainty across a multi-year programme.

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Verification

As-Built Documentation

LiDAR scan-to-BIM across station boxes and tunnel sections. As-built verified against installed conditions before operator transfer.

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Metro & rail work

Routes we've coordinated

From the Blue Line to Route 2020, plus transit-adjacent infrastructure where the same linear coordination playbook applies. Six selected projects.

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Help yourself
Get the metro ISO 19650 pack
Multi-package BEP, station and tunnel LOIN frameworks, MIDP and TIDP, multi-authority responsibility matrix — the same working set we issue on every metro engagement.
Free download
Talk to us
Book a 30 minute discovery call
Talk through your route, your packages and your authority gates with someone who's coordinated metro and rail at city scale. No slide deck, no pitch — a focused conversation about where you need support.
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Got a project?
Run a zero-cost pilot on one station
We federate one station box or one tunnel segment through our full QA process. You evaluate the deliverable against your standards. Zero cost, zero obligation, full transparency.
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