Regional Signalling Control Centre – Concept, Architecture v0 & Interfaces

Approach 1 – Integrated Podium Deck

Concept to investigate

• Explore a shared podium supporting the control centre and its services. Spanning the canal or mining passage is a hypothesis; the sketch establishes neither a feasible span nor a suitable foundation location.
• Compare possible occupied-floor and service-deck levels against surveyed rail, road, canal and electrical envelopes. No floor elevation has been selected.
• Study access, vehicle impact protection and emergency routes along the road edge. Their layout and performance requirements remain open.
• Assess vibration transmission and structural independence. A connection to viaduct piers or the use of isolation bearings would require evidence of feasibility and asset-owner acceptance.

Interface questions

• Rail – identify the asset owner, required protection/approval process, inspection access, loading and movement limits. No agreement or use of existing structures is assumed.
• Canal & road – establish navigation, flood, maintenance, highway and construction-access requirements with the responsible parties. Clearances and permitted loads are not yet known.
• Overhead line – obtain the operator’s asset information and assess electrical, construction and maintenance constraints. No safe offset or earthing arrangement has been demonstrated.
• Mining – investigate the workings and ground response before defining foundation exclusions or treatment options. Rights, consents and any grouting proposal remain to be established.

Potential benefits and trade-offs to test

• A shared deck might concentrate civil works and services, but could also concentrate structural dependencies and create difficult canal or ground interfaces.
• Future extension or rooftop plant would need an explicit capacity allowance; the concept reserves no verified capacity.
• A common package may simplify some coordination while concentrating delivery risk. Compare procurement and interface responsibilities before selecting it.

Approach 2 – Distributed Modular Clusters

Concept to investigate

• Explore three modules for operations, resilience and staff welfare in candidate spaces between corridors. The drawing does not identify low-risk or buildable ground.
• Investigate links between modules, including whether any crossing of the road or canal is necessary and feasible. Route, level and support locations are undecided.
• Compare foundation and plant-location options for each module using ground, loading, vibration and access evidence. Independent foundations do not by themselves avoid mining risk.
• Compare surface, elevated and underground service routes. A micro-tunnel is one option; no depth, material or separation from existing assets has been validated.

Interface questions

• Rail – establish structural and operational envelopes, access needs and acceptable vibration performance before choosing clearances or mitigation.
• Road – establish the crossing’s geometry, loading, protection and legal/approval requirements with the road owner. No licence or inspection arrangement is in place.
• Canal – investigate bank stability, navigation, flood behaviour and maintenance access before locating supports or defining a crossing.
• Overhead line – obtain operator-specific constraints for buildings, plant and construction equipment. This concept supplies no generic safety cone or verified electrical clearance.

Potential benefits and trade-offs to test

• Off-site manufacture could reduce some on-site work, but transport, lifting, access windows and interfaces may offset the programme benefit.
• Separate modules could support resilience only if their power, communications, access and other shared dependencies are designed and checked accordingly.
• Staged procurement could spread commitments, while adding contracts and integration work. Compare those effects against the delivery and funding constraints.

Approach 3 – Lightweight Frame Suspended from Viaduct Pier Caps

Concept to investigate

• Consider suspension from existing pier caps as a speculative alternative. It depends on structural capacity, rail operations and owner acceptance that this sketch has not established.
• Compare support arrangements, floor positions and façade envelopes against surveyed assets and the applicable requirements. No track offset proves compliance here.
• Explore equipment modules between piers while checking navigation, inspection, escape and maintenance access. Keeping the canal open has not been demonstrated.
• Use a coordinated spatial model to examine clashes alongside structural and electrical assessments. A clash-free drawing alone would not verify safety or an earthing design.

Interface questions

• Rail – determine whether the owner would consider additional loads or attachments, and assess capacity, fatigue, movements, construction and inspection access. No right to use pier caps is assumed.
• Canal – agree the scope of navigation, flood, access and environmental assessment with the relevant parties, including construction effects. Review is not limited to drip protection.
• Road – assess temporary and permanent effects, falling-object protection, access and lifting arrangements. The absence of a ground-level support does not remove this interface.
• Mining – trace changed loads through the existing foundations and consider ground response and construction effects. Mining risk remains open until assessed; it is not closed by this concept.

Potential benefits and trade-offs to test

• The scheme might reduce new ground supports, but it could require strengthening or other works. Compare total construction effort, carbon and ground effects.
• The architectural form may attract different responses from users, neighbours and asset owners; no acceptance benefit is assumed.
• A rail-led package would depend on owner willingness and a workable allocation of design, operational and long-term liabilities.

Version 0 – Non-Signalling Infrastructure System Architecture
(Approach 2 · Distributed Modular Clusters)

This is a candidate arrangement for Approach 2, not a selected or verified design. Module and link positions show relationships only; crossings and available space must be checked against real geometry.

Boundary assumptions and questions (v0)

• Rail corridor: the scenario places a viaduct along the diagonal boundary. Survey its structure and establish operational, inspection and protection envelopes; the drawing sets no compliant track or soffit clearance.
• South: the scenario places a canal here. Establish water levels, flood conditions, navigation and maintenance access before defining any development boundary.
• West: the road is a boundary and possible access route. Establish ownership, crossing needs, permitted geometry and any rights or approvals required.
• Overhead: the assumed north–south electrical line crosses the site. Its operator’s information and site-specific assessment are needed; no fixed cone or roof-height limit is supplied.
• Below ground: the scenario includes old workings at an illustrative depth. Their extent, condition and influence on existing and proposed foundations remain unknown; no exclusion radius or safe service depth is established.

Candidate system elements

• Three modules for operations, resilience and welfare; frame, foundation and loading arrangements remain to be selected.
• Inter-module links; route, crossing type, structural form and access requirements remain to be assessed.
• A shared services spine for candidate power, communications and cooling connections; route, capacity, protection and ownership remain open.
• Plant areas for each module or a shared location; compare noise, vibration, maintenance access and common-cause failures before selecting the arrangement.

Interface Questions Register – Version 0

These nine entries retain the proposed interface structure. Parties are roles to identify, and evidence is work to obtain—not an agreed specification, issued permit or completed deliverable. Every entry is open.

Next step: identify accountable parties, sources and decisions for each entry. Replace an assumption only when supporting evidence and its acceptance are recorded. This sketch does not close any interface or risk.