UGL’s scope of work for the Clem 7 project included:
- project management
- procurement/ fabrication
- construction and
The tunnel was built by a joint venture, consisting of Leighton Contractors, Baulderstone, and Bilfinger-Berger. The joint venture engaged UGL to design and construct the tunnel’s mechanical and electrical services, including the control and communications system.
UGL’s integrated development methods provided a single and consistent operator interface for the widely diverse tunnel sub-systems, allowing the safest and most efficient use of the facility for both the public and maintenance personnel.
Formal software architectural definition methods were used to define all the mandatory modules within the complex system. A centralised multi-disciplinary engineering database was used to manage all the necessary design information.
Engineers were assigned responsibility for work in functional areas instead of in software application fields. This innovative departure from routine transport control and communications system development approaches provided advantages in terms of higher accuracy, faster start-up, concurrency, consistency, quicker response to change, traceability, and expanded construction support.
The various sub-systems and equipment which are monitored and controlled by the tunnel control and communications solution that UGL delivered includes:
- fire control
- power distribution
- HV sub-stations
- emergency exit
- cross/egress passage ventilation
- incident detection and traffic monitoring
- incident response management
- building service control system