DALI Lighting Awards 2021

>> DALI Lighting Awards 2021 - Winners

Company: Delmatic
Project: Doha Metro
Location: Doha, Qatar
Category: Infrastructure

Judges' comments

The WINNER of the DALI Lighting Award in the Infrastructure category is Delmatic for the Doha Metro.

In this project, DALI lighting control and monitoring extends across a network of thirty-seven stations on the driverless Doha Metro system. The precise dimming and scene-setting capabilities of DALI enable the specified lighting layouts and scenes to be replicated consistently across the different stations. Overall, the Metro system uses 133,000 DALI lamps, 500 DALI sensors and 200 DALI switches.

The station architecture takes inspiration from traditional Bedouin tents and reflects Qatar’s heritage. The ‘vaulted spaces’ architecture directs daylight deep into the station’s interior, and the DALI systems dynamically adjust the lighting to replicate the effects of daylight in subterranean areas. DALI sensors adjust lighting levels according to varying conditions of occupancy and daylight, and the integrated light lines along the station’s ceiling and pillars double as wayfinding elements for passengers.

The DALI systems monitor the health and status of the DALI drivers and devices in real time to enhance the efficiency of the entire lighting installation, and enable rapid maintenance and proactive relamping schedules.

Judges praised the strong use of DALI combining with architectural lighting design elements that bring light underground and create a comfortable environment for travellers.

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Project overview

In Qatar, Delmatic DALI systems provide energy-efficient, scene-setting control and monitoring across the network of 37 Doha Metro stations, including front-of-house concourses, mezzanines, platforms, ticket offices, public facilities, back of house and external spaces.

The systems control and monitor around 133,000 DALI lamps, 500 DALI sensors and 200 DALI switches. IP DALI Broadcast modules provide efficient, addressable control of up to 480 DALI luminaires across twelve channels, without needing to address each fitting individually.

DALI sensors achieve substantial energy savings, by adjusting lighting in real-time to occupancy and daylight detection, as well as providing astronomic calendar scheduling. DALI Relays provide switching control of non-DALI light sources.

The DALI systems combine open-protocol Modbus communication over stations' IP network, and integrate with stations' building management system (BACS) to share data, monitor and manage lighting, as well as optimise operational efficiency.

The systems provide sophisticated control and operational flexibility through animated graphical software, without needing to access equipment or carry out wiring changes to the installation.

Device status is monitored in real time to enhance efficiency and enable rapid maintenance and proactive replacement of luminaires. The systems also monitor the cumulative run-hour of each DALI lighting channel and generate recommended relamping schedules to ensure lamps are replaced at the optimum time.

Open protocol DALI technology avoids vendor lock-in and enables multi-vendor support, as well as seamless integration between open systems and services.

Overall, the lighting design enhances travellers' experience and creating welcoming spaces to encourage the use of public transport.