| Term | Definition | |------|-------------| | U0 | Minimum illuminance divided by average illuminance | | TI | Threshold Increment (measure of disability glare) | | FCO | Full Cut-Off – zero candela at or above 90° | | CCT | Correlated Color Temperature |
| Application | Max Illuminance (Lux) | Max CCT | Control Requirement | | :--- | :--- | :--- | :--- | | Residential Streets | 10 – 15 | 2700K | Dim to 50% post-midnight | | Major Arterial Roads | 20 – 30 | 3000K | Smart adaptive dimming | | Building Façades | 50 (average) | 2700K (static) | Automatic curfew dimmer | | Parks & Pedestrian Paths | 5 – 10 | 2200K – 2700K | Motion-activated dimming | | Construction Sites | 20 (temporary) | 3000K | Timer cutoff at 8 PM |
For any professional lighting design or compliance work in Abu Dhabi, use these current, enforceable references: pr 402- abu dhabi lighting manual
Abu Dhabi is a city that transforms after dark. From the shimmering façades of Yas Island to the cultural majesty of the Saadiyat Cultural District, the emirate’s nighttime identity is as vital as its daytime architecture.
But creating a world-class nocturnal cityscape doesn’t happen by accident. It requires rigorous standards to ensure safety, sustainability, and beauty. This is where PR 402 – The Abu Dhabi Lighting Manual comes into play. | Term | Definition | |------|-------------| | U0
For developers, architects, and engineers working in the region, PR 402 is more than just a guideline—it is the definitive roadmap for illuminating the capital. In this post, we break down what PR 402 entails, why it matters, and how it shapes the future of urban design in Abu Dhabi.
Zero uplight is not a suggestion; it is a specification. Every luminaire must be full cutoff (BUG rating of 0 or 1 in the Uplight category) . Light spill above 90° horizontal is prohibited. | Application | Max Illuminance (Lux) | Max
The manual provides specific guidance on Correlated Color Temperature (CCT). It generally encourages warmer white light (3000K and below) for residential and heritage areas to minimize ecological impact (sea turtle nesting areas are a specific concern in Abu Dhabi) and reduce sky glow, while allowing cooler temperatures for high-activity commercial zones. This nuance demonstrates an understanding of the biological impacts of artificial light at night (ALAN).