Simulation

Light Pollution

Photometric modeling and exterior lighting compliance that mitigates night-sky glow, eliminates light trespass and protects surrounding ecosystems.

About This Service

At Montreal Group LLC, our specialized light pollution simulation and exterior lighting compliance services help projects mitigate night-sky glow, eliminate light trespass, and protect surrounding ecosystems. Using sophisticated photometric modeling software, our engineering team evaluates exterior lighting designs to ensure full compliance with international dark-sky standards and green building requirements.

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Technical Scope

Core Phases of Our Light Pollution Simulation Scope

Site Context & Zone Classification

We establish exact project boundaries, adjacent property conditions, and appropriate lighting zones (LZ0 through LZ4) to set accurate baseline compliance criteria tailored to the surrounding environment.

Photometric Data & Fixture Integration

We incorporate precise luminaire photometric files (IES files) into our 3D site models, mapping exact fixture locations, mounting heights, aiming angles, and lumen outputs for a physically accurate simulation.

Light Trespass & Boundary Analysis

We calculate illuminance levels (in footcandles or lux) at property lines and sensitive receptors to ensure exterior lighting does not spill onto adjacent parcels or public right-of-ways.

Uplight & Glare (BUG Rating) Evaluation

We assess Backlight, Uplight, and Glare (BUG) ratings for all exterior fixtures, restricting direct beam emissions into the night sky and preventing visual discomfort for pedestrians and motorists.

Green Building Certification Alignment

We compile complete calculation packages, compliance summaries, and documentation to satisfy prerequisite and credit requirements for international frameworks such as LEED and GSAS.

Photometric Studies