Services
What we do
From design to the courtroom, our work is built on careful measurement and an understanding of how people see at night.
Lighting Design and Assessment
Lighting that works is lighting that has been measured. We design, review and evaluate outdoor lighting systems with a focus on what drivers, pedestrians and cyclists can actually see.
Typical work
- Roadway, intersection and interchange lighting design and design review
- Pedestrian crossing, path and transit-stop lighting
- Field photometric surveys — illuminance, luminance and uniformity
- Glare, light trespass and sky-glow evaluation
- Adaptive and dimming lighting strategies
- Compliance review against applicable IES, AASHTO and agency criteria
Expert Witness Services
When the question is whether something could have been seen at night, the answer has to be defensible. We provide independent, evidence-based analysis of lighting and visibility conditions.
Typical work
- Nighttime crash and incident visibility analysis
- Site inspections and photometric measurement of scene conditions
- Headlamp and roadway lighting performance evaluation
- Object detection and visibility distance assessment
- Written reports, deposition and trial testimony
- Case review and consultation for plaintiff or defense counsel
Product Assessment
Independent evaluation helps manufacturers and buyers understand how a product performs — not just on the specification sheet, but in the environment where it will be used.
Typical work
- Luminaire photometric and performance evaluation
- Vehicle headlamp and signal lighting assessment
- Retroreflective and conspicuity material evaluation
- Field and on-road testing protocols
- Measurement system repeatability and reliability studies
- Test plan development and technical documentation
Research and Technical Support
We support agencies, organizations and research teams with study design, data collection and analysis grounded in visual performance and lighting science.
Typical work
- Research study design and human-factors experiments
- Data collection planning and instrumentation
- Literature reviews and state-of-practice summaries
- Technical guidance, training and presentations
- Support for standards and recommended-practice development
How we work
A clear, documented process
01
Scope
We discuss the question, the site or product, the timeline and what a useful answer looks like.
02
Measure
Field surveys, laboratory tests or document review — using calibrated instruments and documented methods.
03
Analyze
Results are evaluated against recognized criteria and visual performance research.
04
Report
Clear findings and prioritized recommendations, with testimony or presentations where needed.
Have a lighting or visibility question?
Tell us about your project, product or case. We will tell you plainly whether and how we can help.