2023 2023-01-0618
Validation of the Arnold Render for Creation of Physically Correct Lighting Models
Vega, H., Suway, J.
SAE Technical Paper
- Visibility and lighting
Human performance and injury
Premise liability
For premise cases, we determine if the surface in question was slippery and if the hazard was open and obvious.
We evaluate hazards under the specific illumination that was present during the incident, using the same calibrated luminance and contrast methods we apply to nighttime roadway visibility.
Scope
What this covers
Subjects
- Slips, trips, and falls
- Stairs and stairways
- Walkways and vertical discontinuities in sidewalks
- Parking stops, platforms, and uncovered holes
- Flooring surfaces and deposited or spilled materials
Analysis
- Surface traction and slip resistance measurement
- Illumination adequacy and uniformity
- Hazard visibility and conspicuity
- Pedestrian gaze behavior and expectancy
Peer-reviewed research
Published work behind this practice area
Authored by our engineers and peer-reviewed by external experts.
2022 2022-01-0802
A More Robust Method for Digital Video Camera Calibration for Luminance Estimation
Suway, J., Suway, S.
SAE Technical Paper
- Visibility and lighting
2021 2021-01-0853
Systematic Degradation of Retroreflective Materials for Testing and Research
Dinakar, S., Suway, J., Muttart, J., et al.
SAE Technical Paper
- Visibility and lighting
- Testing and instrumentation
2020
Driver Response Times to Side Road Path Intrusions from SHRP-2 Naturalistic Database
Dinakar, S., Muttart, J., Suway, J., et al.
Proceedings of the Human Factors and Ergonomics Society
- Human factors
2020 2020-01-0567
Simulation of Retroreflective Materials in a Physically Based Rendering (PBR) Engine
Cornetto, A., Suway, J.
SAE Technical Paper
- Visibility and lighting
Who does this work
Engineers on this practice area
Justin Ngo
PE, ACTAR
Accident reconstruction, human factors, and vehicle testing
- Heavy truck and passenger vehicle reconstruction
- Human factors: perception, attention, and response
- Premise slip, trip, and fall analysis
- Vehicle testing, instrumentation, and data analysis
4 publications
Jeffrey Suway
PE, ACTAR
Visibility and conspicuity, human factors, and accident reconstruction
- Night visibility and conspicuity
- Lighting issues
- Human factors
- Accident reconstruction
27 publications
Request a case review
Send us the incident location, the date, and what is in dispute. We'll discuss what analysis is possible with the evidence that exists, and what it would take to get.