Crash risks while driving at night are higher than during the daytime, but most roadways in the U.S. do not have roadway lighting.
In fact, many state and local governments find it difficult to pay for installing, operating and maintaining roadway lighting. Despite these concerns, the proportion of nighttime driving is not likely to go down in today’s round-the-clock economy, making car headlights increasingly important to nighttime driving safety. Through its Transportation Lighting and Safety program, the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute is evaluating the potential for new lighting technologies and approaches to improve driving safety at night, including new car headlight systems.
Senior Research Scientist and Adjunct Assistant Professor John Bullough presented recent LRC research results at two international conferences dedicated to driving, vision, lighting and safety. At the International Symposium on Automotive Lighting (www.isal-symposium.de), held September 23-25 in Darmstadt, Germany, Bullough presented a paper entitled “Applying visual performance modeling to adaptive curve lighting safety data,” looking at swiveling or bending headlights that direct light into roadway curves. Visibility analyses from LRC field studies using these systems in comparison with conventional, stationary low-beam headlights led to estimates of reduced nighttime crash frequencies of almost 4% along low-speed, sharp roadway curves and between 1% and 2% along higher-speed, shallower curves.
Earlier, at the Detroit Institute of Ophthalmology’s The Eye, The Brain and The Auto research congress (www.dioworldcongresses.com) held in Dearborn, Michigan from September 16-18, Bullough presented “Adaptive vehicle lighting, visual performance and safety,” a look at the potential safety benefits of adaptive or glare-free high beam headlight systems, which are beginning to appear on international vehicle models. These systems allow drivers to use high beam headlights while selectively dimming a portion of the beam when oncoming drivers are present, which prevents glare to the oncoming drivers while providing improved visibility along the rest of the road. The LRC’s analyses suggest that nighttime crashes might be reduced by nearly 7% when adaptive high beams are used, relative to using low beam headlights.
The Latest on: Advanced Car Headlight Systems
- From Audi to Tesla, Car Companies Are Making Consumers Pay for Tech They Can't Use Yet on November 20, 2018 at 9:41 am
Headlights ... long before the systems are either ready for prime time or even legal, activating them via over-the-air software updates when the time is right. These include everything from a dashcam ... […]
- As number of deer-car crashes spike, so does price tag for repairs on November 14, 2018 at 8:52 am
AAA attributes that price spike to the high repair cost of advanced systems like automatic emergency ... For other drivers, a deer-car collision often damages fenders, headlights, hoods, bumper covers ... […]
- Apple working on headlight system that could highlight road hazards for drivers on September 6, 2018 at 6:48 am
Apple is considering ways to make drivers more aware of potential road hazards, including headlights ... interest on a car's windscreen. Published on Thursday by the United States Patent and Trademark ... […]
- There's a huge safety issue that many people buying cars never even think about on March 30, 2016 at 12:16 pm
The study featured 82 different headlight set ups on 31 different midsize cars sold in the US. Only the 2016 Toyota Prius V with the Advanced Technology ... "Hopefully this drives car makers to design ... […]
- Many cars' headlights work poorly, study finds, with big gap between best and worst on March 30, 2016 at 7:20 am
A new rating of the headlights of more than 30 midsized car models ... headlight systems were available for the 31 2016 models assessed in the study. To get the top-rated headlights in the Prius v, co... […]
via Google News and Bing News