California’s Orange Highway Stripes Are Already Changing How You Drive
A road construction project near San Diego, California, has implemented road signs that many drivers are unfamiliar with. Where you would normally see white or yellow lines separating lanes on the road, this project had white and orange lines painted one after the other instead. The purpose of these signs is to warn drivers that they are in a construction zone to encourage slower, safer driving.
This was a pilot project by Caltrans and SANDAG Build NCC. Lanes are temporary and are used only when drivers need to be warned of special road zone rules, such as reducing speed in construction areas. Safer roads are something that is often sought after. Driving tracking application that helps people drive safer. Proposed benefits for these lanes are that they are conspicuous and tell drivers they are entering a construction zone. They are more visible at night than the orange cones. They also more easily mark where construction zones end and begin, rather than relying entirely on road signs.
The lanes are also used to better distinguish lane changes that may be temporary during construction periods, helping drivers know where to go. This pilot project was met with success and more drivers became aware that they were in a construction zone. Although not everyone knew what the stripes meant, the color paired with the standard orange and white cones helped get the message across.
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California isn’t the first place to try these orange stripes
Orange sign in front of Road Works – Jakes47s/Getty Images
California is actually successfully following other states’ models by using these orange and white road lanes. The first state to implement them, about a decade ago, was Wisconsin. Since winters are more severe here, the state decided to test orange stripes. Since snow and road salt can make it difficult for drivers to change lanes during construction, the color orange was chosen to be bright and attract attention.
Kentucky became the next state to try them on an interstate construction project in 2019. This was followed by Texas in 2020, Michigan in 2022 and Washington in 2023. The Indiana Tollway is being considered to trial these orange and white lanes for an unknown future date. The United States isn’t the only country to follow these lines, either, as it has been successfully tested in Canada and New Zealand.
The benefits for human drivers are clear. With the rise of self-driving robotaxi services and autopilot cars, it’s interesting to think about whether these high-visibility lanes could better assist these systems. Robotaxi service Waymo recently issued a safety recall Because their car had passed an illegally stopped school bus. Maybe pilot programs like this can make both human and self-driving cars safer. Because both robotaxi and orange lanes are so new, there is no data on how the systems respond to temporary striping.
Do orange stripes increase safety?
The rear of a blue car crashed into a black car – Sahrul1108/Shutterstock
Accidents on construction sites are an ongoing problem. According to the data received National Work Zone Safety ClearinghouseIn 2023, 899 deaths occurred in accidents at construction sites. 40 of these deaths were pedestrians doing roadwork. These figures have not improved significantly since 2015; It fluctuates each year but consistently remains between 700 and 1,000 deaths.
Research was conducted in 2023 on how these orange and white stripes help prevent accidents on construction sites. Published via Purdue University Under the heading “Effectiveness of Contrast Markings on Roads and Orange Markings in Work Zones”. The study found that these signs reduced lane departure crashes by 74%, and the majority of drivers approved of the signs and found them helpful. The orange signs also contributed to speed reductions of nearly four miles per hour compared to construction zones without orange stripes.
As the use of these orange stripes spreads from California to other states, it will be interesting to see whether future crash data reports a significant reduction in fatalities in the work area. Whether or not drivers are aware of what the lanes mean, their respective safety habits look promising. A future where all construction zones use orange stripes may be on the horizon.
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