Unveiling the black road cables: Silent traffic observers capturing data for smarter road networks. Data-Driven Traffic Insights
As you navigate the highways and byways of your daily commute, you may have encountered an intriguing sight: black cables stretched across the road, almost like stealthy sentinels of the pavement. But what exactly are these enigmatic tubes, and what role do they play in our transportation infrastructure? The answer lies in the realm of traffic management and data collection.
These unassuming black cables are, in fact, portable traffic counters strategically placed by transportation authorities for research purposes. Primarily used by local agencies, these tubes hold vital insights into road usage and traffic patterns. With more than 12,000 of these traffic counters scattered across the state, they provide invaluable data that fuels the planning and development of our road networks.
Decoding the Mechanism Behind the Black Cables
The technology driving these unobtrusive rubber cords is elegantly simple yet remarkably effective.2 Each time a vehicle’s tires contact the tube, a burst of air is triggered, setting off an electrical signal recorded by a counter device. This ingenious pneumatic mechanism can track the volume of vehicles passing over a road within a given timeframe. Transportation agencies can gain insights into peak traffic congestion periods by analyzing the intervals between these air bursts. When deployed in pairs, these tubes provide even richer data, enabling the determination of vehicle class, speed, and direction.
Such information is far from trivial—it forms the bedrock for informed decisions on road signage, speed limits, and allocation of transportation budgets. Based on these insights, municipalities can fine-tune their traffic management strategies, ensuring that road systems remain efficient and safe for all road users.
Road Tubes: Beyond Just Counting
While the primary function of these pneumatic road tubes is traffic counting, their utility extends far beyond mere enumeration.3 These inconspicuous instruments serve as multi-dimensional data collectors, playing a pivotal role in enhancing our road infrastructure and ensuring smooth traffic flow.
The U.S. Department of Transportation sheds light on the operational intricacies of these tubes. When a vehicle’s tires traverse the rubber tube, a burst of air pressure is generated, closing an air switch that sends an electrical signal to a counter device. These tubes can be set up either as temporary or permanent installations, each serving distinct purposes. Temporary configurations, often lasting only a day, offer quick glimpses into traffic dynamics, while permanent setups provide continuous, in-depth monitoring.
Transportation agencies strategically position these black cables in areas with minimal interference, targeting straight stretches of road for optimal data collection. Through single-tube setups, agencies can gauge vehicle counts and time gaps between vehicles. When utilizing paired tubes, the system delves into the intricacies of traffic, capturing axle count, direction, and speed.
These unassuming tubes also step in when urban road management faces challenges. If residents raise concerns about speeding or shortcutting, these tubes are deployed to investigate and validate claims. The data they generate contributes to the formulation of transportation budgets and the implementation of effective solutions.
In conclusion, the next time you encounter those mysterious black cables stretching across the road, you can appreciate the intricate web of data they weave behind the scenes. These unassuming instruments serve as silent observers, capturing the heartbeat of our roads and guiding the decisions that shape our transportation landscape. As you pass over these tubes, remember that they are more than meets the eye— they are the pulse of our evolving road networks.
11 Actors Who Had a Chance to Portray a Legendary Character but Missed It
There are many ways to get a starring role. Some actors are selected during castings, while others are invited due to their popularity, which is what happened to Kate Winslet after Titanic. But not all auditions end successfully, or actors may not agree to offers made by film directors or producers. For example, Russell Crowe refused to star in Lord of the Rings because his intuition told him so.
At Bright Side, we imagined what our favorite characters would look like if other people portrayed them.
Daenerys Targaryen — Elizabeth Olsen
The actress, who has become famous for her role of the Scarlet Witch, failed auditions for the role of Mother of Dragons at the beginning of her career. Elizabeth Olsen later described what happened: “It was the most awkward audition I’d ever had. I was doing the Khaleesi speech when she comes out of the fire. It was awful. I didn’t get a callback.” As a result, Daenerys was played by Emilia Clarke.
Aragorn — Russell Crowe
Russell Crowe was asked once whether he regretted refusing to play Aragorn in the iconic trilogy, Lord of the Rings. The actor honestly replied that he had never thought about it and explained why he didn’t join the project. According to Crowe, Peter Jackson never really wanted to cast him for the role of Aragorn. Russell’s instinct told him that the director already had a suitable person in mind, so he politely declined the offer.
Ellie Sattler — Gwyneth Paltrow
In 1992, Gwyneth Paltrow wanted to get the role of Dr. Ellie Sattler. This part would’ve really helped the career of the aspiring actress because Jurassic Park had become a popular franchise. However, the future star failed, and the role went to Laura Dern.
James Bond — Henry Cavill
Now it’s hard to imagine anyone but the brilliant Daniel Craig playing this role, but Henry Cavill had a chance to become the new Agent 007. The actor was turned down because he was “a little chubby.” Cavill accepted the criticism with dignity and began to do more physical training, which helped him in his future career.
Jane Smith — Gwen Stefani
Popular singer Gwen Stefani is a truly versatile person. She almost landed the lead role in Mr. & Mrs. Smith. Stefani went to quite a few auditions, but eventually, she made a choice in favor of a musical career. And Jane Smith was played by the amazing Angelina Jolie.
Indiana Jones — Tom Selleck
The actor almost played the cheerful adventurer. Tom Selleck got the role of Indiana Jones, but by that time, he had already signed on for the Magnum, P.I. TV series, and the producers didn’t allow him to combine the 2 projects.
Prince Caspian — Nicholas Hoult
According to the actor, auditions for the role of Prince Caspian were the worst in his career. Nicholas Hoult was asked to speak with a Hispanic accent, like Puss in Boots from Shrek. Holt was embarrassed by this request because he wasn’t prepared for it. Eventually, the role went to British actor Ben Barnes, who was the perfect fit.
Viola De Lesseps — Kate Winslet
After the resounding success of Titanic, Kate Winslet received many offers from different film directors. She was invited to take part in Shakespeare in Love, but the actress refused because she wanted to work on more independent projects. Eventually, Gwyneth Paltrow landed the role. And she made the right choice, as she was awarded an Oscar for her performance.
Alex Munday — Angelina Jolie
We know from Angelina Jolie’s filmography that she loves to take part in action flicks. But still, there was a similar project the actress rejected. Drew Barrymore and Cameron Diaz did their best to convince Jolie to play their partner but to no avail.
Jolie felt she wasn’t right for this role and later explained her refusal: “I’m not at that point in my career, so audiences won’t have as much fun watching me run around in high heels chasing bad guys and flipping my hair.”
Patrick Bateman — Johnny Depp
Initially, American Psycho was supposed to be directed by Stuart Gordon. The director saw only Johnny Depp in the main role and persuaded him to take it. But the author of the novel abruptly changed his mind. He pulled Stuart Gordon’s rights to the book and called Johnny Depp a lightweight actor who was too old to play the part. Depp was 28 at the time.
Christian Grey — Charlie Hunnam
In 2013, all the newspapers announced the news of the year: Charlie Hunnam would star in the screen adaptation of Fifty Shades of Grey. But a few months later, the actor changed his mind and refused the role. As it turned out, Hunnam had a nervous breakdown due to his busy work schedule.
The actor realized that he wouldn’t be able to do his job properly, but this decision was very difficult for him. Hunnam hasn’t seen any of the films in the trilogy because he called that situation “the worst professional experience” of his life.
Do you think the actors from our article would have been more convincing in these roles? Share your opinion in the comments below.
Preview photo credit Game of Trones / HBO, Jordan Strauss / Invision / AP / East News
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