infrastructure
Using cameras on transit buses to monitor traffic conditions
Newswise — COLUMBUS, Ohio – Researchers have proposed a novel method for counting and tracking vehicles on public roads, a development that could enhance current traffic systems and help travelers get to their destinations faster.
Using the cameras already installed on campus buses at The Ohio State University, researchers demonstrated that they could automatically and accurately measure counts of vehicles on urban roadways, could detect objects in the road, and could distinguish parked vehicles from those that are moving.
In previous studies, Ohio State researchers found that using these mobile cameras provides much better spatial and temporal coverage than relying on sparsely and often temporarily placed sensors that don’t provide a view of many streets and roads in a city.
“If we collect and process more comprehensive high-resolution spatial information about what’s happening on the roads, then planners could better understand changes in demand, effectively improving efficiency in the broader transportation system,” said Keith Redmill, lead author of the study and a research associate professor of electrical and computer engineering at Ohio State.
Whereas researchers previously used human observers to manually identify the vehicles in the videos, this study, published in the journal Sensors, automates the process using AI.
According to co-authors of the study Mark McCord and Rabi Mishalani, both professors of civil, environmental and geodetic engineering at Ohio State, their team chose to utilize the traffic cameras on the Campus Area Bus Service partly because Ohio State’s large, interconnected campus resembles a small city and their relationship with CABS operators gave them ready access to the collected videos.
“Sharing access to our bus cameras for traffic monitoring is a great example of how university operations can support research and learning,” said Tom Holman, Ohio State’s director of Transportation and Traffic Management. “We are happy to share existing resources that can generate helpful data for long-term traffic planning purposes on campus and beyond.”
But what sets this study apart from similar traffic-related studies is that it utilizes available resources at no extra cost: bus cameras that have already been installed for other safety and security purposes. This allows it to be easily integrated into how other cities manage their traffic monitoring, said Mishalani.
“If we can measure traffic in a way that is as good or better than what is conventionally done with fixed sensors, then we will have created something incredibly useful extremely cheaply,” he said. “Our goal is to start building a system that could do this without much manual intervention because if you want to collect this information over lots of potential vehicles and lots of time, it’s worth fully automating that process.”
The system works by utilizing a state-of-the-art 2D deep learning model called YOLOv4 to automatically detect and track objects. The program is also uniquely adept at recognizing multiple objects in a single image frame, said Redmill.
While still a long way from total implementation, the study suggests the system’s results bear promise for the future of intelligent traffic surveillance. For example, besides counting vehicles, their algorithm is also able to project real-world bird’s-eye-view coordinates of the road network by taking advantage of streams of images, GNSS measurements, and regional information from 2D maps. It’s so precise, the system was also able to detect if the bus veered off from its planned route – and then report it to a map database that logs detailed information about the roadways, said Redmill, who is also a member of Ohio State’s Control and Intelligent Transportations Research Lab (CITR).
With widespread deployment and integration of their proposed approach, the vast collection and complete automation of processing of this data over time would allow for more effective planning, designing and operation of roadways to mitigate heavy traffic across the country.
As for the benefits the public might see, such advancements in traffic surveillance could mean reduced travel times and greater travel choices when trying to get from point A to point B.
“Transportation planners, engineers and operators make vital decisions about the future of our roadways, so when designing transportation systems to work over the next 30 to 50 years, it’s imperative that we give them data that allows them to improve the efficiency of the system and the level of service provided to travelers,” said Mishalani.
The research was supported by the United States Department of Transportation’s Mobility21 University Transportation Center program. Other co-authors are Ekim Yurtsever and Benjamin Coifman, both of Ohio State.
Journal Link: SensorsREQUEST AN EXPERT
Source: Ohio State University
In a significant milestone for the nation’s first high-speed rail project, the California High-Speed Rail Authority (Authority) announced that it has successfully created over 13,000 construction jobs since 2015. This accomplishment not only signifies progress for the ambitious high-speed rail system but also highlights the positive impact it has had on the local Californian workforce.
Central Valley Takes the Lead:
With over 70 percent of these jobs going to residents of California’s Central Valley, the project has played a vital role in providing employment opportunities for individuals in the region. It is worth acknowledging the efforts of nearly 1,400 workers dispatched each day to various high-speed rail construction sites. These jobs have injected economic vitality and growth into communities across the Central Valley.
Regional Breakdown:
- Fresno County: 4,222 jobs
- Kern County: 2,538 jobs
- Tulare County: 1,282 jobs
- Madera County: 580 jobs
- Kings County: 462 jobs
- Merced County: 189 jobs
- Remaining California Counties: 3,387 jobs
- Out-of-State: 369 jobs
A Decade of Strong Partnerships:
The Authority has had a longstanding partnership with the California State Building Trades, which has facilitated the creation of thousands of good-paying union jobs. Notably, during the past five years alone, over 10,000 construction positions have been generated through these collaborative efforts. Moreover, a significant focus has been placed on directing employment opportunities towards individuals from disadvantaged communities, further promoting inclusivity and economic upliftment.
California Jobs First Council:
To bolster job creation even further and ensure economic prosperity for all Californians, the California Jobs First Council was established. This council aims to align economic resources, expedite job creation, and enhance opportunities throughout the state. With particular focus on the Central San Joaquin Valley, this initiative serves as an impetus for creating more jobs, rapidly, in every community.
Future Expansion and Construction Progress:
Looking ahead, the Authority is resolute in extending the current 119-mile high-speed rail network to span 171 miles, reaching from Merced to Bakersfield. The construction has already commenced on this expansion project. Presently, more than 25 dynamic construction sites are active within the Central Valley. As a testament to its commitment to environmental stewardship, the Authority has obtained full environmental clearance for 422 miles of the high-speed rail program, stretching from the Bay Area to Los Angeles County.
Stay Updated:
For the latest developments and information about the high-speed rail construction, interested individuals are encouraged to visit the official website: www.buildhsr.com. On the website, visitors can access recent videos, animations, photographs, press center resources, and the latest renderings of the project. All files are available for free use, courtesy of the California High-Speed Rail Authority.
The California High-Speed Rail Authority’s achievement of surpassing 13,000 construction jobs is undoubtedly a cause for celebration. By focusing on job creation and prioritizing the local workforce, this landmark project is making a positive difference in the lives of Californians, particularly those in the Central Valley. With continued progress and future expansions, the California High-Speed Rail project not only brings efficient transportation but also provides a substantial economic boost that benefits communities and individuals alike.
Source: California High-Speed Rail Authority
What is California High-Speed Rail?
The California High-Speed Rail (CAHSR) is a state-funded project led by the California High-Speed Rail Authority. Currently under construction, Phase 1 is planned to cover 494 miles from San Francisco to Los Angeles, passing through the Central Valley. There are plans for Phase 2, which would extend the system to Sacramento and San Diego, totaling 776 miles. Authorized by a 2008 ballot, this ambitious project aims to connect major urban areas, significantly reducing travel times. The goal for Phase 1 is to achieve a travel time of 2 hours and 40 minutes between San Francisco and Los Angeles, a vast improvement from the existing Amtrak service, which takes around nine hours.
Construction of Phase 1 began in the Central Valley back in 2015. The project is being built in sections due to limited funding. The state aims to complete a 171-mile (275 km) long Initial Operating Segment (IOS) connecting Merced and Bakersfield by 2024. The IOS is expected to begin its revenue service as a self-contained high-speed rail system between 2030-2033, at an estimated cost of $28–35 billion. CAHSR trains running along this section would be the fastest in the Americas, with a top speed of 220 mph (350 km/h).
Between January 2015 and December 2023, a whopping amount of $11.2 billion was spent on the IOS project, which includes 119 miles (192 km) currently under construction, alongside upgrades to the existing rail lines in the San Francisco Bay Area and Greater Los Angeles. The plan is that Phase 1 will share tracks with conventional passenger trains. However, the Authority has not yet secured funding to connect the Central Valley section with either the Bay Area or Los Angeles, which involves crossing several major mountain passes. As of 2024, it is estimated that Phase 1 will cost a total of $106.2 billion.n.
Supporters of the California High-Speed Rail project emphasize the potential benefits it offers, including the reduction of air traffic and highway congestion, decreased pollution and greenhouse gas emissions, and the promotion of economic growth by connecting inland regions to coastal cities. However, opponents argue that the project is too expensive and advocate for directing funds to other transportation or infrastructure initiatives. The choice of route and the decision to initiate construction in the Central Valley, rather than more densely populated areas, have been points of contention. The project has encountered notable challenges such as delays and cost overruns due to management issues, legal disputes, and a lack of complete funding commitment.
https://en.wikipedia.org/wiki/California_High-Speed_Rail#
https://stmdailynews.com/category/the-bridge/urbanism/
STM Blog
Riding the Rails to a Sustainable Future: The Rise of High-Speed Rail in the U.S.
High-speed rail in the U.S. offers a sustainable, faster, and comfortable alternative to flying and driving, significantly reducing carbon emissions.
In a world where environmental sustainability and efficient transportation are becoming increasingly critical, the United States is making strides towards a faster and greener future with the expansion of high-speed rail networks. While the U.S. may have lagged behind other countries in this area, promising developments such as the Brightline West project in the Southwest, the Texas line connecting major cities, and the Northwest corridor linking bustling urban centers are paving the way for a new era of travel.
High-speed rail presents a compelling alternative to traditional modes of transportation. With trains reaching speeds of up to 200 mph, these systems offer a comfortable, cost-effective, and time-efficient way to travel. Compared to flying, high-speed rail eliminates the hassles of airport security checks and long wait times, while surpassing the speed of driving without the stress of being behind the wheel. Passengers can unwind, be productive, or simply enjoy the journey, making it a holistic travel experience.
Beyond the convenience and comfort it offers, high-speed rail holds immense promise in reducing carbon emissions and combating climate change. The potential environmental impact of projects like the Brightline West is staggering, with estimates suggesting that millions of cars could be taken off the road, significantly curbing carbon pollution. Given the alarming statistics on the environmental cost of traditional transportation, transitioning to high-speed rail is a crucial step towards mitigating the harmful effects of climate change.
The urgency of addressing climate change cannot be overstated. The emissions released from burning fossil fuels are driving global warming at an alarming rate, leading to catastrophic consequences such as extreme weather events and environmental degradation. By opting for public transportation like high-speed rail, individuals can contribute to cooling down the planet and reducing their carbon footprint. Additionally, embracing sustainable modes of travel such as walking and biking not only promotes environmental conservation but also enhances personal health and well-being.
As the U.S. accelerates its efforts to embrace high-speed rail and other eco-friendly transportation options, we are moving closer to a future where sustainability and efficiency go hand in hand. By choosing to ride the rails, we are not only embarking on exciting journeys but also taking meaningful steps towards a cleaner, greener planet for generations to come.
If you are interested about high speed rail in America, check out these articles:
https://en.wikipedia.org/wiki/Acela
https://en.wikipedia.org/wiki/Brightline
https://en.wikipedia.org/wiki/High-speed_rail_in_the_United_States
Blog
Progress and Setbacks: Amtrak’s Journey Towards High-Speed Trains in the Northeast Corridor
After years of delays and setbacks, Amtrak is nearing the introduction of new high-speed trains in the Northeast Corridor, promising faster travel.
After years of challenges and setbacks, Amtrak is edging closer to introducing new high-speed trains to the bustling Northeast Corridor. Following a series of delays and rigorous safety and design disputes, the new trains have finally received clearance from the Federal Railroad Administration to commence track testing along the route from Washington, D.C., to Boston.
The Avelia Liberty trains, with a price tag of about $1.6 billion, are set to replace the aging Acela fleet. Promising a maximum speed of 160 miles per hour and increased passenger capacity, these sleek red, white, and blue trains are expected to offer a faster and smoother ride, featuring enhanced tilt technology for navigating curves.
However, the project has been plagued by setbacks, with the trains now three years behind schedule. Despite initial hopes for a 2024 launch, the exact date for passenger service remains uncertain. The challenges have included issues with computer modeling, delays in train delivery, and the need for significant repairs and upgrades to the Northeast Corridor tracks.
Amid these challenges, Amtrak has spent over $48 million on maintaining the outdated Acela trains. The journey towards high-speed rail in the Northeast has been a bumpy one, marked by unanticipated obstacles and contractual oversights. Nevertheless, as Amtrak and Alstom move forward with on-track testing, stakeholders are hopeful that the identified problems will pave the way for a smoother testing phase and eventual passenger service.
As the saga continues, the industry will keenly observe how these new trains perform on the Northeast Corridor, with a collective hope that this technological leap will ultimately redefine travel on one of America’s busiest rail corridors.
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