National Highways has begun a digital revolution, adopting new technologies for road maintenance and operation.
As the world of construction technology evolves, National Highways digital strategy is moving with it.
In September, the roads operator revealed a swathe of new initiatives and systems as part of its new digital roads strategy a plan that includes connected and autonomous vehicles, digital twins and Internet of Things (IoT) sensors.
The strategy has a clear purpose. National Highways chief digital and information officer Victoria Higgin explains the important role of innovation.
Its about keeping up, she says. Making sure were an attractive place to work and we can attract talent. Our mission is connecting the country. We dont want to be behind. We want to push boundaries and lead the way.
We dont want to be behind. We want to push boundaries and lead the way
In addition to this, traditional road maintenance methods present challenges in relation to resources, materials and scheduling and lining all of those up, says Higgin. She adds that completing work efficiently, for example doing several items of work simultaneously, can reduce the impact of roadworks on journeys.
In an ideal world, if youre doing maintenance, youd do everything together but you need visibility of everything to see what needs to be done on the network. You need data, she explains.
National Highways is developing digital twin technology for roads projects
This is where National Highways new strategy comes in. The strategy is outlined on a new website and in a virtual learning environment, which sets out thecompanysDigital Roads 2025 vision.
Between now and 2025, National Highways road works activities will be increasingly automated, modular and conducted off-site, with new initiatives rolled out on the strategic road network each year.
Overall, the vision is structured around three core themes: design and construction, digital operations and digital for customers.
One key innovation under the design and construction theme is the use of digital twins to help with design. Digital technologies are also expected to change construction processes.
Higgin explains: If you want to rehearse a bridge lift, you can do that via your digital twin, so that saves time.
In addition, the strategy involves increasing the use of offsite fabrication and modular construction, along with component standardisation.
This improves safety, reduces carbon emissions and minimises disruption.
Bridges and gantries should just be repeatable patterns apart from having to take into account the environment, Higgin says. Constructing as much as possible off site is good.
Finally, the strategy suggests the use of connected and autonomous plant to be embedded in construction processes, improving efficiency and enhancing safety. Semi-autonomous plant, such as a cone-laying machine, has already been trialled.
The digital operations theme of the strategy involves intelligent asset management. One innovation, for example, is the creation of a digital twin of the road network which can predict when and were potholes will occur and other maintenance issues.
National Highways is developing this system in collaboration with UK Research & Innovation, the Engineering & Physical Sciences Research Council (ESPRC), the European Unions Marie Skodowska-Curie Actions (MSCA) Cofund programme, Costain and the University of Cambridge. It is funded by an 8.6M EPSRC Digital Roads Prosperity Partnership grant and the 6M MSCA Future Roads Fellowships programme.
The system works by combining live data from intelligent materials in an existing road surface with a digital twinning system that visualises the road and its condition. This then identifies when maintenance workis needed.
This is about removing repetitive tasks to repoint human beings to more rewarding areas where we need more brain power
National Highways says the approach will dramatically reduce the need for time consuming and costly on-site inspections, prevent unnecessary delays to drivers and reduce emissions generated by roadworks.
Overall, it will ensure data is available so that teams can look at the road network at any point in time and make decisions.
Knowing when you need to maintain and repair things without having to go out and do continual inspections is important, Higgin says. That also has a safety element because you have fewer people roadside.
When it comes to inspections, the process can be enhanced by technology either Internet of Things (IoT) sensors or camera tech in cars.
If you put sensors onto bridges, for example, or different parts of the road, you can start to pick stuff up without having to do routine maintenance, Higgin says.
The ultimate goal is to be able to do predictive maintenance based on whats coming back from sensors, because you can use your resources in the best way and plan better.
As such, sensor technology will forecast traffic levels, weather and environmental conditions enabling National Highways to pre-emptively prepare for and respond to situations.
Higgin adds that this means humans can be deployed on more complex tasks which are more satisfying work.
She explains: This is about removing repetitive tasks to repoint human beings to more rewarding areas where we need more brain power.
The final theme centres on how National Highways communicates with its customers, before or during journeys.
Ultimately, the roads operator envisages providing its customers with journey information through in-car systems. Deploying connected and autonomous vehicles is expected to drastically improve traffic flow and reduce incidents by up to 90%.
I think if you look to the very future, you will have cars that are connected and autonomous on highways, Higgin says. When I say connected, imagine a world where signage and signals are transmitted directly into your cars and even where we can send messages to people in their cars. Thats our aspiration.
Digital technology could mean that road information is sent to drivers digitally
This connectivity will also enable National Highways to receive better quality data from customers, which in turn informs decision making.
Its not just about providing data to drivers but also what data can we take information about journeys, for example, and how can we optimise them, Higgin explains. If we get the intelligence from that data, how do we run the network better?
When is it best to do maintenance? What technology can we use to make it last for shorter periods of time? How can we predict rather than wait for something to be broken?
National Highways ambitions include freight platooning driving a group of vehicles together and the personalised in-vehicle messaging, as well as vehicles sharing data and decluttered roads free from signage. As such, the vision for digital roads looksforward to2050 and beyond.
The three core themes of National Highways Digital Roads 2025 strategy are as follows:
Design and Construction
Digital operations
Digital for customers
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