Captis enables simple digitisation of traditional monitoring and measurement processes, operating where others cannot – at the far edge. Read more
Founded in March 2000 by Derel and Sue Wust, 4Tel is a family owned business that has grown exponentially in the past 20 years.
Originally starting out as a telecommunication consultancy, 4Tel has evolved to be a multifunctional software and hardware business, with multiple engagements in Australia and internationally. With over 20 years in the military, Derel has grown his vision into a business that employees over 50 staff.
Throughout the years, Derel, alongside the management team of Tony Crosby, Mark Wood, Graham Hjort, and with the recent addition of Joanne Wust as CEO, has expanded 4Tel into sectors such as heavy rail (above and below rail operators), light rail, ports, ferries, mines, coaches/buses, and government transport agencies. With the expansion into different sectors, 4Tel’s suite of software has expanded immensely.
With the commissioning of 4Trak in 2008, 4Tel’s began a goal of creating software that would reinvent the way companies track and receive live transport information. This software has enhanced productivity for major organisations across Australia and created a market need for a software that the industry now relies on. The network-wide situational awareness provided by 4Trak gives teams the ability to optimise operational decisions faster, with greater accuracy and simplified communication paths to remotely located assets and personnel. Knowing the real-time location of trains, vehicles, and staff in the rail corridor allows operations staff to monitor delays and issues for better management and customer service delivery. Using data collected from 4Trak, the business has continued to create and expand their software suite.
4Tel’s overall goal is to protect people and assets, and this has led to a suite of innovative software solutions. This includes, 4PTW (ETW and eTap), a trackwork safety application that improves the safety, efficiency, and effectiveness of track maintenance activities. 4Port, a software application that enables operators to monitor and record large sets of data regarding truck movements and container lifts for stevedoring operations. 4PIDS, which is 4Tel’s implementation of passenger information displays. 4Site, an application that monitors the status of remote field equipment. 4ASW, a positive train control system that uses GPS location-based precision, suited to areas with vital field infrastructure. 4WPS a worksite protection solution using real-time location data of trains, Protection Officers, and track machines to create a virtual geo-worksite boundary to alert workers of approaching trains. 4Trip, a comprehensive train planning software solution for managing the development and release of service timetables, including the planning of work on track activities. 4ABS which utilises a MySQL or SQL database and webpages to display access and billing history data for better management of rail network access over an intranet or the internet. 4ASSETS which is used to manage the static information about devices and their maintenance history for better asset control. 4LRMS is a system that is equipped to manage and streamline key components of a modern metropolitan light rail network.
With John Holland Rail successfully obtaining the CRN tender in 2012, 4Tel have played a substantial role in implementing several control systems to further help maintain the 5,800km of track. Significantly, 4Tel has implemented Electronic Authorities into the CRN, which is the digitisation of the paper- based train order authorities. This simplified the system immensely and automated work so the train driver and controller could focus more on keeping people safe. Moving to safety, 4Tel’s proximity reminder system, that utilises the onboard ICE radio, warns a driver of a train or hi-rails of the approaching authority limit to prevent an out of authority event. This safety has been further tightened with the addition of the application ETW.
While these systems have been implemented, 4Tel have designed, constructed and commissioned the operations centre and technologies, all while providing 24/7 onsite technical support.
The next step for 4Tel will be delving into artificial intelligence. 4Tel’s Horus system is an Advanced Driver Advisory System (ADAS) using real-time sensors and software to assist a driver in the safe operation of a locomotive. Horus proves the functionality to apply software processes to conduct the computationally intensive algorithms for object detection, localisation, awareness, dynamics, and route monitoring. 4Tel’s Horus can be used by above rail operators to assist in safely moving their people and assets across the multiple open networks of Australia.
The system can uniquely incorporate all the train running information (run ID, braking profile, authority limits, speed, location, signal info, etc.), with the day of operational information from the network (speed limits, Conditions Affecting Network, work-on-track activities, etc.). In addition, the Horus machine vision and sensor technology detects abnormal items within the corridor, to alert the driver to an un-safe situation in real-time.
Digital twins have become one of the most talked about topics because of their promise to leverage innovation to improve design, visually enhance collaboration, and increase asset reliability, and performance, explains Meg Davis, senior product marketing manager for the Bentley AssetWise transportation asset management products.
However, rail is a very traditional and safety-sensitive industry, and with the backdrop of owner-operators and project delivery firms needing to work within tighter budgets, shorter deadlines, and with increased legislation, change can be slow and challenging.
While the risks associated with changing a tried-and-true formula weigh heavily on the minds of those responsible, the upside is that the highly complex nature of rail networks and systems allow for the opportunity to innovate and leverage technology to change the way rail networks do business.
Many owner-operators around the world have recognised the potential for digital twins in their work and have begun to explore the opportunities for applying big data analytics, artificial intelligence (AI), and machine learning (ML) throughout the design, construction, operation, and maintenance of rail and transit networks.
What is a digital twin?
A digital twin is a digital representation of a physical asset, process, or system, as well as the engineering information that allows us to understand and model its performance. Plainly stated, a digital twin is a highly detailed digital model that is the counterpart (or twin) of a physical asset. That asset might be anything from a ticket machine or escalator in a station, through track and the switches and crossings within it, to related infrastructure like overpasses or overhead line structures, right up to and including an entire city.
Connected devices and sensors on the physical asset collect data that might relate to condition or performance that can be mapped onto the digital twin to understand how the physical asset is performing in the real world, but also, through analysis or simulation, how it might perform in the future or with a different set of parameters.
Why are digital twins important?
Digital twin technology has existed in industries like manufacturing for many years, driving lean processes, improving performance, and predicting and highlighting components at risk of failure. Additionally, digital twin technology ensures that the lessons learned contribute to design enhancement and are applied to future products and systems. The relevance and influence of digital twins, which span the entire asset lifecycle, are significant when applied to rail infrastructure.
During the planning, design, and construction of a new railway or major upgrade, project digital twins can enable the optimisation of design in line with operational requirements and reduce the risk of delayed or nonconformant construction through simulation. Project digital twins can also improve logistics and communication within the supply chain, which can help maintain the schedule and budget.
During operations, performance digital twins become the most valuable. Owner-operators gain insight when inputs from Internet of Things (IoT) connected devices, such as drones that deliver continuous surveys to provide real-time tracking of asset changes in real-world conditions, add to the digital representation. This transparency helps owner-operators prioritise and improve maintenance or upgrades.
Consequently, the most significant value a rail or transit system can achieve is through the successful implementation of digital twin technology. By using digital twins to plan, design, and build the network, and utilising the digital twin during operations, a rail or transit owner-operator will improve performance and reliability.
With the application of AI and ML, analytics visibility gained from big data can provide insight and immersive digital operations to enhance the effectiveness of operations and maintenance. In this instance, access to performance digital twins might enable staff to anticipate and avoid issues before they arise or improve reaction times to system failures to reduced downtime.
With the application of drones and robots, plus AI-based computer vision, automating inspection tasks via a digital twin experts can conduct inspections remotely, increase productivity, leveraging the value of specialists, and reducing the risk of exposing team members to dangerous environments.
Realising the potential of digital twins
There must be practical solutions for the synchronisation of the physical asset’s changing condition to realise the full potential of digital twins. The timing and scope of this synchronisation is key because certain assets update in near real-time, which can be critical to their reliability. For others, a weekly, monthly, or even annual update on condition may be sufficient. Therefore, it is important that the organisations and professionals involved have a clear strategy when setting the criteria for synchronisation, including which assets should be analysed, when, and by what parameters.
However, merely capturing and representing physical conditions, including IoT inputs, can never be sufficient enough to understand, analyse, or model intended improvements, without also comprehending the digital engineering information used in the project’s or asset’s engineering design and specification.
Digital engineering information is like the “digital DNA” for infrastructure assets. Just as doctors can analyse human DNA to anticipate health issues and personalise care for better health outcomes, project delivery firms can harness digital engineering information to enable collaboration, improve decision making, and deliver better project outcomes.
For owners, leveraging “digital DNA” is all about creating and using digital twins to their full advantage—personalising asset maintenance and maximising asset reliability and uptime. It is about creating an open, connected data environment (CDE) that provides trusted information wherever and whenever it is needed to help design, build, operate, and maintain physical assets. Then, owners will use digital twins to make better decisions, gain more efficiency, and improve performance.
Current networks are the digital twins for future projects
Bentley sees its users advancing digital workflows and using intelligent components, and digital context to improve project delivery and/or enable assets to perform better, every day and all around the world. One organisation achieving these objectives is Maharashtra Metro (Maha Metro) in Nagpur, India.
Maha Metro’s implementation of Bentley’s OpenRail solution uses iModels as its final delivery format due to their ability to provide reliable, long-lasting asset models for reference. The organisation is committed to a full lifecycle approach and has deployed a digital project delivery system with OpenRail’s connected data environment (CDE) at its core and encompassing every phase of the asset lifecycle from planning to performance.
Maha Metro’s CDE is configured to record all data and uses asset tags to link components created with Bentley’s open modelling applications, such as its enterprise resource planning system. Hundreds of thousands of drawings and documents are transacted among approximately 400 users within the CDE currently, providing real-time access to trusted information wherever and whenever it is needed. The expansive CDE also provides data mobility to close communication gaps, speed up design issue resolution and approvals, and achieve millions of US dollars in cost savings.
The digital DNA Maha Metro and its supply chain is creating during design and construction will allow the organisation to manage current, future, and refurbished assets. By ensuring this trusted information remains current and accessible, the organisation’s system will enable strategic decision making, establish condition-based monitoring, and progress toward predictive maintenance strategies that are expected to save at least USD 222 million over 25 years of the railway’s operational life.
It is clear that digital twins are gaining momentum, particularly within organisations that presently have IoT initiatives. The emergent nature of digital twins will require an approach with clear business objectives and an agile approach to experiment and learn from experiences. Just as Maha Metro is setting the agenda and direction for the industry, we at Bentley fully expect to see the use and adoption of digital twins become common place within rail owners and their supply chains.