Dubai Metro hits new milestone in operational excellence

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Dubai Metro has logged more than 16.8 million hours of specialised maintenance work since its inception in 2009, covering carriages, rails and tunnel maintenance.

Managed by the Roads and Transport Authority (RTA), the urban rail service has also achieved a punctuality rate of 99.7 per cent, exceeding international safety benchmarks.

Since its inauguration 14 years ago, Dubai Metro has completed over 1 million km in travel distance, demonstrating high levels of operational sustainability, while maintenance teams have covered 30,000 km on foot during their inspection tours.

Leveraging advanced technology, the RTA has employed specialised apps and systems to streamline maintenance activities, aligning with its ambitious paperless strategy and plans to raise efficiency.

These milestones reaffirm Dubai Metro's commitment to setting global standards in urban transportation.

Specialised management

The RTA has been keen to ensure the highest global standards of maintenance for the metro system.

The process, backed by skilled professionals, and overseen by international experts, is dedicated to preserving the metro's infrastructure, trains, stations and systems.

Over the last 14 years, the RTA has been using cutting-edge technology to raise maintenance efficiency and ensure a seamless and high quality user experience.

Maintenance programmes

The RTA conducts two categories of preventive maintenance: the first, light maintenance conducted every 14 days or quarterly and the second, overhaul (comprehensive) maintenance.

The latter, which involves periodic inspections and overhauling of trains based on mileage, is routinely performed for each train after every 750,000 km.

Each train undergoes a 15-day overhauling process. About 1 million manhours were devoted to meticulously maintain 79 trains and ensure their optimal performance.

A dedicated team of 70 employees conducts maintenance work around the clock. Overhauls are conducted in a fully-equipped workshop located at Al Qusais Depot.

The Dubai Metro's fleet boasts 129 trains, comprising 50 modern units and the initial batch of 79 trains, which have recently undergone maintenance.

With Dubai Metro covering a total of over 1 million km so far, it is currently conducting its second overhaul maintenance, the highest level of an overhaul.

This process involves the inspection and refurbishment of all 14 train systems, encompassing components like the metro carriage systems, gear unit, traction motor, brake system, train door system, pneumatic valves and air conditioning systems.

Rail grinding

Since the metro's inception, overhauling teams have undertaken rail grinding for a combined length of 800 km.

They utilised the world's most sophisticated rail refurbishment equipment, which automatically grinds rails to ensure optimal alignment between rails and train wheels. It prevents potential breaking of rails and extends the lifespan of the train infrastructure.

Additionally, they employed state-of-the-art cameras and laser technology to meticulously scan rail sections and determine the most suitable maintenance system that guarantees smooth train operations.

In doing so, the RTA has seamlessly transitioned to an advanced preventive maintenance system, aligning with one of its core strategic goals of asset sustainability.

Innovation

The RTA has been integrating modern technologies in overhauling the Dubai Metro, using drones to examine and inspect Dubai Metro tunnels extending 14 km on both Red and Green Lines.

Using drones enables a precise and fast inspection of the condition of assets. They come equipped with multiple cameras, including a high-resolution one to monitor the condition of the tunnels.

Infrared technology is utilised to monitor the walls of train tunnels, providing instant reporting on asset conditions and maintenance activities.

This technology seamlessly integrates with the RTA's maintenance management system, offering a digital platform for inspection tasks, which minimises the possibility of human errors.

In addition to the use of (SightCall) technology by First Line Response Teams, which is an augmented reality application on mobile devices that enables experts to obtain instant information remotely to support diagnosis and quick resolution of complex system faults.

Security and safety

The metro network has over 10,000 CCTV cameras to oversee all train facilities, ensuring passenger safety. Throughout the year, meticulous maintenance is conducted on over 2,000 informational screens to guarantee peak performance, assisting passengers on all their journeys.

Unique design

Apart from providing safe and smooth mobility for riders, Dubai Metro represents an iconic addition to the city's urban infrastructure and a major accomplishment.

It features 900 automated fare gates, 548 escalators, 273 elevators, 96 electric walkways, and air-conditioned footbridges, all ensuring a smooth and safe transportation experience.

Building local capacities

The RTA has prioritised the development and training of Emirati engineering and technical talent in train maintenance.

It recruits fresh engineering graduates and equips them with skills through field training, factory tours, and participation in international workshops and conferences. These engineers operate railways, train systems, electrical systems, and Dubai Metro's infrastructure.

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