Metro Gets Up To Speed With Internet Of Things For Smoother Phase-IV Ops | Delhi News

New Delhi: The Delhi Metro Rail Corporation is known for introducing the national capital, and even the rest of the country, to the best global practices when it comes to construction site management. For its ongoing Phase-IV project, the corporation is, for the first time, using “Internet of Things” (IOT) – a web of construction plants and machinery interconnected over the internet through devices like GPS, sensors, QR codes, data loggers, CCTV and drone cameras, etc.
When DMRC first started work around two-and-a-half decades ago, the sight of construction sites hidden behind barricades, tyres of trucks carrying construction materials being washed to avoid dust flying off, marshals guiding traffic, etc., were a novelty for most Delhiites. The standards set by DMRC have become the norm now. For the construction of its Phase-IV project, DMRC has decided to move many steps ahead.
A DMRC official said apart from efficiency and on-time completion of construction work, an important aim of adopting IOT in the Phase-IV project was the safety of not only workers and DMRC employees but also motorists who travelled near the construction sites.
For instance, all cranes being used at Phase-IV construction sites have “Data Loggers”, which are compact, battery-powered devices with sensors, microprocessor and data storage. The data logger in cranes being used by DMRC also comes with an alert facility through SMS and web.
“It gives an alert on any malfunctioning or tampering with its Automatic Safe Load Indicator and also sends out an SMS,” the official said, adding that the data was recorded in its storage drive. Overloading beyond a crane’s capacity can lead to major accidents and the alert through data loggers help avoid that.
The official said that both fixed CCTV cameras and Pan-Tilt-Zoom cameras, with at least one-week backup, were being used at all construction sites. “This helps in monitoring construction sites and also has a live view of all areas of work sites,” he said.
“We are carrying out monitoring of construction sites through drones as they give access to site conditions all along the corridor, especially where we can’t provide CCTV cameras like over waterbodies, rivers, launching girders, gantries, etc.,” he said.
For the first time, DMRC is using QR codes on all its plant and machinery, apart from lifting tools and tackles, electrical distribution boxes, etc. “It facilitates quick access to all papers pertaining to plant and machinery like registration documents, PUC certificates, operator competency, etc. This also contributes to the initiative of paperless work,” he said.
DMRC was also carrying out GPS monitoring of all construction plants and machinery, the official said. “Live monitoring of construction plant and machinery gives clear information on its speed, halts, approved route, etc.,” he said.
The corporation had installed speed governor in all construction-related vehicles so that they didn’t speed beyond a predefined and preset threshold, he said. “Also, all vehicles have rear-view cameras to give a clear visibility through a display screen in the operator cabin while reversing,” he said.
“There is also a provision of Lateral and Rear Under Protection Devices (RUPD and LUPD) in construction vehicles,” he said. These devices prevent any accidental entanglement of a vehicle from the rear and lateral side if the other vehicle loses control over movement and prevents serious injuries to occupants of such vehicles.
Apart from these, DMRC continues to use ‘three-layer protection’ at road diversions, which include traffic cones, PVC crash barriers, and then concrete barriers. “We create dedicated paths for road users, use retro reflective tapes, ‘work in progress’ signage, barricade board illumination through rope light and stand or pole light etc.,” he said.


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