The efficiency of Lean at work in the Nagpur Metro
RAILWAYS & METRO RAIL

The efficiency of Lean at work in the Nagpur Metro

Nagpur Metro Phase 1 consisted of two corridors, North-South and East-West, with a total length of 41.7 km. Of this, 17.087 km (41 per cent of the viaduct) was awarded to Afcons in the Reach 2 (North-South corridor) and Reach 3 (East-West corridor) stretches. Afcons executed the Reach 2 package in the North-South corridor, which consists of a 5-km double-decker structure and 1.7-km metro viaduct structure that starts from Automotive Square on Kamptee Road and ends at Sitabuldi.

The double-decker flyover structure consists of two decks: flyover level and metro level. The decks are constructed with precast segments. The flyover level consists of two segments: spine and wings. The team adopted Value Stream Mapping (VSM) to improve the cycle time by ~50 per cent, from 28 days to 14 days. Some key interventions were:

  • Improvement in sequence of construction operations allowing for simultaneously launching wing segments and launcher (after erection of three cantilever arms)
  • Analysis of idle time to optimise use of trailers for transportation of both segments and wings
  • Simultaneous operations for wings alignment, shutter fixing and rebar fixing
  • Minimising time at site operations through use of boom placer instead of stationary pump and higher grade of concrete
  • Use of manlift for stressing to decouple working site and ground traffic.

Nagpur Metro Phase 1 consisted of two corridors, North-South and East-West, with a total length of 41.7 km. Of this, 17.087 km (41 per cent of the viaduct) was awarded to Afcons in the Reach 2 (North-South corridor) and Reach 3 (East-West corridor) stretches. Afcons executed the Reach 2 package in the North-South corridor, which consists of a 5-km double-decker structure and 1.7-km metro viaduct structure that starts from Automotive Square on Kamptee Road and ends at Sitabuldi. The double-decker flyover structure consists of two decks: flyover level and metro level. The decks are constructed with precast segments. The flyover level consists of two segments: spine and wings. The team adopted Value Stream Mapping (VSM) to improve the cycle time by ~50 per cent, from 28 days to 14 days. Some key interventions were: Improvement in sequence of construction operations allowing for simultaneously launching wing segments and launcher (after erection of three cantilever arms)Analysis of idle time to optimise use of trailers for transportation of both segments and wingsSimultaneous operations for wings alignment, shutter fixing and rebar fixingMinimising time at site operations through use of boom placer instead of stationary pump and higher grade of concreteUse of manlift for stressing to decouple working site and ground traffic.

Next Story
Resources

RentenPe and Mygate Partner to Transform Rent Payments in India

Through a strategic partnership, RentenPe and Mygate aim to streamline rent payments and promote financial inclusion by enabling rent-based credit scores for Indian renters. RentenPe, India’s first Rent Credit Score™ platform and a pioneer in rental fintech innovation, has entered a significant alliance with Mygate, the leading community management app in the country. This partnership will transform rent transactions for millions of Indian households by embedding RentenPe’s payment and rent credit scoring technology directly within the Mygate app. With this integration, all ren..

Next Story
Real Estate

Supreme Unveils New Brand Identity to Elevate Lifestyle

Supreme, a respected name in Indian real estate with a four-decade legacy, has announced a complete rebranding. The move includes the launch of a new logo and a revamped website, both reflecting the group’s refreshed vision to ‘Elevate Lifestyle’. This brand transformation represents more than a visual refresh—it marks a strategic shift in the company’s mission, visual identity and market positioning. The update will be visible across all of Supreme’s digital, social and offline communication platforms. At the core of the initiative is a renewed focus on purposeful design..

Next Story
Infrastructure Urban

Capri Loans Launches #TarrakiKeHaath Campaign Honouring India’s Everyday Heroes

Capri Global Capital Ltd (Capri Loans), a leading non-banking financial company, has unveiled its latest brand campaign, #TarrakiKeHaath, a powerful tribute to the everyday hands that build India — from kirana store owners and taxi drivers to dhaba workers, tailors, and carpenters. Narrated by Capri Loans’ long-standing brand ambassador and acclaimed actor Pankaj Tripathi, the campaign celebrates the dignity, resilience, and aspirations of self-employed individuals and small business owners who form the backbone of Bharat’s economy. Conceptualized by Rediffusion Brand Solutions, the..

Advertisement

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Advertisement

Talk to us?