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Blue Line (Namma Metro)
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Blue Line (Namma Metro)
The Blue Line is part of the Namma Metro rail network for the city of Bangalore, Karnataka, India. It consists of two sections - Phase-2A (Central Silk Board to Krishnarajapura) and Phase-2B (Krishnarajapura to Airport). Construction of Phase-2A began in August 2021. Construction of Phase-2B began in February 2022. The 58.19 km line connects Central Silk Board with the Kempegowda International Airport. The Line is mostly elevated but also has 2 at-grade (surface) sections, at the AFS Yelahanka Campus Bengaluru, and the Airport City station, and also has 1 underground section - at the KIA Terminals . There are 30 stations on the line of which 28 are elevated, 1 is at grade, and 1 is underground - making it the second line, after Purple Line, in the Namma Metro system to contain all 3 station types. The Blue Line will have interchanges with the Yellow Line at Central Silk Board, Purple Line at Krishnarajapura, Pink Line at Nagawara and a planned interchange with the proposed Orange Line at Hebbal.
In June 2022, the BMRCL launched the first ever U Girder span on ORR-Airport metro line. The extension of the Purple Line and construction of the Yellow Line is completed and operational, where Construction of Pink Line is currently under progress. The Pink, Yellow and Blue lines will be CBTC-signaling enabled, unlike Namma Metro's first two lines (Purple and Green lines use distance-signaling). In June 2023, the Deputy Chief Minister of Karnataka D. K. Shivakumar informed that Metro line to Kempegowda International Airport will be completed by June 2026, plus or minus 3 months.
The routes under Phase-2A and Phase-2B (Blue Line) were at first considered a part of the Phase-3 of metro development, but were prioritized under Phase-2, as the Central Government requested BMRCL to begin work on the airport link as early as February 2012.
The route from Central Silkboard to K R Pura along the eastern part of Outer Ring Road (ORR) was included as Phase-2A since development on that part of ORR had leap-frogged much ahead of the rest of the city with huge number of new office buildings. As a result, traffic increased several fold with employees traveling from different parts of the city to this new CBD. Chief Minister of Karnataka, Siddaramaiah announced in September 2016 that a new 18 km (11.2 mi) line connecting Central Silk Board with KR Pura along ORR would be included in Phase 2 as Phase-2A of the project at an estimated cost of ₹4202 crores.
Kempegowda International Airport (opened during May 2008) being very far from city center (about 35 km), commuting time by road in traffic congestion is time-consuming. Hence, attention for building a fast mass transit was in the minds of planners from the very beginning, especially since air traffic had kept increasing. The old airport in Bengaluru, the HAL Airport, located well within the city, had closed for commercial operations as part of the terms of the PPP for the new airport.
To connect airport to city, there had initially been a proposal to build a 33 km (21 mi) high speed rail line from MG Road to Kempegowda International Airport (KIA). Cost was estimated at ₹5,767 crore (US$810 million). This was to be executed by an independent SPV - Bangalore Airport Rail Link Limited (BARLL). However, the plan for an exclusive city-airport high speed rail was canceled during October 2013 due to high cost and viability concerns.
It was decided that BMRCL would manage the airport rail project and a regular metro line with fewer halts would be built instead of a high speed rail. Following this, suggestions were invited from public during September 2016 to choose any one of nine possible extension routes from existing and proposed metro lines to the airport. The proposed extension routes had an average length of 30 km (19 mi), and cost estimates ranged between ₹4,500 crore and ₹7,000 crore. A 25.9 km (16.1 mi) extension from Nagawara via Kannur and Bagaluru was the shortest, while the 35.4 km (22.0 mi) extension from Yeshwanthpur via Yelahanka, Kannur and Bagaluru was the longest of the proposed routes. BMRC received 1,300 responses from the public. The shortest (25.9 km, 16.1 mi) extension of the Kalena Agrahara (previously Gottigere) – Nagawara line via Kannur and Bagaluru to the airport emerged as the most popular choice. In February 2017, the Centre requested BMRC to start work on the airport link before Phase 3. Thus, the Airport Line was included in Phase 2 as Phase 2B.
Since the airport's managing company, Bengaluru International Airport Limited (BIAL) forbade underground construction from the southern side of the airport due to security concerns as it would have to pass beneath the airport's second runway, the shortest route options (i.e. extending the Pink line from Nagawara directly north) were eliminated. An alternate route proceeding north till RK Hegde Nagar and then turning west to Jakkur and then along Airport Road was explored. Bangalore Development Minister K. J. George announced on 12 May 2017 that the government had finalized the Nagawara—Ramakrishna Hegde Nagar—Jakkur—Yelahanka route to the airport. However, this route had an obstacle as a high-pressure petroleum pipeline was passing through the originally proposed route.
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Blue Line (Namma Metro)
The Blue Line is part of the Namma Metro rail network for the city of Bangalore, Karnataka, India. It consists of two sections - Phase-2A (Central Silk Board to Krishnarajapura) and Phase-2B (Krishnarajapura to Airport). Construction of Phase-2A began in August 2021. Construction of Phase-2B began in February 2022. The 58.19 km line connects Central Silk Board with the Kempegowda International Airport. The Line is mostly elevated but also has 2 at-grade (surface) sections, at the AFS Yelahanka Campus Bengaluru, and the Airport City station, and also has 1 underground section - at the KIA Terminals . There are 30 stations on the line of which 28 are elevated, 1 is at grade, and 1 is underground - making it the second line, after Purple Line, in the Namma Metro system to contain all 3 station types. The Blue Line will have interchanges with the Yellow Line at Central Silk Board, Purple Line at Krishnarajapura, Pink Line at Nagawara and a planned interchange with the proposed Orange Line at Hebbal.
In June 2022, the BMRCL launched the first ever U Girder span on ORR-Airport metro line. The extension of the Purple Line and construction of the Yellow Line is completed and operational, where Construction of Pink Line is currently under progress. The Pink, Yellow and Blue lines will be CBTC-signaling enabled, unlike Namma Metro's first two lines (Purple and Green lines use distance-signaling). In June 2023, the Deputy Chief Minister of Karnataka D. K. Shivakumar informed that Metro line to Kempegowda International Airport will be completed by June 2026, plus or minus 3 months.
The routes under Phase-2A and Phase-2B (Blue Line) were at first considered a part of the Phase-3 of metro development, but were prioritized under Phase-2, as the Central Government requested BMRCL to begin work on the airport link as early as February 2012.
The route from Central Silkboard to K R Pura along the eastern part of Outer Ring Road (ORR) was included as Phase-2A since development on that part of ORR had leap-frogged much ahead of the rest of the city with huge number of new office buildings. As a result, traffic increased several fold with employees traveling from different parts of the city to this new CBD. Chief Minister of Karnataka, Siddaramaiah announced in September 2016 that a new 18 km (11.2 mi) line connecting Central Silk Board with KR Pura along ORR would be included in Phase 2 as Phase-2A of the project at an estimated cost of ₹4202 crores.
Kempegowda International Airport (opened during May 2008) being very far from city center (about 35 km), commuting time by road in traffic congestion is time-consuming. Hence, attention for building a fast mass transit was in the minds of planners from the very beginning, especially since air traffic had kept increasing. The old airport in Bengaluru, the HAL Airport, located well within the city, had closed for commercial operations as part of the terms of the PPP for the new airport.
To connect airport to city, there had initially been a proposal to build a 33 km (21 mi) high speed rail line from MG Road to Kempegowda International Airport (KIA). Cost was estimated at ₹5,767 crore (US$810 million). This was to be executed by an independent SPV - Bangalore Airport Rail Link Limited (BARLL). However, the plan for an exclusive city-airport high speed rail was canceled during October 2013 due to high cost and viability concerns.
It was decided that BMRCL would manage the airport rail project and a regular metro line with fewer halts would be built instead of a high speed rail. Following this, suggestions were invited from public during September 2016 to choose any one of nine possible extension routes from existing and proposed metro lines to the airport. The proposed extension routes had an average length of 30 km (19 mi), and cost estimates ranged between ₹4,500 crore and ₹7,000 crore. A 25.9 km (16.1 mi) extension from Nagawara via Kannur and Bagaluru was the shortest, while the 35.4 km (22.0 mi) extension from Yeshwanthpur via Yelahanka, Kannur and Bagaluru was the longest of the proposed routes. BMRC received 1,300 responses from the public. The shortest (25.9 km, 16.1 mi) extension of the Kalena Agrahara (previously Gottigere) – Nagawara line via Kannur and Bagaluru to the airport emerged as the most popular choice. In February 2017, the Centre requested BMRC to start work on the airport link before Phase 3. Thus, the Airport Line was included in Phase 2 as Phase 2B.
Since the airport's managing company, Bengaluru International Airport Limited (BIAL) forbade underground construction from the southern side of the airport due to security concerns as it would have to pass beneath the airport's second runway, the shortest route options (i.e. extending the Pink line from Nagawara directly north) were eliminated. An alternate route proceeding north till RK Hegde Nagar and then turning west to Jakkur and then along Airport Road was explored. Bangalore Development Minister K. J. George announced on 12 May 2017 that the government had finalized the Nagawara—Ramakrishna Hegde Nagar—Jakkur—Yelahanka route to the airport. However, this route had an obstacle as a high-pressure petroleum pipeline was passing through the originally proposed route.
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