Namma metro Bengaluru services disrupted

Namma metro Bengaluru services disrupted

Namma Metro – Honeycomb problem: passengers who commute every day using metro purple line were inconvenienced due to ‘Honeycomb’ near Trinity Metro station.

Namma Metro services between Indiranagar and MG Road were suspended for about three hours on 12th December 2018 morning.  The cause was due to a concrete girder which had come out slightly off the beam near Trinity metro station.

The engineers of BMRCL have temporarily fixed faults in metro structures that developed due to what is technically called ‘honeycomb’ formation near Trinity circle metro station.

Honeycomb formation – Namma Metro

‘Honeycomb’ form in concrete due to imbalances in materials used while constructing.  It may also be due to poor cement to water ratio, improper placement of reinforcement bars in the horizontal and vertical beams of the pillars.

NAmma Metro pillar 155

The cause for ‘honeycomb’ formation may also be due to steel or iron bars not placed properly after concrete is poured or use of substandard materials.

The BMRCL detected a structural flaw in one of the viaducts.  The problem was not only the honeycomb formation.  At pillar No.155 the slider, also known as the concrete slabs which are supported by a pillar had shifted from its original position.

The BMRCL authorities have asked the engineers to concretize the slider.  As a temporary measure, a metal jack has been kept next to the pillar to support the slider.

Delay in the trip of Namma Metro

The BMRCL said that the delay was due to technical difficulties.  The honeycomb was formed under the metro tracks on Pillar no,155.  Speed restrictions were imposed.  The affected area was barricaded.

The repair work will continue for 3 days.

Public Opinion on Namma metro problem

The Bengaluru commuters are of the opinion that it may happen at any metro lane in the city.  The contractor should be sent to jail. The BMRCL officials who supervised the work and cleared the bills should be terminated.

Previously it was problems with roads, traffic, pollution, flooding and now even namma metro has gone the same way.

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Vehicle population – choking Bengaluru city

Vehicle population – choking Bengaluru city

Vehicle population is choking Bengaluru city with vehicles crossing approx. 80 lakh mark.  It is a huge leap from 31 lakh vehicles in 2008.

Bengaluru choked

There is no stopping the boom for vehicles in the city as roads are choked with vehicle population.   According to transport department data,  the vehicle population is set to cross 80 lakh out of which 14-16 lakh are cars and 55-60 lakh are two-wheelers.  This has also contributed to reckless driving in the streets.

Experts say the growth in vehicle registration is alarming and is, in turn, is responsible for the vehicle population.  Even footpaths are choked with vehicles thereby causing problems to pedestrians.

According to the National Bureau of Economic Research of U.S of America, Bengaluru is the most congested city in India.

The ever-increasing vehicle population of Bengaluru has contributed to the dropping in the average speed of a vehicle in the city from 35 km/hr in 2005 to 20 km/hr in 2010 and 9.2 in 2014. The city’s roads are bearing the burden of twice their vehicular capacity – enough of an indicator that the city is getting gridlocked.

Initiatives to curb vehicle population:

Various agencies are taking up numerous initiatives to curb vehicle population like ‘Bus Day’, ‘Open Street Day’ and ‘Less Traffic Day’ to promote the use of public transport.  But the impact of all these efforts is highly debatable.

The different zones of Bengaluru city have 1,400 km. of an arterial and sub-arterial road but half of these roads are two-lane with traffic.

Vehicle population history:

When the city’s population was 16.64 lakh in 1971, the vehicle population was just around one lakh.  Nobody – not even the planners saw what was to come. So, while the vehicle boom overtook the city, every other piece of infrastructure was left far behind.

The city’s traffic police wing was formed in 1930 with a staff strength of 40 policemen in the Halasuru Gate police station.

Solutions to curb vehicle population :

Metro rail is progressing at snail’s pace and the suburban rail project is yet to take off as well as road widening plans being hit by land acquisition delays.

Experts suggest

  • Expansion of BMTC bus services
  • Levying congestion tax
  • Regulating per family vehicle ownership
  • Additional taxes and cess
  • Parking fee to be hiked
  • Promoting carpooling could help stem the growth of private vehicles.

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Gas pipeline damaged near Whitefield today

Gas pipeline damaged near Whitefield today

A leakage in Gail gas pipeline near Decathlon on ITPL Main road, Gardacharplaya in Mahadevapura near Whitefield has panicked locals and commuters.

Metro officials along with fire force, GAIL authorities and police rushed to the spot and blocked 500 metres radius of the area.  Traffic moving towards ITPL Main road to reach Whitefield were advised to use Devasandra main road or use outer ring road (ORR) to proceed towards Marathahalli and reach Whitefield.    Traffic moving towards the city from Whitefield are advised to proceed towards graphite from Hoodi proceed towards Kundalahalli towards city via Marathahalli.

Fire and emergency services personnel were pressed into service to prevent any further danger.  Gail officials, who restored the pipeline, claimed that the leak was caused due to the ongoing Namma Metro Construction work.

According to the Managing Director of Bangalore Metro Rail Corporation Limited (BMRCL)  it was an accidental damage. He said the pipeline was not found in the test trenching but BMRCL was not taking steps to ensure such accidents do not repeat.

In order to prevent any such reoccurrence, BMRCL is obtaining gas network alignment from GAIL in all metro reaches.  BMRCL  will super impose them with metro alignment and ensure removal of any potential conflict before taking up any construction.

This is the second such incident as a similar incident occurred in Mahadevapura on October 22 and a complaint was filed with the Mahadevapura police station.


Gottigere lake to shrink for road widening

Gottigere lake to shrink for road widening

Amid a huge protest against the encroachment of water bodies, the government has decided to shrink a part of the Gottigere lake on Bannerghatta road for the namma metro project.  This lake is said to be 500 years old.  This lake is an upstream lake of Hulimavu lake and Madiwala lake, which is spread on the eastern side of the Bannerghatta road.  It has suffered encroachments repeatedly and also the sewage water inflow has polluted and degraded the lake badly.

In a  meeting held between BBMP and BMRCL, it was decided to widen the Bannerghatta road by 10-15 feet.  The road runs on the boundary of the Gottigere lake. A part of the lake will be lost in the process.  A concrete wall will be constructed on the dried up portion of the lake.

According to an official it was easier to shrink lakes after the abolition of the Karnataka Lake Conservation of Development Authority (KLCDA) as KLDCA Act is also lost.

Locals and expert authorities in this field are not in favor of this idea as the lake was once home to migratory birds and needs to be restored.

The lake has already lost its identity, if shrunk further, nothing much will be left.

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