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Bengaluru, May 17: Karnataka Deputy Chief Minister and Transport Minister Laxman Savadi on Sunday wrote to Union Minister Nitin Gadkari requesting to issue new lockdown guidelines including permission to operate public transport and said the lockdown has caused a financial loss of Rs 16,00 crore to all four Karnataka Transport Undertakings.

In view of these problems, the state Transport Minister requested Gadkari to permit the deployment of Non-AC buses on scheduled routes to ensure the adequacy of services.

The four State Transport Undertakings (STUs) in Karnataka which are providing bus-based public transport services within the state and to the neighbouring states are Karnataka State Road Transport Corporation (KSRTC), North West Karnataka Road Transport Corporation (NWKRTC), North Eastern Karnataka Road Transport Corporation (NEKRTC) and Bangalore Metropolitan Transport Corporation (BMTC).

"KSRTC, NWKRTC and NEKRTC operate buses for mofussil services i.e. Interdistrict, intradistrict and interstate, whereas BMTC operates only in urban and suburban areas in the city of Bengaluru. The four STUs put together hold a fleet of about 24,900 buses including 1,520 air-conditioned buses and operate about 71.00 lakh km. per day and carries about 98.00 lakh passengers every single day," Savadi outlined in the letter.

The Minister said due to the COVID-19 outbreak and the lockdown that ensued have brought regular bus operations and functioning to a grinding halt.

"This has caused a devastating impact on the operations of all the four STUs due to the combination of lack of revenue and continuing fixed costs such as salaries and pensions to staff, payables against existing loans etc. It has been estimated that the lockdown has caused a financial loss of INR 1,600/- crore to these four STUs," he added.

Savadi said even after post-COVID lockdown, operations and revenues won't reach its previous demand& supply patterns in the next six to eight months due to reduced economic activity and users' perceived risk of contacting COVID in public transport.

In addition to that, "occupancy should be allowed up to seating capacity (without standees). This is essential to meet minimal demand," he said in the letter.

"The crew should wear facemask and hand gloves. The crew with health issues should not be deployed. The face masks should be made mandatory for all the passengers. Only asymptomatic persons should be allowed to travel in public transport. The Government of India may consider staggering working hours for various sectors to reduce peak hour traffic demand," the minister listed out these recommendations in the letter.

Savadi said that with social distancing norm of reduced seating capacity in public transport, it will not be possible to provide transport facility to all the daily passengers. This will create demand for more buses, which cannot be met.

"Restrictions on public transport will lead to passenger commute by overcrowding in smaller vehicles like cars, maxi cabs, goods tempos etc. which will adversely affect preventive measures," he added.

Therefore, Savadi requested Union Minister to look into the above matter and issue fresh guidelines to all the states / UT's.

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study