VEHICLE ROTATION SCHEME - ENVIRONMENT

News: Odd-Even Scheme in Delhi: What We Know So Far

 

What's in the news?

       In view of the worsening air quality, the odd-even car rationing scheme is to be implemented in Delhi.

 

Air Pollution in Delhi:

       A study by the environment and climate change think tank Centre for Science and Environment, (CSE) found that at their peak in past years, farm fires contributed to 40% of the PM 2.5 concentration in the air.

       Several studies have suggested that the bulk of Delhi’s air pollution is caused by local sources, and vehicles contribute up to 30% of the city’s annual PM 2.5 concentration.

 

Vehicular Pollution in Delhi:

       Vehicles also emit other pollutants such as NO2, and the CSE estimates that levels of the gas this year are up by as much as 60% compared to the same time last year.

       Certain high traffic locations have reported levels as high as three-four times the 24-hour standard.

       Odd-even as a way to bring down air pollution has been tried in some form in cities in China, Mexico, and France as well.

 

Odd-even scheme:

       Implemented by the Delhi government in 2016, the odd-even program permits private vehicles to operate on designated days based on the last digit of their license plate number. 

       Vehicles with even digits are allowed on even dates, while those with odd digits are permitted on odd dates.

       Only odd-numbered cars were allowed on the roads between 8 am and 8 pm on odd days, whereas even-numbered cars were allowed at the same time on even days.

       The people who violated the rule were fined Rs 2,000.

       Special arrangements like extra buses, a bike taxi service and increase in the metro frequency were made to make the plan successful.

       In the previous phases of the scheme, two-wheelers, women-only vehicles, CNG, hybrid and electric vehicles, emergency vehicles and VIPs were exempted from it.

       The scheme was tried out twice in 2016, and then in 2019. 

       The details of the new scheme have not been announced yet.

 

Impact of Odd-even scheme on Delhi:

       The odd-even program, implemented by the Delhi government in 2016, aimed to reduce the number of vehicles on the road and subsequently lower emissions. 

       However, experts argue that it is not a consistent solution, as the reduction in vehicles is not always substantial, and emissions may not necessarily decrease pollutant levels due to factors like wind speed. 

       The impact of the scheme varies across areas, with some experiencing reductions, while others do not or only temporarily. 

       Research is inconclusive regarding the impact on health, and even a 20% reduction in PM2.5 levels can be harmful if above 500. 

       Long-term exposure to pollution poses risks to various health issues. 

       Studies indicate a small decrease in particulate matter during the odd-even scheme, ranging from 5 to 10%, with variations observed across different areas and times of the day. 

 

Studies suggest that while the odd-even policy in Delhi may have a modest impact on decreasing vehicle traffic and emissions, it falls short of significantly addressing pollution. To effectively tackle the issue, there is a need for collaboration between the Delhi government and the state governments of Haryana and Punjab to implement long-term solutions.