Safer roads for a greener, more sustainable environment

Being cognisant of road safety while working on environmental sustainability is the need of the hour

December 02, 2022 12:15 am | Updated 12:45 pm IST

Damaged vehicles in Pune.

Damaged vehicles in Pune. | Photo Credit: PTI

The impact of road safety goes a long way. In addition to ensuring an easier, comfortable, and more secure commute, safer roads also have a positive impact on the environment. In 2021, India reported 4,03,116 crashes, each of which adversely impacted the environment in various ways and in different degrees. Most vehicles contain toxic metals such as lead, mercury, cadmium or hexavalent chromium, which are detrimental to the environment. Fuel and fluid leaks are seen at crash sites. Severe road crashes lead to automobile wreckage, which becomes a part of unusable end-of-life vehicles. This gives rise to scrappage. India is estimated to have about 22.5 million end-of-life vehicles by 2025. Despite being one of the largest car and light commercial vehicle markets in the world, India’s National Automobile Scrappage Policy, launched in 2021, is still in its nascent stages.

With the absence of widespread, systematic facilities dedicated to their proper recycling, vehicles after road crashes as well as old end-of-life automobiles are left to rot by the wayside. Some end up at landfills or at informal recycling facilities where rudimentary hand tools are utilised to unscientifically dismantle them. This leads to the leakage of hazardous constituents such as oils, coolants and glass wool. Vehicle landfills turn into automobile graveyards leading to wasteful and sub-optimal land usage and water and soil pollution for decades.

Also read | The road to safety

Speeding limits

Road safety and environmental sustainability are closely intertwined concepts. Being cognisant of the latter while working on the former is the need of the hour. One of the biggest factors for road crashes is speeding. In 2020 alone, speeding was responsible for 91,239 road crash fatalities, comprising 69.3% of all road crash deaths registered. Speeding has consistently been responsible for over 60% of all road crash fatalities in India in the last five years. Simulation exercises in Europe have demonstrated that cutting motorway speed limits even by 10 km/h can deliver 12% to 18% fuel savings for current technology passenger cars, along with a significant reduction in pollutant emissions, particularly Nitrogen Oxides and particulate matter (PM) output, from diesel vehicles. A similar study conducted in Amsterdam demonstrated that where the speed limit was lowered from 100 km/h to 80 km/h, PM reduced by up to 15% thereby significantly improving air quality. Studies also show that highway speed limits of 96.5 km/h are 25% more efficient than limits of 120 km/h, in which case wind resistance leads to more fuel consumption.

Consequently, several governments globally have reduced speed limits to prevent crashes and lower air pollution. For instance, the Wales government brought in 80 km/h speed limits at five locations across Wales to reduce outdoor pollution and improve public health. In India, the Zero-Fatality Corridor solution for road safety by the SaveLIFE Foundation (SLF) takes environmental sustainability seriously and focuses on reducing speeding through advanced engineering and enforcement technologies.

Various initiatives

Vegetation on or very close to the road stretches often falls prey to road widening initiatives. All road safety initiatives undertaken and recommended by the SaveLIFE Foundation are designed to be impactful and environment-friendly. The Foundation’s Zero-Fatality Corridor (ZFC) programme, which was deployed on the Mumbai-Pune Expressway in 2016, helped bring down road crash fatalities by 52%, as of 2020. Similar interventions were introduced in 2018 on the Old Mumbai-Pune Highway and helped reduce the road crash fatalities on this stretch by 61%, as of 2021.Initiatives included guarding natural hard structures such as trees using crash barriers to prevent direct collisions, and installing retro reflective signage on the trees to make them more visible to commuters. The Government of India too is now building green corridors to go over forests and animal paths as opposed to going through them. Scaling this will have a profound impact on preserving the environment while ensuring better road connectivity.

Missing or inadequate signages are another leading cause of road crashes. Their absence results in road users being unaware of a stretch’s unique features in a timely manner, which could lead to crashes. It is a common standard practice to use asbestos for creating these signages. As asbestos has an adverse impact on the environment, the ZFC programme opts only for long-lasting, high-quality, non-hazardous material for signage. Despite being more expensive than asbestos, one of the most sustainable and recyclable materials, Aluminium Composite Panels, are employed for signages. Not only is this free of toxic gas or liquids during the production process, it is also recyclable separately as aluminium and plastic, without much value or quality loss. This also makes it apt for subsequent multi-purpose usage.

Roads and the environment are inseparable spaces. They are not just our shared resources but also our joint responsibility. Therefore, safer roads and a sustainable environment can be ensured only through the joint efforts of road-owning agencies, enforcement officials and the public.

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