New research from IIT Kharagpur has proved that scientific speed management interventions can significantly cut fatal crash risk, fatalities and crash severity on Indian highways, offering crucial evidence for policymakers as India seeks to halve road crash deaths and serious injuries by 2030.

The findings were presented at a high-level road safety dialogue organised by the Road Safety Network (RSN) in partnership with IIT Kharagpur, as the country continues to grapple with a severe road safety crisis. More than 1.8 lakh lives were lost in road crashes in 2024.

The study, carried out on a 51-km stretch of National Highway 16 between Balihati and Kolaghat in West Bengal, examined how design-based speed management measures affected vehicle behaviour and crash outcomes.

Researchers found the interventions cut operating speeds by 39-45% for cars, 29-33% for heavy vehicles and 18-28% for two-wheelers.

The study also recorded significant reductions in fatal crashes, fatalities, crash severity and the likelihood of a crash turning fatal at locations where speed management measures were applied.

Speeding remains a leading cause of road crashes in India. According to the Ministry of Road Transport and Highways’ Road Accidents in India 2024 report, over-speeding accounted for 62% of all road crashes and more than one lakh fatalities nationwide. Pedestrians, among the most vulnerable road users, accounted for 20.6% of all crash fatalities.

Prof. (Dr.) Bhargab Maitra, Professor, Department of Civil Engineering, IIT Kharagpur, and a Road Safety Network member, said the Safe System approach recognises that while people make mistakes, roads, policies and systems must be designed so those mistakes do not result in death or serious injury.

He said scientific speed management is central to this approach, and that aligning speeds with road function and the needs of all users, particularly vulnerable ones, significantly improves safety outcomes. He called for greater emphasis on evidence-based interventions as India pursues its road safety targets.

The findings were unveiled at a dialogue convened by RSN and IIT Kharagpur at the IIT Kharagpur Research Park, bringing together government officials, public health experts, researchers and road safety practitioners to discuss evidence-based approaches to reducing fatalities and serious injuries.

RSN also presented recommendations to the Ministry of Road Transport and Highways and state and local authorities to strengthen speed management nationwide.

These included rationalising speed limits based on road function and user risk, adopting context-sensitive speed zoning, strengthening infrastructure and access control, expanding technology-enabled enforcement, improving crash data systems and enhancing coordination across transport, enforcement, health and urban development sectors.

The recommendations stressed aligning speed management policies with the safety needs of vulnerable road users to support India’s road safety goals.