Reducing speed to save lives

We can save so many lives around the world if we just slow down. Each year, more than 1.25 million people – many of them young people – die in automobile crashes. And a large proportion of these deaths are preventable: about one third are due to vehicles traveling at excessive speeds. In low- and middle-income countries, that figure is closer to half.

Regardless of where one lives, speeding is a lethal problem. Studies show that on most roads, in most countries, 40–50% of all cars travel above the posted speed limit.

And whether or not a car is speeding can be the difference between life and death. For example, someone who is hit by a vehicle traveling at 50 miles (80 kilometers) per hour has a 3 times higher risk of dying than if they had been hit by a vehicle moving at 30 miles (48 kilometers) per hour.

This means that just setting urban speed limits at 30 miles per hour or less, and allowing local authorities to reduce speed limits further around schools and other areas with high pedestrian traffic, would save many lives.

It is encouraging that 47 countries around the world are already implementing these commonsense practices. But we must do far more to expand the reach of such measures, and to ensure that more governments adopt them.

Not surprisingly, countries that have embraced a comprehensive approach to road safety, such as the Netherlands, Switzerland, and the United Kingdom, have had the most success in reducing their rates of death and injury from automobile accidents.

These countries have made it a high priority to reduce rates of speeding, and they have taken steps to improve the safety of their roads, vehicles, drivers, and all others who use roads, including pedestrians and motorcyclists.

For example, proactive countries have built their roads to include features that calm traffic, such as roundabouts. They have also established speed limits tailored to local road conditions, while stepping up enforcement to deter traffic violations.

And they have begun to require that all new cars include life-saving technologies such as autonomous emergency braking.

Municipal leaders worldwide – from Addis Ababa to Mumbai to Bangkok – have played a key role in implementing these measures, which are not just saving lives, but also making their cities healthier in other ways. Safer streets encourage more people to walk and cycle, helping to reduce air pollution, which has been linked to chronic respiratory disease, cancer, and other noncommunicable diseases.

To build on these achievements, Bloomberg Philanthropies, the World Health Organization, and other partners are working with municipal leaders to help them gather the data needed to identify problem areas more effectively. They can then determine where to target their limited resources to make the biggest improvements.

We are also providing support for local authorities to stage public-awareness campaigns that will help build grassroots support for new road-safety legislation and stronger penalties.

Improving road safety is one of the biggest opportunities we have to save lives around the world. And the good news is that, starting with the solutions outlined above, we already know how to do it.

A world in which far fewer lives are lost to automobile accidents is possible and entirely within our reach. It is up to all of us to make it a reality.