Lower Speed Limits as a Climate Action Tool

Slowing down traffic can reduce greenhouse gas emissions in addition to improving roadway safety.

1 minute read

January 10, 2024, 9:00 AM PST

By Diana Ionescu @aworkoffiction


Close-up of "Maximum 30 Secteur" speed limit sign on pot in Quebec, Canada.

Rania / Adobe Stock

In an article in Policy Options, Jörg Broschek argues that reducing speed limits is one of the fastest ways to reduce greenhouse gas emissions.

According to Broschek, a speed limit of 30 kilometers per hour (18.64 miles) would also improve safety and mobility in addition to cutting emissions. “To be sure, 30 km/h zones won’t solve the problem all by themselves. But they are an important tool as part of a more equitable and sustainable local transportation infrastructure.”

As Broschek explains, “In zones of 30 km/h, many four-way stops can be done away with in residential neighbourhoods.” Broschek calls on Canadian municipalities to take action and adjust their speed limits, a common practice in Europe that few North American cities have adopted.

Monday, January 8, 2024 in Policy Options

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I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

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