When the County proposed reducing westbound lanes on NM 4 in White Rock, many residents referred to it a “road diet.” County staff were quick to clarify — it’s not technically a road diet. Los Alamos already put a section of Trinity Drive on an actual road diet, which was completed in 2019, and another section of the same road is slated for a “hybrid” road diet in 2026. While a proposed lane reduction on NM 4 in White Rock isn’t technically a road diet, these projects share a common goal: making streets safer for everyone.
So what is a road diet? And why are communities across the country increasingly choosing this particular tool for street safety?
What is a road diet?
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