Untouched Snow Reveals Street Usage

Those who promote safe streets often complain of streets that are too wide, wasting space and promoting reckless speeds. In chilly Calgary, undisturbed snow shows just how much street area is completely unused.

1 minute read

December 14, 2016, 1:00 PM PST

By Casey Brazeal @northandclark


Street Snow

Matthew in Boston / Flickr

In a short compelling piece for his blog, Sneckdown Calgary, Matthew Worona illustrates how untouched snow can show where street space is going totally unused—the formation known as a sneckdown. Snow can serve as evidence of how much of the road next to the curb goes untouched and, to a lesser extent, how often people turn in each direction. "Looking more specifically at the turn lanes there is potential that these are justified even if the road is significantly under capacity. If there are a huge number of turns made maybe the slip lanes are necessary. While the tracks in the snow show little use of all but one of the slip lanes I went looking for numbers," Worona writes.

It's not the first time the argument's been made. But it's worth the seasonal reminder of how lane widths can influence speed and safety of streets. Looking at the unused space, it's easy to think what could be done with the additional curb space, whether it's more room for sidewalks, trees, cafés, or awnings, or reducing the amount of time it takes a pedestrian to cross the street. That's useful space that's being wasted on empty asphalt.

Thursday, December 8, 2016 in Sneckdown Calgary

portrait of professional woman

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

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 11, 2025 - Diana Ionescu

Rendering of Shirley Chisholm Village four-story housing development with person biking in front.

San Francisco's School District Spent $105M To Build Affordable Housing for Teachers — And That's Just the Beginning

SFUSD joins a growing list of school districts using their land holdings to address housing affordability challenges faced by their own employees.

June 8, 2025 - Fast Company

Yellow single-seat Japanese electric vehicle drivign down road.

The Tiny, Adorable $7,000 Car Turning Japan Onto EVs

The single seat Mibot charges from a regular plug as quickly as an iPad, and is about half the price of an average EV.

June 6, 2025 - PC Magazine

White Waymo autonomous car driving fast down city street with blurred background at night.

Seattle's Plan for Adopting Driverless Cars

Equity, safety, accessibility and affordability are front of mind as the city prepares for robotaxis and other autonomous vehicles.

3 hours ago - Smart Cities Dive

Two small wooden one-story homes in Florida with floodwaters at their doors.

As Trump Phases Out FEMA, Is It Time to Flee the Floodplains?

With less federal funding available for disaster relief efforts, the need to relocate at-risk communities is more urgent than ever.

5 hours ago - Governing

People riding bicycles on separated bike trail.

With Protected Lanes, 460% More People Commute by Bike

For those needing more ammo, more data proving what we already knew is here.

7 hours ago - UNM News