Street Design Principles by Sidewalk Labs

Sidewalk Labs, a smart cities shop within the Alphabet corporate structure, is working to revolutionize technology's role in city planning. Sidewalk Labs recently released the street design principles it's using to guide that effort.

1 minute read

May 1, 2019, 9:00 AM PDT

By James Brasuell @CasualBrasuell


Street Design

La Citta Vita / Flickr

"Sidewalk Labs, the smart cities arm of Google parent company Alphabet, has released a set of design principles to make streets safer and more efficient as new mobility technologies come online," reports Jason Plautz.

Willa Ng laid out the four principles in a blog post posted on Medium. According to Ng, Sidewalk Labs is attempting to push the current era of critical thinking about streets (in the era of building political support for complete streets and the dawn of autonomous vehicles).

Here are the four principles Sidewalk Labs is using to guide street designs:

  • Principle 1: Tailor streets for different modes.
  • Principle 2: Separate streets by speed.
  • Principle 3: Incorporate flexibility into street space.
  • Principle 4: Recapture street space for the public realm, transit, bikes, and pedestrians.

As noted by Plautz, Sidewalk Labs will get a chance to test its principles with the Quayside development, moving forward in Toronto despite controversy. There's also a full report on the design principles

Tuesday, April 30, 2019 in Smart Cities Dive

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

Get top-rated, practical training

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25,% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Two yellow and white Dallas Area Rapid Transit light rail streetcars at station in Dallas, Texas.

North Texas Transit Leaders Tout Benefits of TOD for Growing Region

At a summit focused on transit-oriented development, policymakers discussed how North Texas’ expanded light rail system can serve as a tool for economic growth.

April 3, 2025 - KERA News

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Amtrak Acela

How to Make US Trains Faster

Changes to boarding platforms and a switch to electric trains could improve U.S. passenger rail service without the added cost of high-speed rail.

April 11 - Bloomberg CityLab

Mural showing tools and craft supplies with banner reading 'Things are made here' in front of makerspace in Columbia, Missouri.

Columbia’s Revitalized ‘Loop’ Is a Hub for Local Entrepreneurs

A focus on small businesses is helping a commercial corridor in Columbia, Missouri thrive.

April 11 - Next City

Close-up of wood log with emerald ash borer larvae tracks etched in the wood.

Invasive Insect Threatens Minnesota’s Ash Forests

The Emerald Ash Borer is a rapidly spreading invasive pest threatening Minnesota’s ash trees, and homeowners are encouraged to plant diverse replacement species, avoid moving ash firewood, and monitor for signs of infestation.

April 11 - The Bemidji Pioneer