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

Young Professional

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 and Environmental 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 and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

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

September 16, 2026 - Zachary Whalen

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

The Hoover Dam blocking the Colorado River. The river's water level is noticeably low. The cliffs surrounding the blue water are brown and jagged.

US to reduce Colorado River water deliveries to Mexico

A new Colorado Treaty amendment reduces Mexico’s Colorado River water allocation by 250,000 acre feet.

September 11, 2026 - The Arizona Republic

A coal power plant in Iowa billows smoke into the air.

Nation's most wind-powered state turns to coal as data centers increase energy demand

For the first time in decades, Iowa has increased its generation of coal power.

3 hours ago - Inside Climate News

A sign on a fence describing the rain garden behind it.

NYC cools commuters with city's first rain garden above a bus stop

New York City officials say the plants in the rain garden can absorb 16 gallons of rainwater during heavy storms.

4 hours ago - Gothamist

A map showing Brightline West's intended route from  Las Vegas to Rancho Cucamonga, California.

Brightline West’s future may rely on $6 billion federal loan

The company has until Nov. 2 to make a $400 million equity investment into its proposed high-speed rail line.

5 hours ago - Smart Cities Dive

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.