Early Sharrow Booster: ‘I Was Wrong’

The lane marking was meant to raise awareness and instill shared respect among drivers and cyclists. But their inefficiency has led supporters to denounce sharrows, pushing instead for more robust bike infrastructure that truly protects riders.

2 minute read

January 26, 2023, 7:00 AM PST

By Diana Ionescu @aworkoffiction


Sharrow bike markings on black asphalt two-lane road with snowy trees

Saptashaw Chakraborty / Sharrow lane markings

Dave Snyder, senior director for infrastructure at PeopleForBikes and the former executive director of the California Bicycle Coalition, was an early and enthusiastic supporter of the sharrow, a lane marking designed to make drivers aware that they are sharing space with bikes and encourage people on bikes to claim the lane rather than riding in the dangerous ‘door zone.’ 

According to Snyder, “I thought the sharrow would educate bicyclists to stay out of the ‘door zone’ and usher in a new era of safer streets, one where motorists would patiently wait behind bicyclists ‘taking the lane’ because this painted symbol made it clear they had the right to do so.” But Snyder admits the markings are clearly not enough to change behavior. “Sharrow or no sharrow, most people on bikes dangerously hug the edge of the roadway, squeezing themselves into the door zone to avoid blocking car traffic.” Now, after two decades of data and lived experience, Snyder believes that sharrows “are great for navigation and, perhaps, concentrating riders on certain streets — that’s about it.” 

If anything, Snyder points out that sharrows have an unintended effect that is “insulting” to the bike-riding public: “They allow officials to take credit for doing something for bicycle safety without impacting car traffic, even though that something is next to nothing.”

Snyder emphasizes that bike advocates like him and his current organization, PeopleForBikes, now acknowledge the failures of sharrows and have stopped recommending them. “Today, we know so much more about what it takes to make our streets safer for bicycling. We need separate bike paths; we need protected bike lanes on busy roads; and where the lanes are shared, we need actual speeds reduced to 20 mph or slower.”

Wednesday, January 25, 2023 in Streetsblog USA

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 cluster of wind turbines beneath a stormy sky, above a forest where the leaves are beginning to change colors.

5 New England states march closer to 800 megawatt wind energy project

Securing federal approval for the project may be complicated under the Trump administration, which has historically been hostile towards domestic wind power.

7 hours ago - Inside Climate News

People boarding a bus on Maryland's Orange Route.

Baltimore to break ground on $50 million Transit Priority Project

The project will bring faster bus trips, safer streets and better bike connections to Baltimore.

September 16 - Mass Transit

A brick building with a circular sign with the Airbnb logo hanging off of it.

Airbnb launches $250 million 'last-dollar financing' housing accelerator, makes first investment in Austin

The company will put $6.4 million towards affordable housing development in Texas’ capital.

September 16 - 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.