Bike lanes delineated with bollards or traffic cones are most likely to slow drivers and reduce crashes between cars and bikes.

A study of temporary bike lanes installed at an intersection in Asbury Park, New Jersey shows that both painted and delineated bike lanes (those separated with bollards) slow drivers and reduce the risk of collisions with people on bikes.
As Maylin Tu explains in Next City, “For the experiment, researchers temporarily removed nine parking spaces to create 6-foot wide bike lanes with a 3-foot buffer between bike and car travel lanes. Car travel lanes were reduced by at least one foot each, a decrease that has been shown to reduce crashes. In addition, the bike lanes created a sharper turning radius for drivers turning right, another intervention that might force drivers to slow down.”
Delineated lanes made the biggest impact. “For vehicles turning right, top speeds were reduced by 28% and average speeds by 21%. Paint-only bike lanes slowed driver speeds by up to 14% and drivers going straight slowed down by up to 8%.”
The study notes that pop-up, temporary bike lanes like the ones used in the research can help cities understand how bike lanes can improve road safety before making more permanent changes, but “In order to achieve Vision Zero initiatives, planners and policy makers should focus efforts on delineated bike lanes, not merely painted lanes.”
FULL STORY: How Bike Lanes Slow Drivers and Save Lives

Florida Considers Legalizing ADUs
Current state law allows — but doesn’t require — cities to permit accessory dwelling units in single-family residential neighborhoods.

HUD Announces Plan to Build Housing on Public Lands
The agency will identify federally owned parcels appropriate for housing development and streamline the regulatory process to lease or transfer land to housing authorities and nonprofit developers.

Has President Trump Met His Match?
Doug Ford, the no-nonsense premier of Canada's most populous province, Ontario, is taking on Trump where it hurts — making American energy more expensive.

San Francisco Announces Plan to Overhaul Homelessness Strategy
Mayor Lurie’s three-phase plan promises 1,500 new shelter beds and a restructuring of outreach teams and supportive service programs.

$5 Billion Rental Assistance Fund Set to Run Out of Cash
“No additional funding from HUD will be forthcoming,” HUD announces.

Denver Could Eliminate Parking Requirements
The city could remove parking mandates citywide to reduce the cost of housing construction and ease permitting for new projects.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Florida Atlantic University
City of Grandview
Harvard GSD Executive Education
UCLA Lewis Center for Regional Policy Studies
City of Piedmont, CA
Great Falls Development Authority, Inc.
NYU Wagner Graduate School of Public Service