The high mode share of bikers in Boulder, Colorado allowed researchers to verify findings already documented by researchers in Europe.
"A University of Colorado Denver study examining collisions between bicycles and motorists, shows bicyclist safety significantly increases when there are more bikes on the road, a finding that could be attributed to a 'safety in numbers effect,'" according to an article on PhysOrg.
"The researchers wanted to create safety performance functions (SPFs) for bicycles in Boulder. SPFs model the mathematical relationship between the frequency of crashes and major factors related to them. Yet while there are SPFs for vehicles, there are none for bikes."
"The authors created their SPF for Boulder by studying crashes at intersections throughout the city where more than two-thirds of collisions occur. They compared the crash data to bicycle count data."
FULL STORY: Study shows more bicyclists on road means fewer collisions
Bike-Mounted Sensor Could Improve Safety for Cyclists
A new camera technology can detect when vehicles pass too close to people on bikes.
Study: Bike Lanes Improve Road Safety
Bike lanes delineated with bollards or traffic cones are most likely to slow drivers and reduce crashes between cars and bikes.
Philly Council Wants to Crack Down on Bike Lane Parking
The city council passed a bill that would raise penalties and eliminate a grace period for drivers who stop in bike lanes.
The City of Broken Sidewalks
Can Los Angeles fix 4,000 miles of broken sidewalks before the city hosts the 2028 Olympic Games?
Shifts in Shopping: Transforming Malls Into Parks
Maybe zombie malls still have a second life — one with a little greenery.
Major US Cities Still Suffering Downtown Decline
Research shows that the “donut effect” hollowing out central business districts since the pandemic continues to cause economic decline in the 12 largest American cities.
San Francisco Tops ‘Urban Mobility Readiness’ List
An annual analysis of global cities assesses public transit, technology, and sustainability.
Bike-Mounted Sensor Could Improve Safety for Cyclists
A new camera technology can detect when vehicles pass too close to people on bikes.
GM Nixes Robotaxi Division
The company suspended the Cruise self-driving taxi service late last year after a vehicle struck and seriously injured a pedestrian.
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.
City of Prescott
Alamo Area Metropolitan Planning Organization
Village of Glen Ellyn
HUDs Office of Policy Development and Research
CORP - COnsulting Research Projects
City of Cambridge, Maryland
Newport County Development Council: Connect Greater Newport
Rockdale County Board of Commissioners