Related Experiment Video
Updated: Dec 8, 2025

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
Published on: January 20, 2023
Self-Reported Speeding Among New York City Adult Drivers, 2015-2016
Jennifer M Norton1, Lawrence Fung2, Catherine Stayton2
1Department of Population Health, NYU Langone Health, Grossman School of Medicine, New York, NY, USA. Jennifer.Norton@nyulangone.org.
Abstract:
Motor vehicle crashes are a leading cause of injury related deaths. Urban areas accommodate multiple road users and pedestrians account for a larger share of traffic fatalities. Speed reduction has been one component of New York City's multidisciplinary approach to reduce traffic fatalities-Vision Zero. Data from the New York City (NYC) Community Health Survey 2015-2016 were used to document population-based estimates of self-reported speeding (defined as driving ten miles per hour or more over the posted speed limit in the past 30 days) among NYC adult drivers collected soon after the adoption of Vision Zero in 2014. Self-reported speeding is common, with nearly two-thirds (63%) of adult drivers indicating they ever sped and 13% often speeding. In adjusted multivariable models, often speeding was more common among younger drivers vs. older drivers (adjusted prevalence ratio: 2.77; 95%CI 1.93-3.98), males vs. females (adjusted prevalence ratio: 1.59; 95%CI 1.35-1.87), wealthier drivers vs. poorer drivers (adjusted prevalence ratio: 1.37; 95%CI 1.10-1.70) and those reporting worse perceived social cohesion vs. better perceived social cohesion (adjusted prevalence ratio 1.51; 95%CI 1.09-2.10). Population-based health surveys facilitate exploration of a range of potential influences on health behaviors.
Related Concept Videos
Average Velocity
Average Acceleration
The Anchoring-and-Adjustment Heuristic
Velocity of an Object
Impulse
Additionally, it can be shown that the...
Testing a Claim about Mean: Known Population SD
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...

