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Related Concept Videos

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The movement of a car along a highway can be examined through key principles of calculus and kinematics. As the car travels, its position varies over time and can be represented mathematically as a function of time. Analyzing the rate of these changes enables the measurement of velocity and acceleration, fundamental aspects of motion analysis.Velocity describes how position changes over time. The average velocity during a specific time interval is calculated by dividing the change in position...
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Related Experiment Videos

Driving through the Great Recession: Why does motor vehicle fatality decrease when the economy slows down?

Monica M He1

  • 1University of Pennsylvania, Population Studies Center, 3718 Locust Walk, McNeil Building, Philadelphia, PA 19104, USA.

Social Science & Medicine (1982)
|March 12, 2016
PubMed
Summary
This summary is machine-generated.

Economic downturns reduce motor vehicle (MV) crash fatalities. Higher unemployment rates significantly decrease MV fatality rates, primarily due to reduced driving risk, not less driving.

Keywords:
Large trucksMotor vehicle deathsPro-cyclical mortalityThe Great RecessionUnemployment

Related Experiment Videos

Area of Science:

  • Traffic safety research
  • Transportation economics
  • Public health

Background:

  • Motor vehicle (MV) crashes are a leading cause of mortality.
  • Economic fluctuations have been linked to temporary changes in mortality rates.
  • Previous research suggests a correlation between economic growth and increased MV fatalities.

Purpose of the Study:

  • To investigate the mechanisms behind decreasing MV fatality rates during economic downturns, specifically the Great Recession.
  • To quantify the relationship between unemployment rates and MV fatality rates.
  • To differentiate between risk and exposure factors influencing MV crash fatalities.

Main Methods:

  • Utilized U.S. state-level panel data spanning from 2003 to 2013.
  • Estimated the impact of unemployment rate changes on MV fatality rates.
  • Decomposed the relationship into driving risk and exposure components for various crash types.

Main Results:

  • A 1% increase in the unemployment rate was associated with a 2.9% decrease in the MV fatality rate.
  • This effect was predominantly driven by changes in driving risk, not the overall amount of driving.
  • The findings were particularly significant for crashes involving commercial trucks, multiple vehicles, and speeding.

Conclusions:

  • Economic downturns, indicated by higher unemployment, lead to safer driving conditions and fewer road fatalities.
  • Changes in driving behavior and risk-taking, rather than reduced driving exposure, are the primary drivers of this safety improvement.
  • Traffic safety interventions may need to consider economic conditions and their impact on driving risk.