Introduction

During the first couple of months in New York, one of our group members witnessed a car accident which caused a huge traffic jam on her way to class. This experience motivates us to do some research and investigate car accidents in New York. According to the Department of Health in New York, there were 1,098 deaths each year due to unintentional motor vehicle traffic-related injuries and 12,093 hospitalizations each year due to motor vehicle traffic-related injuries.

Therefore, we are interested in exploring some factors related to car accidents. Through data analysis, we will obtain the peak time period, concentrated areas, and main causes of accidents, aiming to effectively decrease the rate of car accidents taking place and further ensure personal safety.

 

Website Summary

Please refer to final report for details.

In the exploratory analyses section, you will find:

  • Exploration of frequency of car accidents

  • Analyses of car accidents over time

  • Investigation of accident casualty

  • Examination of car accidents by vehicle types

  • Association between weather and car accidents

Our statistical analyses section includes two parts:

Statistical tests:

  • Anova Test - whether month and weekday are associated with car accidents

  • Chi-squared Test - whether the vehicle types proportion vary among boroughs

  • Chi-squared Test - whether the accidents proportion for weekdays vary among boroughs

  • Proportion Test - whether proportions of car accidents are different across boroughs

Regression analyses:

  • Number of car accidents vs day or night - whether there is an association between the number of accidents and the day or night of a day

  • Number of car accidents vs weekdays - whether there is an association between the number of accidents and weekdays

  • Number of car accidents vs borough - whether there is an association between the number of accidents and different boroughs

  • Severity vs weather conditions - whether there is an association between severity and weather conditions

In Mapping tab, you will find:

  • Mapping of car accidents

  • Mapping of number of injuries in each accident

 

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