1. 2016 Traffic Records Forum
Using Geographic Information Systems (GIS), Statistical Analysis and Dashboards to Support DOT Decision Making
Ms. Qingxin Fang
O8 August 2016
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2. Contents Fatal Vehicle Crashes Data Visualization
2016 Traffic Records Forum
Fatal Vehicle Crashes Data Visualization
Contents
The rates of fatal vehicle crashes per licensed driver in the United States
The trends of fatal vehicle crashes in the US and DC in the past 25 years
The first injury or damage producing event of the crashes in the DC Area
The influencing factors of fatal vehicle crashes in the DC Area
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3. Rates of Fatal Vehicle Crashes per Licensed Driver in 1994 and 2014
2016 Traffic Records Forum
Rates of Fatal Vehicle Crashes per Licensed Driver in 1994 and 2014
Year 1994, Fatal Vehicle Crashes/Licensed Drivers
Year 2014, Fatal Vehicle Crashes/Licensed Drivers
Unit : Cases of fatal vehicle crashes per one hundred thousand licensed drivers
Fatal Crashes/Licensed Drivers
Highest 5 States, 1994
New Mexico 38
Mississippi 37
Montana 36
South Carolina 35
Alabama 34
Lowest 5 States, 1994
Rhode Island 11
Massachusetts 12
District of Columbia 13
New Jersey 15
Connecticut 16
Highest 5 States, 2014
Wyoming 30
Mississippi 27
Oklahoma 24
New Mexico 23
North Dakota
Lowest 5 States, 2014
District of Columbia 5
Massachusetts 6
Rhode Island 7
Vermont 8
Washington
5 - 12
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4. Trends of Fatal Vehicle Crashes in the US and DC
2016 Traffic Records Forum
Trends of Fatal Vehicle Crashes in the US and DC
Number of Fatal Vehicle Crashes in the United States, 1990 – 2014
Year
Number in US
Number in DC
1990~1994
39836 63
36937 89
34942 67
35780
36254 84
1995~1999
37241 82
37494 58
37324 96
37107 81
37140 60
2000~2004
37526 66
37862 86
38491 73
38477
38444 69
2005~2009
39252 57
38648 49
37435 48
34172 43
30862 37
2010~2014
30296 28
29867 29
31006 21
30203 20
29989 26
1990
2005
2011
Number of Fatal Vehicle Crashes in the District of Columbia, 1990 – 2014
1997
2003
2013
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5. 2016 Traffic Records Forum
The First Injury or Damage Producing Event of the Crashes in the DC Area
Curb
Curb
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6. Factors which Increase Fatal Vehicle Crashes in the DC Area
2016 Traffic Records Forum
Factors which Increase Fatal Vehicle Crashes in the DC Area
Observations:
Factor: Driving at night on roads without streetlights
Fatal vehicle crash line has a similar trend with the factor line in the past 25 years
More factors cause more fatal vehicle crashes
This factor increases the probability of fatal vehicle crashes
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7. Factors which Increase Fatal Vehicle Crashes in the DC Area
2016 Traffic Records Forum
Factors which Increase Fatal Vehicle Crashes in the DC Area
Observations:
Factors: Inexperienced drivers, driving in the rain and driving on the shoulder
Fatal vehicle crash line has a similar trend with three factor lines in the past 25 years
More factors cause more fatal vehicle crashes
These three factors increase the probability of fatal vehicle crashes
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8. Factors which Decrease Fatal Vehicle Crashes in the DC Area
2016 Traffic Records Forum
Factors which Decrease Fatal Vehicle Crashes in the DC Area
Observations:
Factors: Driving on the roadway, driving at night on roads with streetlights and driving with no occupants
Fatal vehicle crash line has an opposite trend with three factor lines in the past 25 years
More factors cause less fatal vehicle crashes
These three factors decrease the probability of fatal vehicle crashes
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9. Recommendations Fatal Vehicle Crashes Data Visualization
2016 Traffic Records Forum
Fatal Vehicle Crashes Data Visualization
Recommendations
Provide a well-lit road environment.
Consider additional training for inexperienced drivers.
Put up warning signs, and reduce the speed limit when wet road conditions exist.
Put up additional signs along the traffic way to remind drivers when the roadway is changing.
Minimize distracting influences, especially for inexperienced drivers.
Increase “right of way” awareness for drivers and pedestrians.
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10. References Fatal Vehicle Crashes Data Visualization
2016 Traffic Records Forum
Fatal Vehicle Crashes Data Visualization
References
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