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FHWA Home / Safety / Speed Management / Integrating Speed Management within Roadway Departure, Intersections, and Pedestrian and Bicyclist Safety Focus Areas

Integrating Speed Management within Roadway Departure, Intersections, and Pedestrian and Bicyclist Safety Focus Areas

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Appendix A. Evaluation of the Role of Speeding in Crashes and Safety-Critical Events

1. Executive Summary
2. Analysis of the role of Speeding in Crashes Using FARS and GES Data
  2.1 Definition of Speeding-Related Crashes
  2.2 Speeding-Related Crashes at the National Level
  2.3 Vehicle Characteristics
  2.4 Roadway And Environmental Characteristics
  2.5 Summary
3. Analysis of the Role of Speeding-Related Fatal Crashes at Intersections Using Fars Data
  3.1 Roadway Characteristics
  3.2 Driver Characteristics
  3.3 Environmental Characteristics
  3.4 Vehicle Type
  3.5 Crash Type
  3.6 Characteristics of Angle Crashes
  3.7 Characteristics of Rear-End Crashes
  3.8 Characteristics of Left-Turn Crashes
4. Speeding-Related Fatal Roadway Departure Crashes
  4.1 Roadway Characteristics
  4.2 Driver Characteristics
  4.3 Environmental Characteristics
  4.4 Vehicle Type
  4.5 Crash Type
  4.6 Characteristics of Rollover Crashes
  4.7 Characteristics of Opposing Direction Crashes
  4.8 Characteristics of Tree Crashes
5. Speeding-Related Crash Data for Pedestrian and Bicylists
  5.1 Roadway Characteristics
  5.2 Driver Characteristics
  5.3 Environmental Characteristics
  5.4 Vehicle Type
6. Analysis of the Role of Speeding in Safety-Critical Events Using SHRP 2 Data
  6.1 Description of Definitions
  6.2 Comparison of Speeding for Safety-Critical Events to Baseline Events
  6.3 Typology of Safety-Critical Events
  6.4 Study Limitations
  6.5 Recommendations and Suggestions for Future Research
7. References
Appendix A - Safety Focus Groups
Appendix B - Additional Resources
Appendix C - Gaps And Needs In Research

List of Tables

Table 1 Variable Coding Used in FARS and GES Datasets
Table 2 Speeding versus Not Speeding by Roadway Type for All Safety-critical Events
Table 3 Speeding versus Not Speeding by Roadway Type for Roadway Departure Safety-critical Events.
Table 4 Speeding versus Not Speeding by Roadway Type for Rear-End Safety-critical Events
Table 5 Speeding versus Not Speeding at Signalized Intersections by Roadway Type
Table 6 Speeding versus Not Speeding at Stop-controlled Intersections by Roadway Type
Table 7 Speeding versus Not Speeding at Yield-controlled Intersections by Roadway Type

List of Figures

Figure 1 Trend in Fatalities and Speeding-related Fatalities in the United States
Figure 2 Percentage of Crashes by Injury Type that are Speeding-related
Figure 3 Percentage of Crashes by Crash Category
Figure 4 Percentage of Speeding-related Crashes by Crash Category
Figure 5 Distribution of Fatal Speeding-related Crashes by Manner of Collision
Figure 6 Distribution of Fatal Non-Speeding-related Crashes by Manner of Collision
Figure 7 Distribution of Driver Age Involved in Speeding-related Fatal Crashes
Figure 8 Distribution of Drivers Involved in Fatal Crashes by BAC
Figure 9 Percentage of Drivers Involve in Fatal Crashes by Previous Convictions
Figure 10 Distribution of Vehicles Involved in Speeding-related Fatal Crashes
Figure 11 Distribution of Vehicles Involved in Non-Speeding-related Fatal Crashes
Figure 12 Distribution of Speeding-related Fatal Crashes by Roadway Function Class
Figure 13 Distribution of Non-Speeding-related Fatal Crashes by Roadway Function Class
Figure 14 Percentage of Vehicles Involved in Crashes that are Speeding-related by Speed Limit Category
Figure 15 Percentage of Speeding-related Crashes by Work Zone Category
Figure 16 Percentage of Speeding Drivers in Fatal Crashes, by Roadway Surface Condition
Figure 17 Distribution of Vehicles Involved in Fatal Speeding-related Crashes by Horizontal Alignment
Figure 18 Distribution of Vehicles Involved in All Speeding-related Crashes by Horizontal Alignment
Figure 19 Distribution of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Intersection Traffic Control
Figure 20 Percentage of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Intersection Traffic Control
Figure 21 Distribution of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Intersection Type
Figure 22 Distribution of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Type of Roadway
Figure 23 Percentage of Vehicles Involved Speeding-related Fatal Intersection Crashes by Type of Roadway
Figure 24 Distribution of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Speed Limit (MPH) of Corresponding Approach
Figure 25 Percentage of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Speed Limit (MPH) of Corresponding Approach
Figure 26 Percentage of Drivers by Age and Gender Involved in Speeding-related Fatal Intersection Crashes
Figure 27 Distribution of Speeding-related Fatal Crashes by BAC
Figure 28 Percentage of Drivers Involved in Fatal Intersection Crashes by BAC
Figure 29 Distribution of Speeding-related Fatal Intersection Crashes by Time of Day
Figure 30 Percentage of Speeding-related Fatal Intersection Crashes by Time of Day
Figure 31 Distribution of Speeding-related Fatal Intersection Crashes by Hour of Day
Figure 32 Percentage of Fatal Intersection Crashes that are Speeding-related by Hour of Day
Figure 33 Distribution of Speeding-related Fatal Intersection Crashes by Roadway Surface Condition
Figure 34 Distribution of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Type of Vehicle
Figure 35 Percentage of Vehicles Involved in Speeding-related Fatal Intersection Crashes by Type of Vehicle
Figure 36 Distribution of Speeding-related Intersection Fatal Crashes by Crash Type
Figure 37 Distribution of Speeding-related Intersection Fatal Crashes by First Harmful Event
Figure 38 Distribution of Vehicles Involved Speeding-related Fatal Angle Crashes at Intersections by Speed Limit
Figure 39 Distribution of Drivers Involved in Speeding-related Fatal Angle Crashes at Intersections by BAC
Figure 40 Distribution of Vehicles Involved in Speeding-related Fatal Angle Crashes at Intersections by Roadway Surface Condition
Figure 41 Distribution of Vehicles Involved in Speeding-related Fatal Angle Crashes at Intersections by Vehicle Type
Figure 42 Distribution of Vehicles Involved in Speeding-related Fatal Rear-end Intersection Crashes by Speed Limit
Figure 43 Distribution of Drivers Involved in Fatal Rear-End Intersection Crashes that are Speeding-related by BAC
Figure 44 Distribution of Vehicles Involved in Speeding-related Fatal Rear-end Intersection Crashes by Roadway Surface
Figure 45 Distribution of Vehicles Types Involved in Speeding-related Fatal Rear-end Intersection Crashes
Figure 46 Distribution of Vehicles Involved in Speeding-related Fatal Left-turn Intersection Crashes by Speed Limit
Figure 47 Distribution of Drivers Involved in Speeding-related Fatal Left-turn Intersection Crashes by BAC
Figure 48 Distribution of Drivers Involved in Fatal Rear-End Intersection Crashes that are Speeding-related by BAC
Figure 49 Distribution of Vehicles Involved in Speeding-related Left-turn Intersection Fatal Crashes by Vehicle Type
Figure 50 Distribution of Vehicles Involved in Speeding-related Fatal Roadway Departure Crashes by Type of Roadway
Figure 51 Percentage of Vehicles Involved in Speeding-related Fatal Roadway Departure Crashes by Type of Roadway
Figure 52 Distribution of Vehicles Involved in Speeding-related Roadway Departure Fatal Crashes by Speed Limit (MPH) of Corresponding Approach
Figure 53 Percentage of Vehicles Involved in Speeding-related Fatal Roadway Departure Crashes by Speed Limit (MPH) of Corresponding Approach
Figure 54 Distribution of Vehicles Involved in Speeding-related Single-vehicle Roadway Departure Fatal Crashes by Speed Limit (mph) of Corresponding Approach
Figure 55 Distribution of Vehicles Involved in Speeding-related Fatal Roadway Departure Crashes by Curve Type
Figure 56 Percentage of Vehicles Involved in Speeding-related Fatal Roadway Departure Crashes by Horizontal Alignment
Figure 57 Percentage of Drivers Involved in Speeding-related Roadway Departure Fatalities by Driver Age and Gender
Figure 58 Distribution of Drivers Involved in Speeding-related Fatal Roadway Departure Crashes by BAC
Figure 59 Distribution of Speeding-related Fatal Road Departure Crashes by Time of Day
Figure 60 Distribution of Speeding-related Road Departure Fatal Crashes by Hour of Day
Figure 61 Percentage of Speeding-related Fatal Roadway Departure Crashes by Hour of Day
Figure 62 Distribution Vehicles Involved in Speeding-related Fatal Roadway Crashes by Roadway Surface Condition
Figure 63 Distribution of Vehicles Involved in Speeding-related Fatal Roadway Departure Crashes by Type of Vehicle
Figure 64 Percentage of Vehicles Involved in Speeding-related Fatal Roadway Departure Crashes by Type of Vehicle
Figure 65 Distribution of Fatal Speeding-related Roadway Departure Crashes by Crash Type
Figure 66 Distribution of Speeding-related Fatal Roadway Departure Crashes by First Harmful Event
Figure 67 Distribution of Vehicles Involved in Speeding-related Rollover/Overturn Fatal Crashes by Speed Limit
Figure 68 Distribution of Drivers Involved in of Speeding-related Rollover/Overturn Fatal Crashes by BAC
Figure 69 Distribution of Vehicles Involved in Speeding-related Rollover/Overturn Fatal Crashes by Roadway Surface Condition
Figure 70 Distribution of Vehicles Involved in Speeding-related Rollover/Overturn Fatal Crashes by Vehicle Type
Figure 71 Distribution of Vehicles Involved in Speeding-related Fatal Opposing Direction Crashes by Speed Limit
Figure 72 Distribution of Vehicles Involved in Speeding-related Fatal Opposing Direction Crashes by BAC
Figure 73 Distribution of Vehicles Involved in Speeding-related Fatal Opposing Direction Crashes by Roadway Surface
Figure 74 Distribution of Vehicles Involved in Speeding-related, Fatal, Opposing-Direction Crashes by Vehicle Type
Figure 75 Distribution of Vehicles Involved in Speeding-related, Tree-Impact, Fatal Crashes by Speed Limit
Figure 76 Distribution of Drivers Involved in Speeding-related Tree Impact Fatal Crashes by BAC
Figure 77 Distribution of Vehicles Involved in Speeding-related Tree Impact Fatal Crashes by Roadway Surface Condition
Figure 78 Distribution of Vehicles Involved in of Speeding-related, Tree-impact, Fatal Crashes by Vehicle Type
Figure 79 Distribution of Speeding-related Fatal Pedestrian and Bicycle Crashes by Location
Figure 80 Distribution of Speeding-related Fatal Pedestrian and Bicycle Crashes by Type of Roadway
Figure 81 Distribution of Vehicles Involved of Speeding-related Fatal Pedestrian and Bicycle Crashes by Posted Speed Limit
Figure 82 Percentage of Fatal Pedestrian and Bicycle Crashes that are Speeding-related by Posted Speed Limit
Figure 83 Distribution of Drivers Involved in All Fatal Pedestrian and Bicycle Crashes by Age and Gender
Figure 84 Distribution of Drivers Involved in Speeding-related Fatal Pedestrian and Bicycle Crashes by Age and Gender
Figure 85 Percentage of Speeding-related Fatal Pedestrian and Bicycle Crashes by Driver BAC
Figure 86 Distribution of Speeding-related Fatal Pedestrian and Bicycle Crashes by Time of Day
Figure 87 Distribution of Speeding-related Fatal Pedestrian and Bicycle Crashes by Hour of Day
Figure 88 Percentage of Speeding-related Fatal Pedestrian and Bicycle Crashes by Vehicle Type
Page last modified on May 23, 2016
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