Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings (2026)

Chapter: 8 Level 4 Crash Estimates Using Machine Vision Data

Previous Chapter: 7 Level 3 Point Estimates of Average Crash Frequency
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 107
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 108
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 109
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 110
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 111
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 112
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 113
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 114
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 115
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 116
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 117
Suggested Citation: "8 Level 4 Crash Estimates Using Machine Vision Data." National Academies of Sciences, Engineering, and Medicine. 2026. Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings. Washington, DC: The National Academies Press. doi: 10.17226/29286.
Page 118
Next Chapter: 9 Safety Effectiveness Framework and Tool Development
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