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TABLE OF CONTENTS

Title Page

Technical Documentation Page

1. INTRODUCTION
   
2. OVERVIEW
   • 2.1 Project Partners
   • 2.2 Project Overview
   • 2.3 Overview of Results, Accomplishments and Findings
     
3. PROJECT DESCRIPTION AND RESULTS
   • 3.1 IVM and CET Installation Summary
     • 3.1.1 IVM Installations
     • 3.1.2 CET Installations
   • 3.2 Participant Outreach
   • 3.3 ACN and CET Crashes
     • 3.3.1 ACN Crashes
     • 3.3.2 CET Crashes
   • 3.4 ACN False Positive Alarms and False Negative Crashes
     • 3.4.1 False Positive Alarms
     • 3.4.2 False Negative Crashes
   • 3.5 ACN Reliability
   • 3.6 System Maintenance and Upgrades
     
4. ANALYSIS AND EVALUATION
   • 4.1 ACN Crashes: Reported and Reconstructed Data
   • 4.2 ACN Crash Location and Vehicle Heading Accuracy
   • 4.3 Assessment of Agreement between ACN Reported Crash Parameters and Reconstruction
     • 4.3.1 Case-By-Case Comparisons
     • 4.3.2 ACN Accuracy
   • 4.4 ACN Crash Response Time Analysis
     
5. CONCLUSIONS
   
6. BIBLIOGRAPHY

Appendix A – Participant Outreach Material 

List of Acronyms and Abbreviations

List of Tables

• 3-1. Results of CET Participant Survey 
• 3-2. Summary of ACN and CET Installations and Crashes 
• 3-3. Number of Crashes
• 3-4. ACN In-Vehicle Module Reliability
• 3-5. ACN System Reliability
• 3-6. Maintenance Categories
• 3-7. IVM Software Releases
• 4-1. Comparison of ACN Reported Crash Parameters with those Derived by the Crash Investigator
• 4-2. ACN Crash Location Accuracy
• 4-3. Summary of ACN Reporting Accuracy
• 4-4. Conspicuity Index
• 4-5. Conspicuity Indices for ACN Crashes
• 4-6. Conspicuity Indices for CET Crashes

List of Figures

• 2-1. ACN Operational System Overview
• 3-1. Net IVM Installations/De-installations by Month (bars) and Total IVMs in Service
• 3-2. IVM Days-in-the-Field
• 3-3. Net CET Installations/De-installations by Month (bars) and Total CETs in Service
• 3-4. CET Days-in-the-Field
• 3-5. Locations of ACN and CET Crashes Experienced During the FOT
• 3-6. Occurrence of ACN Incidents and Crashes
• 3-7. Occurrence of CET Incidents and Crashes
• 4-1. The Ease of Locating an ACN Crash
• 4-2. Histogram of ACN and CET Crash Notification Times
• 4-3. Histogram of Actual and Simulated ACN Crash Notification Times
• 4-4. Notification Time versus Conspicuity Index