DOT HS 812 803 June 2020 (update) Crash Investigation Sampling System 2017 Analytical User’s Manual This publication is distributed by the U.S. Department of Transportation, National Highway Traffic Safety Administration, in the interest of information exchange. The opinions, findings, and conclusions expressed in this publication are those of the author(s) and not necessarily those of the Department of Transportation or the National Highway Traffic Safety Administration. The United States Government assumes no liability for its content or use thereof. If trade or manufacturers’ names or products are mentioned, it is because they are considered essential to the object of the publication and should not be construed as an endorsement. The United States Government does not endorse products or manufacturers. Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No. DOT HS 4. Title and Subtitle 5. Report Date Crash Investigation Sampling System July 2019 2017 Analytical User’s Manual 6. Performing Organization Code NSA-100 7. Authors 8. Performing Organization Report No. Gregory A. Radja, NSA-130 Eun-Young Noh, NSA-210 Fan Zhang, NSA-210 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) Office of Data Acquisition National Center for Statistics and Analysis 11. Contract or Grant No. National Highway Traffic Safety Administration 1200 New Jersey Avenue SE Washington, DC 20590 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered National Highway Traffic Safety Administration . 1200 New Jersey Avenue SE 14. Sponsoring Agency Code Washington, DC 20590 15. Supplementary Notes 16. Abstract The Crash Investigation Sampling System (CISS) provides a comprehensive national traffic crash database. Data collection is accomplished at 24 geographical sites, called Primary Sampling Units (PSUs). These data are weighted to represent all police reported motor vehicle crashes occurring in the USA during the year involving passenger cars, light trucks and light vans that were towed. The Crash Investigation Sampling System (CISS) is the replacement of the National Automotive Sampling System Crashworthiness Data System (NASS/CDS). CISS provides comprehensive national traffic crash information. This manual and the CISS 2017 Coding and Editing Manual are part of the primary documentations supporting the 2017 CISS data files. This document provides a detailed description of data element definitions and their attributes. 17. Key Words 18. Distribution Statement CISS, data elements, data attributes, analytical user’s manual Document is available to the public from the National Technical Information Service, www.ntis.gov 19 Security Classif. (of this report) 20. Security Classif. (of this page) 21 No. of Pages 22. Price Unclassified Unclassified 460 Form DOT F 1700.7 (8-72) Reproduction of completed page authorized CISS Analytical User’s Manual Page 2 TABLE OF CONTENTS SECTION 1...................................................................................................................... 1 INTRODUCTION ......................................................................................................... 1 SECTION 2...................................................................................................................... 3 MAJOR CHANGES FROM 2015 CDS TO 2017 CISS ................................................ 3 SECTION 3...................................................................................................................... 5 CISS SAMPLE DESIGN, WEIGHTING, AND ESTIMATION ........................................... 5 SECTION 4.................................................................................................................... 10 Data Elements Definitions and Codes ........................................................................... 10 Common Data Elements............................................................................................ 10 CASE IDENTIFIER ................................................................................................ 10 PSU........................................................................................................................ 10 SEQUENTIAL CASE NUMBER ............................................................................. 10 CASE NUMBER ..................................................................................................... 10 CATEGORY ........................................................................................................... 11 VEHICLE NUMBER ............................................................................................... 11 VERSION NUMBER .............................................................................................. 11 CASE WEIGHT ...................................................................................................... 11 PSU STRATA......................................................................................................... 11 The CRASH Data Files .............................................................................................. 12 CRASH Dataset ..................................................................................................... 12 EVENT Dataset ...................................................................................................... 18 JKWGT Dataset ..................................................................................................... 24 The GENERAL VEHICLE Data Files ......................................................................... 26 GV Dataset ............................................................................................................ 26 DISTRACT Dataset ................................................................................................ 65 PRE_FHE Dataset ................................................................................................. 67 CISS Analytical User’s Manual Page i VEHSPEC Dataset................................................................................................. 68 VINDERIVED Dataset ............................................................................................ 73 The EXTERIOR VEHICLE Data Files ........................................................................ 76 CDC Dataset .......................................................................................................... 76 TIREPLAC Dataset ................................................................................................ 93 TIRE Dataset ......................................................................................................... 97 TIREDAMAGE Dataset ........................................................................................ 104 AVOID Dataset..................................................................................................... 105 FUEL Dataset....................................................................................................... 107 FIRE Dataset ....................................................................................................... 111 EDRCOLLECT Dataset ........................................................................................ 113 EDRSUMM Dataset ............................................................................................. 115 EDREVENT Dataset ............................................................................................ 117 EDRREST Dataset............................................................................................... 121 EDRPRECRASH Dataset .................................................................................... 132 EDRPOSTCRASH Dataset .................................................................................. 135 VEHMEAS Dataset .............................................................................................. 137 The INTERIOR VEHICLE Data Files ....................................................................... 145 ADAPT Dataset .................................................................................................... 146 GLAZING Dataset ................................................................................................ 147 INTEGRITY Dataset............................................................................................. 150 INTERIOR Dataset............................................................................................... 151 INTRUSION Dataset ............................................................................................ 161 OCCONTACT Dataset ......................................................................................... 165 The PERSON Data Files ......................................................................................... 172 OCC Dataset ........................................................................................................ 172 SEAT Dataset ...................................................................................................... 202 SEATXBAG Dataset ............................................................................................ 210 AIRBAG Dataset .................................................................................................. 211 CHILDSEAT Dataset ............................................................................................ 220 EJECT Dataset ...................................................................................................