ON-SCENE TRAFFIC ACCIDENT INVESTIGATORS'MANUALPDF电子书下载

1. INTRODUCTION TO ON-SCENE TRAFFIC ACCIDENT INVESTIGATION 3

Personnel Selection and Training 3

Investigators' Responsibilities 3

Collecting Facts and Information 3

Objectives of an On-Scene Investigation 4

Investigators' Inventory 4

2. THE ACCIDENT 6

Accident Defined 6

Series of Events 7

3. INVESTIGATION PROCEDURES 9

Planning the Investigation 9

Receiving the Report of an Accident 9

Proceeding to the Scene 9

Arrival at the Scene 10

Leaving the Scene 13

4. THE HUMAN ELEMENT 15

5. QUESTIONING DRIVERS AND WITNESSES 20

Driver, Passenger and Witness Information 22

Interviewing Drivers and Witnesses 23

Questioning to Clarify Issues 24

6. ENVIRONMENTAL FACTORS 30

Highway Defined 30

Environment 30

Highway Examination 30

Weather Conditions 35

7. HIGHWAY AND VEHICLE MARKS AND DAMAGES 37

Highway Damage 37

Vehicle Damage 42

Matching Damages 44

Tire Marks 51

Skid and Sideslip Marks 58

Skid Marks 63

Yaw and Sideslip Marks 69

Debris 71

8. VEHICLE MECHANICAL INSPECTION 73

Expert Exarnination 73

Mechanical Inspection 74

9. PHOTOGRAPHY 100

10. FAILURE TO REMAIN AT SCENE OF ACCIDENT 106

11. FIELD SKETCHES, MAPS AND DIAGRAMS 113

Field Sketch 113

Measuring the Scene 116

Grade 118

Methods of Measuring 119

Measuring Curves and Intersections 122

Measuring into Lakes and Rivers 130

12. SPEED ESTIMATES 132

Professional Reconstructionist 132

Skid Mark Measurements 132

Coefficient of Friction 135

Testing for Coefficent ot Friction 135

Speed from Skid Marks 140

Speed from Yaw or Sideslip 152

Speeds from Falls, Flips and Vaults 168

References 175

Bibliography 177

Index 179