Helmet Law Review Search Your State Pull AL AK AZ AR CA CO CT DE FL GA HI ID IL IN IA KS KY LA ME MD MA MI MN MO MS MT NE NV NH NJ NM NY NC ND OH OK OR PA RI SC SD TN TX UT VT VA WA WV WI WY

 Site Search
Helmet Law QuikVu
Studies & Stats
Helmet Issues
National News
California
State Legislatures
State DMV Links
NHTSA
Press & Publicity
Archives
Backfire! Letters
International
Credits
Website Design
Email FAQ
BRO Store
STOP Junkmail The Effect of Motorcycle Helmet Use on the Probability
of Fatality and the Severity of Head And Neck Injuries

Appendix A

 D qualitative variable; D = 1 if operator died as a result of injuries sustained in accident, D = 0 otherwise D = 0.048. HS = where N is the number of head injuries incurred. NS = where K is the number of neck injuries sustained. K1 = .5MV2, measured in foot pounds, where M (measured in slugs) = WT/g, where WT is the weight of the operator measured in pounds and g is the gravitational constant measured in ft/sec2. V is the crash speed of the motorcycle measured in ft/sec. K1 = 3506.33. K2 = .5MV2, measured in foot-pounds, where V is the relative velocity of the motorcycle and other vehicle. K2 = 3793.39. H "qualitative variable; H = 1 if operator wore a helmet, H = 0 otherwise. H = 0.43." HI interaction variable equal to product of H and I where I is the normal component of impact velocity to the helmet measured in miles per hour. HI = 3.64. A age of operator measured in number of years. A = 26.25. BA blood alcohol level corrected to time of accident, measured in number (integer) of hundredths of 1% of blood alcohol, 0 < BA < 31. BA = 0.62. EA "qualitative variable, EA = 1 if evasive action was attempted by the operator and if the action was considered appropriate for the situation. EA = 0.33." EX EX = EX for 0 < EX < EX* and EX = EX* otherwise. EX* = 96 and EX = 44.44. HW interaction variable equal to product of H and W where W is the weight of the helmet in pounds. HW = 1.16.

| Highlights | Goldtein Study | Bibliography | Footnotes |
| Appendix A | Appendix B
|

© Copyright Jonathan P. Goldstein Ph.D. 1986. All Rights Reserved.

Bikers Rights Store

 © Copyright 2013 Sasnet Design. All Rights Reserved.

Last updated: