Impact of Partial Graduated Driver’s License Program on Teen Motor Vehicle Crashes in Kentucky

Abstract

Teen-driver motor vehicle crashes (MVCs), MVC-related injuries, and MVC-related costs before (1993-1995) and after (1997-1999) the implementation of the teen driver licensing (TDL) program in Kentucky are evaluated. Data collected as part of the study are used to recommend actions to enhance the effectiveness of Kentucky’s TDL program. The study involved the analysis of teen crash data pre-TDL and post-TDL by using data from the Kentucky Accident Reporting System database and the Kentucky Transportation Cabinet driver license file. The study also involved analysis of crash data in relation to crash costs by using the CrashCost software program. Findings indicate that implementation of the TDL program in Kentucky resulted in a substantial (32 percent) reduction in MVC rates for 16-year-old drivers from before the TDL program and a similar reduction in crashes after midnight, fatal crashes, and injury crashes for the 16-year-old age group. Cost analysis indicates an estimated annual reduction of $34.2 million in 16-year-old teen-driver MVC-related expenses. However, after a dramatic reduction in the number of crashes for ages 16 to 16.5 (learner permit stage), the number of crashes rose sharply for ages 16.5 to 17, when drivers may have progressed to independent driving. There were no decreases in crash rates for 17- and 18-year-old drivers under the TDL program. Results from this study indicate a need for more effective measures to decrease MVCs for ages 16.5 to 18, such as upgrading to a full graduated driver licensing program.

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References

Insurance Institute for Highway Safety. U.S. Licensing Systems for Young Drivers. Highway Loss Data Institute. June 23, 2000. http://highwaysafety.org/safety_facts/state_laws/grad_license.htm.

Mayhew

D. R.

, Simpson

H. M.

, and des Groseilliers

Impact of the Graduated Driver Licensing Program in Nova Scotia. Traffic Injury Research Foundation, Ottawa, Ontario, Canada, 1999.

Saving Teenage Lives: The Case for Graduated Driver Licensing. NHTSA, U.S. Department of Transportation, 1998.

Ulmer

R. G.

, Preusser

D. F.

, and Williams

A. F.

Effect of Florida’s Graduated Licensing Program on the Crashes of Teenage Drivers. Insurance Institute for Highway Safety, Arlington, Va., 1999.

McKnight

A. J.

, Hyle

, and Albrecht

Youth License Control Demonstration Project. Report DOT-HS-7-01765. NHTSA, U.S. Department of Transportation, 1983.

Hagge

R. A.

, and Marsh

W. C.

An Evaluation of the Traffic Safety Impact of Provisional Licensing. Report CAL-DMV-RSS-88-116. California Department of Motor Vehicles, Sacramento, 1988.

Jones

The Effectiveness of Provisional Licensing in Oregon: An Analysis of Traffic Safety Benefits. Journal of Safety Research, Vol. 25, No. 1, 1994, pp. 33–46.

Ulmer

R. G.

, Preusser

D. F.

, Ferguson

S. A.

, and Williams

A. F.

Teenage Crash Reduction Associated with Delayed Licensure in Louisiana. Journal of Safety Research, Vol. 30, No. 1, 1999, pp. 31–38.

Boase

, and Tasca

Graduated Licensing System Evaluation: Interim Report ’98. Ministry of Transportation of Ontario, Toronto, Ontario, Canada, 1998.

10.

Langley

J. D.

, Wagenaar

A. C.

, and Bragg

D. J.

An Evaluation of the New Zealand Graduated Drivers Licensing System. Accident Analysis and Prevention, Vol. 21, No. 2, 1996, pp. 33–46.

11.

Ulmer

R. G.

, Ferguson

S. A.

, Williams

A. F.

, and Preusser

D. F.

Teenage Crash Reduction Associated with Delayed Licensure in Connecticut. Insurance Institute for Highway Safety, Arlington, Va. http://www.high-waysafety.org.

12.

Foss

R. D.

Preliminary Evaluation of the North Carolina Graduated Driver Licensing System: Effects on Young Driver Crashes. Highway Safety Research Center, University of North Carolina, Chapel Hill, 2000. http://www.hsrc.unc.edu.

13.

State Legislative Fact Sheets: Graduated Driver Licensing System. National Highway Traffic Safety Administration, U.S. Department of Transportation, March 1999. http://www.nhtsa.dot.gov/people/outreach/stateleg/graduated.html.

14.

Preusser

D. F.

, Williams

A. F.

, Zador

P. L.

, and Bloomberg

R. D.

The Effect of Curfew Laws on Motor Vehicle Crashes. Law & Policy Quarterly, Vol. 6, 1984, pp. 115–128.

15.

Williams

A. F.

Laws and Regulations Applicable to Teenagers or New Drivers: Their Potential for Reducing Motor Vehicle Injuries. In Young Driver Accidents: In Search of Solutions ( Mayhew

D. R.

, Simpson

H. M.

, and Donelson

A. C.

, eds.), Traffic Injury Research Foundation of Canada, Ottawa, Ontario, 1985.

16.

Preusser

D. F.

, Zador

P. L.

, and Williams

A. F.

The Effect of City Curfew Ordinances on Teen Motor Vehicle Fatalities. Accident Analysis Prevention, Vol. 25, 1993, pp. 641–645.

17.

Williams

A. F.

, and Preusser

D. F.

Night Driving Restrictions for Youthful Drivers: A Literature Review and Commentary. Journal of Public Health Policy, Vol. 18, 1997, pp. 334–345.

18.

Smith

Effect of Low Proscribed Blood Alcohol Levels on Traffic Accidents Among Newly Licensed Drivers. Medical Science and Law, Vol. 26, No. 2, 1986, pp. 144–148.

19.

Hingson

, Heeren

, Howland

, and Winter

Effects of Lower Legal Blood Alcohol Limits for Young and Adult Drivers. Alcohol, Drugs and Driving, Vol. 10, 1995, pp. 243–252.

20.

Miller

T. R.

, Lestina

D. C.

, and Spicer

R. S.

Highway Crash Cost in the United States by Driver Age, Blood Alcohol Level, Victim Age, and Restraint Use. Accident Analysis and Prevention, Vol. 30, No. 2, 1998, pp. 137–150.

21.

Agent

K. R.

, Stamatiadis

, and Pigman

J. G.

KTC-98-11 Evaluation of Kentucky’s Driver License Point System. Report KYSPR-98-184. Kentucky Transportation Center, Frankfort, 1998.

22.

Preusser

D. F.

, Ferguson

S. A.

, and Williams

A. F.

The Effect of Teenage Passengers on the Fatal Crash Risk of Teenage Drivers. Accident Analysis and Prevention, Vol. 30, No. 2, 1998, pp. 217–222.

23.

Aldridge

, Himmler

, Aultman-Hall

, and Stamatiadis

Impact of Passengers on Young Driver Safety. In Transportation Research Record: Journal of the Transportation Research Board, No. 1693, TRB, National Research Council, Washington, D.C., 1999, pp. 25–30.

24.

Chen

L.-H.

, Baker

S. P.

, Braver

E. R.

, and Guohua

Carrying Passengers as a Risk Factor for Crashes Fatal to 16- and 17-Year-Old Drivers. Journal of the American Medical Association, Vol. 283, No. 12, 2000, pp. 1578–1582.

25.

Williams

A. F.

Graduated Licensing Comes to the United States. Injury Prevention, Vol. 5, 1999, pp. 133–135.

26.

Foss

R. D.

, and Evenson

K. R.

Effectiveness of Graduated Driver Licensing in Reducing Motor Vehicle Crashes. American Journal of Preventive Medicine, Vol. 16, 1999.

27.

Begg

D. J.

, Langley

J. D.

, Reeder

A. I.

, and Chalmers

D. J.

The New Zealand Graduated Driver Licensing System: Teenagers’ Attitudes Towards and Experiences with This Car Driver Licensing System. Injury Prevention, Vol. 1, 1995, pp. 177–181.

28.

Frith

W. J.

, and Perkins

W. A.

The New Zealand Graduated Driver Licensing System. National Road Safety Seminar, Wellington, New Zealand: Seminar Papers, Vol. 2, 1992, pp. 256–278.

29.

Phebo

, and Dellinger

A. M.

Young Driver Involvement in Fatal Motor Vehicle Crashes and Trends in Risk Behaviors, United States, 1988–1995. Injury Prevention, Vol. 4, 1998, pp. 284–287.

30.

Blincoe

L. J.

Estimating Crash Costs in State or Local Jurisdictions. Report DOT-HS-808-135. NHTSA, U.S. Department of Transportation, 1994.

31.

Blincoe

L. J.

The Economic Cost of Motor Vehicle Crashes. NHTSA, U.S. Department of Transportation. 1994. http://www.nhtsa.dot.gov/people/economic/ecomvc1994.html.

32.

Williams

A. F.

, Preusser

D. F.

, Ulmer

R. G.

, Weinstein

H. B.

Characteristics of Fatal Crashes of 16-Year-Old Drivers: Implications for Licensure Policies. Journal of Public Health Policy, Vol. 16, No. 3, 1995, pp. 347–360.