详情

原文传递 STATISTICAL TEST OF DIFFERENCE BETWEEN EXPECTED ACCIDENT FREQUENCIES.

题名：	STATISTICAL TEST OF DIFFERENCE BETWEEN EXPECTED ACCIDENT FREQUENCIES.
作者：	Hauer-E
关键词：	HIGHWAY-SAFETY; STATISTICAL-HYPOTHESIS-TESTING; EXPECTED-ACCIDENT-FREQUENCIES; DETECTION-; SAFETY-DETERIORATION
摘要：	A primer on the testing of some common statistical hypotheses in road safety is presented. The basic notions of statistical hypothesis testing are reviewed and applied to the specific circumstance when one wishes to test a statistical hypothesis about a change in the expected accident frequency beyond what is the result of a change in traffic and similar influences. The hope is that this exposition will illumine the meaning and intricacy of such tests, inform the decision about when such tests are called for, help users choose the right significance or power, and, because software is now available, improve practice in this matter. A companion paper on the detection of deterioration in safety makes use of the foundation provided.
总页数：	Transportation Research Record. 1996. (1542) pp24-29 (1 Fig., 4 Tab., 4 Ref.)
报告类型：	科技报告