Evaluating the safety benefits of railroad advance-warning signs
WD Berg, C Fuchs, J Coleman - Transportation research record, 1980 - safetylit.org
This paper presents the findings and conclusions of a study to develop an experimental
design and analysis plan for field testing and evaluation of the accident-reduction potential
of a proposed new railroad grade-crossing advance-warning sign. Several alternative
sampling frameworks were initially developed to determine which might offer the most-
efficient design in terms of required sample size. It was found that for a three-to five-year
data collection period, the sample size required to detect even a 5 percent reduction in …
design and analysis plan for field testing and evaluation of the accident-reduction potential
of a proposed new railroad grade-crossing advance-warning sign. Several alternative
sampling frameworks were initially developed to determine which might offer the most-
efficient design in terms of required sample size. It was found that for a three-to five-year
data collection period, the sample size required to detect even a 5 percent reduction in …
[HTML][HTML] Experimental Design for Evaluating the Safety Benefits of Railroad Advance Warning Signs
WD Berg - 1979 - rosap.ntl.bts.gov
The report presents the findings and conclusions of a study to develop an experimental
design and analysis plan for field testing and evaluation of the accident reduction potential
of a proposed new railroad grade crossing advance warning sign. Several alternative
sampling frameworks were initially developed to determine which might offer the most
efficient design in terms of required sample size. The cost of undertaking the field studies
and analyses was then evaluated so that it could be compared to the expected value or …
design and analysis plan for field testing and evaluation of the accident reduction potential
of a proposed new railroad grade crossing advance warning sign. Several alternative
sampling frameworks were initially developed to determine which might offer the most
efficient design in terms of required sample size. The cost of undertaking the field studies
and analyses was then evaluated so that it could be compared to the expected value or …
[ZITATION][C] Experimental Design for Evaluating the Safety Benefits of Railroad Advance Warning Signs. Final Report
WD Berg - 1979