Investigation of Retroreflective Sign Materials at Passive Railroad Crossings

摘要

Five configurations for marking crossbucks and posts were developed and installedat five passive grade crossings on the Virginia Southern Railroad line between Fort Mitchell and Green Bay, Virginia. At each crossing, photographs of each approach were taken at night using only the low beams and high beams of a vehicle for illumination. To supplement the photographs, researchers videotaped driving through the crossings at night. Each location was driven through twice, once with low beams and once with high beams. Researchers also videotaped a train traveling through each crossing. The photographs and videotape were used as the media for a subjective analysis of which of the five systems was most visible at night. The subjective analysis consisted of one-on-one interviews with 19 individuals watching the videotapes of the systems and answering a questionnaire survey.