Evaluation of Wind-Driven Retroreflective Taxiway Edge Markers.
Abstract
An innovative taxiway edge retroreflective marker, designed to rotate when there is sufficient wine, was evaluated to determine whether the markers would provide adequate visual guidance at night while rotating and when stationary, and whether the innovative rotating feature adds to or detracts from the guidance value. The markers consist of a plastic can or cylinder, 6 1/4 inches by 8 inches tall, mounted on plastic Polyvinyl Chloride (PVC) pipe. Wind collector vanes on the cylinder are used to rotate the cylinder when winds are above approximately 8 knots. Light is reflected at night from retroreflective bands of yellow and blue material and from glass beads imbedded in the painted material. The retroreflective bands of material are staggered vertically producing motion or movement both when rotating horizontally and vertically. The test results concluded that the wind-driven edge makers adequately define the taxiway and provided adequate visual guidance for taxiing while the markers were stationary and when rotating during daylight hours and at night.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1982
- Accession Number
- ADA124568
Entities
People
- Guy S. Brown
Organizations
- Federal Aviation Administration