CATENARY LANTERNS FOR WIDE ROADS

DETAILS ARE GIVEN OF AN INCREASINGLY USED LIGHTING SYSTEM WHICH USES LANTERNS SUSPENDED AXIALLY FROM LONGITUDINAL CATENARY CABLES OVER THE CENTRAL RESERVATION ON WIDELY-SPACED MASTS. EXCELLENT VISUAL GUIDANCE IS PROVIDED, ESPECIALLY AT BENDS AND JUNCTIONS, AND THE SYSTEM GIVES UNIFORMITY IN VERTICAL ILLUMINATION. RESULTS OBTAINED BY THE LIGHTING DIVISION OF THE MINISTRY OF TRANSPORT IN THE HAGUE ON AN EXPERIMENTAL INSTALLATION ARE PRESENTED. THE AIM WAS TO FIND CATENARY-LIGHTING FITTINGS CAPABLE OF LIGHTING VERY WIDE ROADS. TWO TYPES OF FITTINGS WERE TESTED. THE FITTINGS, BOTH OF THEM HOUSING LOW-PRESSURE SODIUM LAMPS, WERE SUSPENDED AT A HEIGHT OF 15M ABOVE THE GROUND AT 18M INTERVALS. THE DISTANCE BETWEEN THE MASTS WAS 90M. THE RESULTS WERE MOST ENCOURAGING. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00207853
• Corporate Authors:

  Foundation Prometheus

  NZ Voorhurgwal 271-273
  Amsterdam C,   Netherlands 

  Foundation "Prometheus"

  NZ Voorburgwal 271-273
  Amsterdam C,   Netherlands 
• Authors:
  • Tan, T H
• Publication Date: 1972

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 17-9
• Serial:
  • International Lighting Review
  • Volume: 23
  • Issue Number: 1
  • Publisher: Stichting Prometheus
  • ISSN: 0020-7853

Subject/Index Terms

• TRT Terms: Cables; Catenaries (Railroads); Columns; Highways; Medians; Sodium vapor lamps; Street lighting; Visibility; Width
• Old TRIS Terms: Sodium lamps; Test results
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00203918
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: TRIS
• Created Date: Jun 19 1974 12:00AM