LIGHTING IN AMSTERDAM'S IJ-TUNNEL

AMSTERDAM'S IJ-TUNNEL HAS A THRESHOLD ZONE TO ELIMINATE THE 'BLACK HOLE' EFFECT AT THE ENTRANCE, THEN A TRANSITION ZONE I (AVERAGE LUMINANCE: 65 CD/SQ. M; AVERAGE HORIZONTAL ILLUMINATION: 1 200 LUX), A TRANSITION ZONE II (31 CD/SQ. M; 540 LUX) AND THE CENTRAL ZONE (13.6 CD/SQ. M; 270 LUX). THE AVERAGE LUMINANCE LEVELS IN THE VARIOUS ZONES ARE AUTOMATICALLY ADJUSTED IN ACCORDANCE WITH THE ILLUMINATION LEVEL OUTSIDE. LIGHT-SENSITIVE DETECTOR CELLS MONITOR TRAFFIC FLOW, AND IMMEDIATELY INFORM CENTRAL CONTROL OF CONGESTION OR STALLED VEHICLES. /RRL/A/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00410683
• Supplemental Notes:
  • Vol 11, No 9, PP 436-438, 1 FIG, 4 PHOT, 2 REF
• Publication Date: 1970-1

Media Info

• Serial:
  • Traffic Engineering & Control
  • Publisher: Hemming Group, Limited
  • ISSN: 0041-0683
  • Serial URL: http://www.tecmagazine.com/

Subject/Index Terms

• TRT Terms: Adjustment factors; Automation; Brightness; Equipment maintenance; Lighting; Lighting systems; Traffic flow; Tunnels
• Uncontrolled Terms: Equipment adjustment
• Old TRIS Terms: Tunnel lighting
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Safety and Human Factors;

Filing Info

• Accession Number: 00220175
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Nov 18 1970 12:00AM