In January/February 1993, an optical visibility meter was installed in the Vaere Tunnel. Examination of printouts from this instrument shows that a Meteorological Optical Range (MOR) of less than 300 meters was recorded in extremely few cases (300 m was set as a threshold on the basis of visual evaluations in the Vaere Tunnel). This suggests that the relationship between what the visibility meter registers and what motorists experience is weak. This report proposes control values for visibility for different ventilation fan setting, based on subjective estimates of visibility in the Vaere Tunnel.
Using Optical Visibility Meters in Road Tunnels: Experience from the Vaere Tunnel
1995
27 pages
Report
No indication
English
Hvor store bør skip være/ av E. Abrahamsen
TIBKAT | 1964
|A comparison of the tunnel ventilation systems for railway tunnels and road tunnels
Tema Archive | 2003
|British Library Conference Proceedings | 1996
|Robotvenskab: Kan en robot være en ven? ; Robot friendship: Can a robot be a friend?
BASE | 2014
|