CCTV - case study traffic management highway tunnel

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11th International Symposium on Human Factors in Organisational Design and Management (ODAM 2014) CPH Conference

CCTV - case study traffic management highway tunnel
Author:Kirsten B.J. SCHREIBERS (INTERGO human factors & ergonomics, The Netherlands)
Joost L.A. BOUCHIER (Dutch Ministry of Infrastructure and the Environment, The Netherlands)
Date: 2014-08-18     Track: A -Special sessions     Session: A3 - Human factors guidelines for CCTVcontrol centre design – part II

For traffic managers supervising a newly built highway tunnel the existing individual video wall with four 30"LCD-TFT displays was replaced by six 46" LCD-TFT displays. Obvious deterioration of some video wall qualities occurred: smaller images, lower resolution, twofold increase of monitor luminance (risk of glare). However the traffic managers were much happier. Which parameter really influences perceived image quality?