Louis Challis b. 1936

  • Designer
Challis was an engineer with a graduate degree in architectural science, specialising in acoustics. Working with David Wood, Nielsen Design Associates and others, he was a key team member in the development of the NSW Dept of Main Roads' PB/5 pedestrian button, a “Audio-Tactile Pedestrian Detector” (ATPD). This device was developed in the 1970s and remains in use.
You are viewing the version of bio from June 22, 2017, 4:27 p.m. , as edited by Michael Bogle (moderator approved).
Go to current record
Would you like to add an editable biography for Louis Challis? You can add one here.

Difference between this version and previous

Field This Version Previous Version
Date modified June 22, 2017, 4:27 p.m. June 22, 2017, 4:25 p.m.
References [<ExternalResource: Darren Challis. "Louis Challis.," obituary, Sydney Morning Herald, 21 une 2017, p.38>, <ExternalResource: Miles Park. "The PB/5 pedestrian button." >] [<ExternalResource: Darren Challis. "Louis Challis.," obituary, Sydney Morning Herald, 21 une 2017, p.38>]