On 25/01/17 14:51, Jim Birch wrote:
Traffic lights are designed as state sets so that they can't show
incompatible signals, eg, green in all directions, even if a control fault
occurs or they are hacked. That would require a physical rewiring at the
control box. This is basic design safety and has been around for a long
time.
It should be possible to create so good traffic jams by hacking central
traffic controls but you won't create a double green signal.
gee the things you learn on this list
thanks guys
cheers
brenda
--
Brenda Aynsley OAM, FACS CP, ACS Honorary Life Member
ACS Immediate Past President 2016 & 2017
Chair IFIP International Professional Practice Partnership (IP3) 2011-16
Senior Vice President, Professions Australia 2015-2016
ACS Partnering for Success
Mobile:+61(0)412 662 988 || Phone:+61(0)8 7127 0107
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