[LINK] Electromagnetic pulse artillery shell

[Brenda Aynsley]

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

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