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. Jim On 25 January 2017 at 15:00, Chris Johnson <[email protected]> wrote: > Writers need to think a little further on the efects of induced failure > of electronic systems. > > David <[email protected]> wrote: > > For example, if all the traffic lights in a CBD are networked back to a > central control system the traffic throughput might be amazing, but nothing > would move if the system failed. Or it was hacked. > > Sorry, this is a furphy: traffic can certainly move with no trafic > lights operating. Remember the policeman on point duty? a person can > easily control traffic, at the rate of one person per normal > intersection, with almost no training. > Worse than having inoperative lights would be hacked lights which > induced collisions, jamming the intersections, by showing random signals > or showing green in all directions. That is not part of the requirements > for this weapon. > > -- > Chris Johnson, Honorary AsPro ANU > > _______________________________________________ > Link mailing list > [email protected] > http://mailman.anu.edu.au/mailman/listinfo/link > _______________________________________________ Link mailing list [email protected] http://mailman.anu.edu.au/mailman/listinfo/link
