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Driverless cars and traffic lights

PostPosted: Tue Aug 30, 2016 6:02 pm
by buffy
While we were driving around in Melbourne over the weekend, a question occurred to me. How would driverless cars cope with those large intersections controlled by a conglomeration of traffic lights and red and green arrows and stuff? We considered that they might take their cue from the control boxes, but I doubt the infrastructure is really set up for that.

I've asked this in the Holiday Forum but I've pretty much just been told how fabulous computers are and all that and that lots of companies are working on it. And that if they can do facial recognition they can do this. I still am inclined to think that this level of discrimination of the visual noise is unlikely to be currently possible.

I take my suspicions from the poor progress in producing artificial retinal components.

Re: Driverless cars and traffic lights

PostPosted: Wed Aug 31, 2016 10:10 am
by fsm
Current driverless cars use video cameras to read traffic lights and this may be the cause of problems in the near future.

Eventually, when driverless cars become common, the cars will communicate with each other and a traffic management system so as to allow cars to continuously negotiate road crossings without the need for any traffic lights. As a car approaches an intersection it will arrange for a 'slot' to be available to pass through. Both roads at an intersection will flow with little or no interruption.

Re: Driverless cars and traffic lights

PostPosted: Wed Aug 31, 2016 9:33 pm
by buffy
Thanks. I think that sounds optimistic.

Re: Driverless cars and traffic lights

PostPosted: Wed Aug 31, 2016 9:47 pm
by Helix
I can get the driverless cars communicating at traffic lights to smooth out traffic flow. But what happens when pedestrians want to cross?

Re: Driverless cars and traffic lights

PostPosted: Thu Sep 01, 2016 12:49 pm
by Helix
It just occurred to me that pedestrian traffic is the easiest to solve: bridges. With ramps, of course, for limited mobility access.

Carry on.

Re: Driverless cars and traffic lights

PostPosted: Mon Sep 05, 2016 8:31 am
by roughbarked
Helix wrote:It just occurred to me that pedestrian traffic is the easiest to solve: bridges. With ramps, of course, for limited mobility access.

Carry on.

and or undepasses.

Re: Driverless cars and traffic lights

PostPosted: Tue Sep 06, 2016 3:01 pm
by Helix
roughbarked wrote:
Helix wrote:It just occurred to me that pedestrian traffic is the easiest to solve: bridges. With ramps, of course, for limited mobility access.

Carry on.

and or undepasses.



I considered that, but bridges are cheaper and easier to build*.


* In my long experience as Not an Engineer.