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by **coyttl** on Wed Jul 24, 2013 8:37 am

So, you ever have one of those *senior* moments? (Okay, dumb question, as most users here seem to have just gotten their driver's licenses..! :doh:

)

I recently read an article on Signal Preemption, doing some research (since one of my new crossings may require it..) and came across the "ATC" standard. For some reason it's scratching at my brain - I know this, or used to, but at the moment I'm hitting a wall.

I'm rather familiar with NEMA, and know of 2070 and related variants.. What's the ATC architecture consist of? The document I read treated it as a separate entity than 2070 and NEMA.

--Me.

by **techtiques** on Wed Jul 24, 2013 9:50 am

http://www.ite.org/standards/atc/

by **RunsWithCrouse-Hinds** on Wed Jul 24, 2013 11:38 am

ATC actually encompasses both NEMA and 2070 platforms...in short, it's a switch to a Linux-based operating system for traffic controllers and other devices. Econolite's new Cobalt controller is an ATC device, and the new Caltrans-defined 1C CPU module for 2070 controllers is also ATC. Truthfully I'm not sure what it's trying to achieve, but I think it's sort of an all-encompassing thing to try to make traffic control-related devices in general less divergent in terms of hardware/software platform.

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