The Extra Mile Blog says "HERO Master Operator program was initiated in 2016. They are responsible for patrolling, security sweeping and reversing traffic on the state’s I-75 South Metro Reversible Express Lanes in Cobb, Henry and Clayton counties." The unit IDs I am hearing on what I've labeled Northwest and South channels, match up with IDs in the table on page 4 at http://www.dot.ga.gov/AboutGeorgia/Board/Board Meeting Documents/TheHEROProgramat25.pdf for "Master Operator N" and "Master Operator S" respectively. So those channels are used by the Master Operators that patrol the I-75 toll lanes north and south of the city, respectively. Unclear whether they also patrol the I-75 main line in those areas - it seems like it. In any event, these two channels may be called something other than "Bravo Dispatch," "Charlie Dispatch" or "Delta Dispatch" because the HEROs who are operating on those channels are not listed in the A, B, C or D columns in the table, they're listed just under "Master Operator S" or "Master Operator N".Cool find Dan.....I think Alpha, Bravo, Charlie, Delta dispatches are right on the money...the further enumerated breakdowns shown on that flow chart may not apply to talkgroups per se but I think we are making great progress on the lion's share of HERO comms/labels.
According to Highway Emergency Response Operators - Wikipedia, A, B, C and D correlate to shifts, not areas. "The HERO day is split into four shifts: Alpha (morning), Bravo (afternoon), Charlie (weekend) and Delta (overnight)."
And yet, we know that HERO has 4 channels called Alpha Dispatch, Bravo Dispatch, Charlie Dispatch, and Delta Dispatch (slide 25 at http://www.dot.ga.gov/PartnerSmart/Documents/SSEMC/GDOT Jeff H 2017 Southeastern State Equipment Managers Conference.pdf confirms this), but we also know that the 4 primary talk groups are clearly being divided by area of the city. So this is really confusing.
If we don't figure it out before, the next time I see a HERO unit at a gas station I'll ask him if he can explain.