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Regional Boards => Southeast => Topic started by: jwolfer on August 23, 2011, 01:28:10 PM

Title: Why is the Atlanta Beltway numbered 285?
Post by: jwolfer on August 23, 2011, 01:28:10 PM
I was wondering why is the Atlanta Beltway or Perimeter numbered 285 and not 275.  It seems that I-75 is more of a through/transcontinental route in Atlanta than I-85.  I have been thinking that it should be a x75.  Any input or secret knowledge out there?
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: RoadWarrior56 on August 23, 2011, 07:49:39 PM
You would probably have to consult AASHO or the BPR from about 1957 to get the actual answer.

My suspicion is that I-85 and I-285 have a 2+mile common section in the SW section of town near the airport, which would make a good place to terminate I-285, I suspect that could had contributed.

There is no common section with I-75.  Plus I-285 is approximately evenly bisected between both I-85 interchanges.  The two "sides" of I-285 between the I-75 interchanges are not even as far as distance is concerned.  The eastern arc is much longer than the western arc.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: InterstateNG on August 23, 2011, 09:51:59 PM
There are four other 275's out there, including the full beltway around Cincinnati.  Perhaps they just wanted something to differentiate.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: Brandon on August 23, 2011, 10:07:47 PM
If they wanted different, I-420 would've worked well.  A freeway you can drive and smoke.  :-D
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: jwolfer on August 24, 2011, 10:53:11 AM
Quote from: Brandon on August 23, 2011, 10:07:47 PM
If they wanted different, I-420 would've worked well.  A freeway you can drive and smoke.  :-D

Imagine the replacement costs for the signs on I-420.  Every college kid would want one for the dorm wall. I know in college we wantd a zero drug tolerance sign
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: jwolfer on August 24, 2011, 10:53:52 AM
Quote from: RoadWarrior56 on August 23, 2011, 07:49:39 PM
You would probably have to consult AASHO or the BPR from about 1957 to get the actual answer.

My suspicion is that I-85 and I-285 have a 2+mile common section in the SW section of town near the airport, which would make a good place to terminate I-285, I suspect that could had contributed.

There is no common section with I-75.  Plus I-285 is approximately evenly bisected between both I-85 interchanges.  The two "sides" of I-285 between the I-75 interchanges are not even as far as distance is concerned.  The eastern arc is much longer than the western arc.

That would make sense since it was routed w I-85
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: 1995hoo on August 24, 2011, 11:07:41 AM
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Post edited: Sorry about the blank post. The image I had embedded evidently wouldn't load, so I've found a different copy.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: OCGuy81 on October 20, 2011, 10:21:37 AM
QuoteImagine the replacement costs for the signs on I-420.  Every college kid would want one for the dorm wall. I know in college we wantd a zero drug tolerance sign

Yet they have, and are proceeding with plans for I-69.  I imagine a LOT of those are taken each year as well! :-D
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: roadman65 on October 25, 2011, 09:39:00 PM
Actually using I-285 is much better than using I-287 in New Jersey considering its parent never enters this state.  Also, both ends of I-287 interchange with I-95.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: jwolfer on October 26, 2011, 08:32:28 AM
Quote from: roadman65 on October 25, 2011, 09:39:00 PM
Actually using I-285 is much better than using I-287 in New Jersey considering its parent never enters this state.  Also, both ends of I-287 interchange with I-95.

Agreed at least 285 loops around 85 on both ends

All the even x95s were planned in NJ. The only ones actually built were 295 and 495 although 495 is no longer an interstate.

I say bring I-87 in NJ using the Garden State Parkway. And make the current I-87 into NYC I-187  There would have to be some upgrades to the road and trucks would have to be allowed among other things.  I grew up in Ocean County and I always wanted a 2di all we had in the county I-195.  I am straying into fictional highway territory here.  I will stop.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: Alps on October 26, 2011, 08:24:52 PM
Quote from: jwolfer on October 26, 2011, 08:32:28 AM
Quote from: roadman65 on October 25, 2011, 09:39:00 PM
Actually using I-285 is much better than using I-287 in New Jersey considering its parent never enters this state.  Also, both ends of I-287 interchange with I-95.

Agreed at least 285 loops around 85 on both ends

All the even x95s were planned in NJ. The only ones actually built were 295 and 495 although 495 is no longer an interstate.
As far as I know 695 was not planned for many years after the I-system was incorporated, once I-95 started moving about near New Brunswick.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: roadman65 on October 26, 2011, 09:46:06 PM
Quote from: jwolfer on October 26, 2011, 08:32:28 AM
Quote from: roadman65 on October 25, 2011, 09:39:00 PM
Actually using I-285 is much better than using I-287 in New Jersey considering its parent never enters this state.  Also, both ends of I-287 interchange with I-95.

Agreed at least 285 loops around 85 on both ends

All the even x95s were planned in NJ. The only ones actually built were 295 and 495 although 495 is no longer an interstate.

I say bring I-87 in NJ using the Garden State Parkway. And make the current I-87 into NYC I-187  There would have to be some upgrades to the road and trucks would have to be allowed among other things.  I grew up in Ocean County and I always wanted a 2di all we had in the county I-195.  I am straying into fictional highway territory here.  I will stop.

Interesting note.  I-287 does junction more with I-95 than its own parent.
Having I-87 on the GSP would work considering that a lot of French Canadian Tourists do vacation in Cape May.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: froggie on October 27, 2011, 06:37:10 AM
QuoteInteresting note.  I-287 does junction more with I-95 than its own parent.

However, I-287 has a noticeable duplex with its parent, so one could argue there are multiple junctions with it (for each interchange along the way).
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: jwolfer on October 27, 2011, 02:10:10 PM
Quote from: froggie on October 27, 2011, 06:37:10 AM
QuoteInteresting note.  I-287 does junction more with I-95 than its own parent.

However, I-287 has a noticeable duplex with its parent, so one could argue there are multiple junctions with it (for each interchange along the way).


True.  I was thinking about NJ only
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: brownpelican on October 27, 2011, 05:17:25 PM
Quote from: OCGuy81 on October 20, 2011, 10:21:37 AM
QuoteImagine the replacement costs for the signs on I-420.  Every college kid would want one for the dorm wall. I know in college we wantd a zero drug tolerance sign

Yet they have, and are proceeding with plans for I-69.  I imagine a LOT of those are taken each year as well! :-D

For real!!!  :) :)
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: 1995hoo on October 27, 2011, 05:38:31 PM
Quote from: brownpelican on October 27, 2011, 05:17:25 PM
Quote from: OCGuy81 on October 20, 2011, 10:21:37 AM
QuoteImagine the replacement costs for the signs on I-420.  Every college kid would want one for the dorm wall. I know in college we wantd a zero drug tolerance sign

Yet they have, and are proceeding with plans for I-69.  I imagine a LOT of those are taken each year as well! :-D

For real!!!  :) :)

Someone at my brother's fraternity stole a "No Dumping" sign and put it on the bathroom door.  :clap:
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: roadman65 on October 27, 2011, 07:30:40 PM
Quote from: jwolfer on October 27, 2011, 02:10:10 PM
Quote from: froggie on October 27, 2011, 06:37:10 AM
QuoteInteresting note.  I-287 does junction more with I-95 than its own parent.

However, I-287 has a noticeable duplex with its parent, so one could argue there are multiple junctions with it (for each interchange along the way).


True.  I was thinking about NJ only


One way of looking at it.
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: jwolfer on October 27, 2011, 08:09:36 PM
Quote from: 1995hoo on October 27, 2011, 05:38:31 PM
Quote from: brownpelican on October 27, 2011, 05:17:25 PM
Quote from: OCGuy81 on October 20, 2011, 10:21:37 AM
QuoteImagine the replacement costs for the signs on I-420.  Every college kid would want one for the dorm wall. I know in college we wantd a zero drug tolerance sign

Yet they have, and are proceeding with plans for I-69.  I imagine a LOT of those are taken each year as well! :-D

For real!!!  :) :)

Someone at my brother's fraternity stole a "No Dumping" sign and put it on the bathroom door.  :clap:

we had one in college in out apartment.  I think i still have it in my shed. my wife wont let me put in the bathroom
Title: Re: Why is the Atlanta Beltway numbered 285?
Post by: Revive 755 on October 27, 2011, 08:16:11 PM
Quote from: Brandon on August 23, 2011, 10:07:47 PM
If they wanted different, I-420 would've worked well.  A freeway you can drive and smoke.  :-D

I'm not sure the order in which they were proposed, but there was an I-420 proposed in the GA 166 corridor.  See http://www.kurumi.com/roads/3di/ix20.html#420ga (http://www.kurumi.com/roads/3di/ix20.html#420ga)