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Author Topic: Charlotte  (Read 48583 times)

sprjus4

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Re: Charlotte
« Reply #250 on: September 06, 2021, 04:28:53 AM »

^ They effectively pushed the merge point further east by reconfiguring that lane drop, pushing any queue caused by the lane drop into the queue from the I-485 interchange. Seems like a poor decision on their part.
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fillup420

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Re: Charlotte
« Reply #251 on: September 06, 2021, 09:39:14 AM »

^ They effectively pushed the merge point further east by reconfiguring that lane drop, pushing any queue caused by the lane drop into the queue from the I-485 interchange. Seems like a poor decision on their part.

I will say though, the new setup is less dangerous. When the left lane drop was in place, many aggressive drivers would cut in too late and cause a crash. The left shoulder there is narrow so no room for error. I can recall many a crash there causing the entire southbound side to be blocked.
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architect77

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Re: Charlotte
« Reply #252 on: September 11, 2021, 09:08:07 AM »

Ok so I-85 is culprit regarding the interchange congestion.

I looked at a map and it looks like they didn't do much for the transitions in directions that had other highways not too far away going in the same direction. zIn other words, locals would the another road first to uptown rather than use the outerbelt and I-85. I'm looking set the NW quadrant of Meck when I hypothesize this.
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Mileage Mike

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Re: Charlotte
« Reply #253 on: September 11, 2021, 10:11:32 AM »

Ok so I-85 is culprit regarding the interchange congestion.

I looked at a map and it looks like they didn't do much for the transitions in directions that had other highways not too far away going in the same direction. zIn other words, locals would the another road first to uptown rather than use the outerbelt and I-85. I'm looking set the NW quadrant of Meck when I hypothesize this.

The core issue is the loss of the 4th lane going into Gaston County. Until I-85 is widened through there you will have a chokepoint due to the loss of capacity. It's similar to how I-85 north of Charlotte used to always have a chokepoint wherever the freeway dropped from 4 lanes. Around rush hour the problem is that you have lots of traffic coming off the SW quadrant of 485 (via Ballantyne) and the traffic coming from Uptown via 85 converging together shortly before the loss of the 4th lane and then being squeezed down to 3 lanes into Gaston.  There really isn't a decent alternative as waiting in traffic on 85 is still usually faster than going down Wilkinson through all the stoplights and those are the only Catawba River crossings in the area.
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Third Strike

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Re: Charlotte
« Reply #254 on: September 11, 2021, 10:20:44 AM »

When is the next phase of construction on Independence Blvd supposed to start? The project page on NCDOTís website says that ROW acquisition should have already started and that construction should start next year. But Iím pretty sure property acquisition hasnít started yet:

https://www.ncdot.gov/projects/us-74-express-lanes/Pages/default.aspx

Ok so I-85 is culprit regarding the interchange congestion.

I looked at a map and it looks like they didn't do much for the transitions in directions that had other highways not too far away going in the same direction. zIn other words, locals would the another road first to uptown rather than use the outerbelt and I-85. I'm looking set the NW quadrant of Meck when I hypothesize this.

The core issue is the loss of the 4th lane going into Gaston County. Until I-85 is widened through there you will have a chokepoint due to the loss of capacity. It's similar to how I-85 north of Charlotte used to always have a chokepoint wherever the freeway dropped from 4 lanes. Around rush hour the problem is that you have lots of traffic coming off the SW quadrant of 485 (via Ballantyne) and the traffic coming from Uptown via 85 converging together shortly before the loss of the 4th lane and then being squeezed down to 3 lanes into Gaston.  There really isn't a decent alternative as waiting in traffic on 85 is still usually faster than going down Wilkinson through all the stoplights and those are the only Catawba River crossings in the area.

Gaston County is pushing for another crossing across the Catawba. I believe itís a remnant of what the Gaston Parkway was going to be. However, I wouldnít expect this project to happen for at least another decade.

https://catawbacrossings.com/wp-content/uploads/2020/09/Corridor-Map-scaled.jpg
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cowboy_wilhelm

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Re: Charlotte
« Reply #255 on: September 11, 2021, 10:44:12 AM »

Even with I-85 widened to four lanes to the south/west, there are still over 30,000 vehicles merging into a one-lane ramp from I-485 to I-85 southbound on an average day. The congestion from the I-85 bottleneck doesn't help, but this problem won't go away until the ramps from I-485 are extended. What's needed are three lanes from I-485. Lane 7 ends at the Sam Wilson Rd overpass, lane 6 ends before the Moores Chapel Rd overpass, lane 5 exits at Exit 27, and then four lanes to US 321.

I would also vote for relocating the southbound weigh station as that is forcing all trucks into the right lane and interfering with the flow of things as they have to merge left twice in half a mile after leaving the station.


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