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Author Topic: Tennessee  (Read 258947 times)

sprjus4

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Re: Tennessee
« Reply #650 on: May 01, 2023, 07:14:43 PM »

Where might the toll lanes be constructed first? I would imagine either in Memphis or Nashville, since they may not be needed in Knoxville or Chattanooga.
I would imagine conversion of the existing HOV lanes in NashvilleÖ however this bill does not seem to support HO/T lanes, which allow HOV-2+ to drive for free. That would be needed to make this more fair, otherwise youíre taking away an existing free HOV lane from carpoolers, and likely increasing congestion further when they opt to not pay.
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froggie

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Re: Tennessee
« Reply #651 on: May 02, 2023, 09:15:11 AM »

Assuming tolling of the Lexus lanes is backed up by cameras, I wonder if the state legislature will remember they have this law on the books:  https://casetext.com/statute/tennessee-code/title-55-motor-and-other-vehicles/chapter-8-operation-of-vehicles-rules-of-the-road/part-1-operation-of-vehicles-rules-of-the-road/section-55-8-198-citations-based-on-unmanned-traffic-enforcement-cameras

(Currently, there's no practical consequence for ignoring tickets issued because of red light or speed cameras in TN.)

Reading through the bill text, it looks like the Legislature modified 55-8-198 so that vehicle owners who rack up 3 or more violations within 12 months will have their vehicle registration suspended.

Not much of a "practical consequence", but it's there...
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hbelkins

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Re: Tennessee
« Reply #652 on: May 02, 2023, 01:11:11 PM »

Assuming tolling of the Lexus lanes is backed up by cameras, I wonder if the state legislature will remember they have this law on the books:  https://casetext.com/statute/tennessee-code/title-55-motor-and-other-vehicles/chapter-8-operation-of-vehicles-rules-of-the-road/part-1-operation-of-vehicles-rules-of-the-road/section-55-8-198-citations-based-on-unmanned-traffic-enforcement-cameras

(Currently, there's no practical consequence for ignoring tickets issued because of red light or speed cameras in TN.)

Reading through the bill text, it looks like the Legislature modified 55-8-198 so that vehicle owners who rack up 3 or more violations within 12 months will have their vehicle registration suspended.

Not much of a "practical consequence", but it's there...

You mean I can ignore those scary red-light camera messages next time I'm on Stone Drive (US 11W) in Kingsport? Yee haw!
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civilengineeringnerd

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Re: Tennessee
« Reply #653 on: July 05, 2023, 02:31:58 PM »

Where might the toll lanes be constructed first? I would imagine either in Memphis or Nashville, since they may not be needed in Knoxville or Chattanooga.
I would imagine conversion of the existing HOV lanes in NashvilleÖ however this bill does not seem to support HO/T lanes, which allow HOV-2+ to drive for free. That would be needed to make this more fair, otherwise youíre taking away an existing free HOV lane from carpoolers, and likely increasing congestion further when they opt to not pay.
personally i welcome the idea of toll lanes, they need express toll lanes along the 3 major interstates in tennessee, I-40, I-65 and I-24, to give people a option thats less full of trucks. especially I-40 along the entire length, given its a massive truck route. tennessee has always been behind the times because for whatever reason tennessee has hated leasing out infrastructure to the private sector.
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sprjus4

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Re: Tennessee
« Reply #654 on: July 05, 2023, 02:36:35 PM »

A single express toll lanes becomes a problem when you have one car thatís going 65 mph the whole time, and a whole queue stacks behind for miles without any passing allowance.
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civilengineeringnerd

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Re: Tennessee
« Reply #655 on: July 05, 2023, 03:24:22 PM »

A single express toll lanes becomes a problem when you have one car thatís going 65 mph the whole time, and a whole queue stacks behind for miles without any passing allowance.
true. its why dual express toll lanes should be a thing.
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froggie

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Re: Tennessee
« Reply #656 on: July 05, 2023, 09:21:53 PM »

A single express toll lanes becomes a problem when you have one car thatís going 65 mph the whole time, and a whole queue stacks behind for miles without any passing allowance.

Most normal people using said express toll lane would be doing so because traffic in the regular lanes is going a good bit less than 65.
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sprjus4

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Re: Tennessee
« Reply #657 on: July 05, 2023, 11:53:28 PM »

A single express toll lanes becomes a problem when you have one car thatís going 65 mph the whole time, and a whole queue stacks behind for miles without any passing allowance.

Most normal people using said express toll lane would be doing so because traffic in the regular lanes is going a good bit less than 65.
I was referring to if they implemented rural express lanes for hundreds of miles on I-40, like he suggested. Not in congested urban areas.
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civilengineeringnerd

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Re: Tennessee
« Reply #658 on: July 07, 2023, 09:19:45 PM »

A single express toll lanes becomes a problem when you have one car thatís going 65 mph the whole time, and a whole queue stacks behind for miles without any passing allowance.

Most normal people using said express toll lane would be doing so because traffic in the regular lanes is going a good bit less than 65.
I was referring to if they implemented rural express lanes for hundreds of miles on I-40, like he suggested. Not in congested urban areas.
which is understandable. I-40 is a major east-west truck corridor, so i imagine express toll lanes would be used by travelers, RVs and commuters for the most part, truckers will probably use the general purpose lanes.
plus it could split up traffic indirectly.
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The Ghostbuster

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Re: Tennessee
« Reply #659 on: July 07, 2023, 10:36:19 PM »

Iím sure there will eventually be express toll lanes in Nashville, but what about Memphis? Could express toll lanes be built there (I doubt express toll lanes will ever be needed anywhere else in the state)?
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sprjus4

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Re: Tennessee
« Reply #660 on: July 07, 2023, 11:18:54 PM »

A single express toll lanes becomes a problem when you have one car thatís going 65 mph the whole time, and a whole queue stacks behind for miles without any passing allowance.

Most normal people using said express toll lane would be doing so because traffic in the regular lanes is going a good bit less than 65.
I was referring to if they implemented rural express lanes for hundreds of miles on I-40, like he suggested. Not in congested urban areas.
which is understandable. I-40 is a major east-west truck corridor, so i imagine express toll lanes would be used by travelers, RVs and commuters for the most part, truckers will probably use the general purpose lanes.
plus it could split up traffic indirectly.
RVsÖ yeah I can easily see an RV fluctuating between 55 and 75 mph in a single lane toll lane with traffic aggressively stacking up behind with zero passing zones. Let alone a driver not paying attention to speed. Terrible idea.

I already take some issue with urban single toll lanes that arenít at least two lanes, I could not see it viable in rural areas with higher speeds of traffic.
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civilengineeringnerd

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Re: Tennessee
« Reply #661 on: July 08, 2023, 04:56:28 AM »

A single express toll lanes becomes a problem when you have one car thatís going 65 mph the whole time, and a whole queue stacks behind for miles without any passing allowance.

Most normal people using said express toll lane would be doing so because traffic in the regular lanes is going a good bit less than 65.
I was referring to if they implemented rural express lanes for hundreds of miles on I-40, like he suggested. Not in congested urban areas.
which is understandable. I-40 is a major east-west truck corridor, so i imagine express toll lanes would be used by travelers, RVs and commuters for the most part, truckers will probably use the general purpose lanes.
plus it could split up traffic indirectly.
RVsÖ yeah I can easily see an RV fluctuating between 55 and 75 mph in a single lane toll lane with traffic aggressively stacking up behind with zero passing zones. Let alone a driver not paying attention to speed. Terrible idea.

I already take some issue with urban single toll lanes that arenít at least two lanes, I could not see it viable in rural areas with higher speeds of traffic.
all the reason why dual toll lanes might be better. plus theres always gonna be a grandma driving in a old lincoln town car doing 55 on the interstate.
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sprjus4

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Re: Tennessee
« Reply #662 on: July 08, 2023, 10:35:29 AM »

^ Traditional 6 lane widening would address many of the issues along major freight corridors like I-40. Thereís not enough traffic volume overall to warrant 8 lanes, the highway almost operates adequately with just 4 lanes, the concentration of slow moving trucks is the issue a third lane would alleviate.
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lordsutch

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Re: Tennessee
« Reply #663 on: July 18, 2023, 01:06:18 PM »

Iím sure there will eventually be express toll lanes in Nashville, but what about Memphis? Could express toll lanes be built there (I doubt express toll lanes will ever be needed anywhere else in the state)?

The congestion studies appendix for Memphis showed the HOV lanes on I-40 being replaced with two reversible managed express lanes.
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The Ghostbuster

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Re: Tennessee
« Reply #664 on: July 18, 2023, 03:41:25 PM »

I see they are planning to add a bunch of ramp meters to on-ramps within the Memphis area. Are ramps meters common in Tennessee?
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wriddle082

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Re: Tennessee
« Reply #665 on: July 19, 2023, 06:32:30 AM »

I see they are planning to add a bunch of ramp meters to on-ramps within the Memphis area. Are ramps meters common in Tennessee?

AFAIK these will probably be the first.  But they just recently finished the I-24 Smart Corridor between Nashville and Murfreesboro, and it might have ramp meters now.  I havenít been on I-24 in the Nashville area since last fall.
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Tomahawkin

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Re: Tennessee
« Reply #666 on: July 19, 2023, 02:11:05 PM »

IMO, ramp meters do little to alleviate traffic issues especially when the interchange is antiquated. The Atlanta area is full of said interchanges. I have the same opinion in the usage of DDI's. They don't do much to help interchanges that have excessive traffic volumes

The Nashville area will soon find that out. It seems that there are several antiquated interchanges inside of the 840 corridor?
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codyg1985

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Re: Tennessee
« Reply #667 on: July 19, 2023, 02:25:27 PM »

I see they are planning to add a bunch of ramp meters to on-ramps within the Memphis area. Are ramps meters common in Tennessee?

AFAIK these will probably be the first.  But they just recently finished the I-24 Smart Corridor between Nashville and Murfreesboro, and it might have ramp meters now.  I havenít been on I-24 in the Nashville area since last fall.


No ramp meters along I-24 yet. The second phase of the Smart Corridor project installed the lane control and variable speed limit signs.
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Cody Goodman
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Georgia Guardrail

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Re: Tennessee
« Reply #668 on: August 02, 2023, 04:17:56 PM »

Does anyone know if there are any plans in the works to reconstruct the Western I-75/I-40 Interchange Split?  The curves on the flyovers are awfully sharp IMO.
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codyg1985

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Re: Tennessee
« Reply #669 on: August 02, 2023, 04:23:38 PM »

Does anyone know if there are any plans in the works to reconstruct the Western I-75/I-40 Interchange Split?  The curves on the flyovers are awfully sharp IMO.

Not that I am aware, but IMO they should extend the fourth lane of the I-40/75 concurrency from TN 131 west to the western split. They may also want to consider braided ramps between the Watt Road interchange and the I-40/75 split since lots of trucks head for the truck stops off of that interchange and there isn't much weaving room (3/4 of a mile) between the interchanges.
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Cody Goodman
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Re: Tennessee
« Reply #670 on: August 03, 2023, 11:53:07 AM »

The only modification I think should be made is widening the Interstate 40 West/Interstate 75 North/Interstate 640 East ramp from one lane to two, if such an expansion is warranted.
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wriddle082

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Re: Tennessee
« Reply #671 on: August 03, 2023, 03:33:00 PM »

Does anyone know if there are any plans in the works to reconstruct the Western I-75/I-40 Interchange Split?  The curves on the flyovers are awfully sharp IMO.

Not that I am aware, but IMO they should extend the fourth lane of the I-40/75 concurrency from TN 131 west to the western split. They may also want to consider braided ramps between the Watt Road interchange and the I-40/75 split since lots of trucks head for the truck stops off of that interchange and there isn't much weaving room (3/4 of a mile) between the interchanges.

Iím thinking the fourth lane expansion may be on the books, as well as a six lane widening of I-75 down to at least US 321, if not to TN 72.  And yes, braided ramps for the Watt Rd exit are definitely needed, as well as a rebuild of the Watt Rd overpass.  Or as an alternative, they could widen the median west of Watt Rd and build a set of median on and off ramps to serve traffic coming from 40 east and going to 75 south, which would eliminate the need for the lane changes.  Sure, left exits and entrances should be discouraged, but there is enough room here to make them longer than usual to encourage slowing down or speeding up.
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bwana39

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Re: Tennessee
« Reply #672 on: August 05, 2023, 04:25:56 PM »

IMO, ramp meters do little to alleviate traffic issues especially when the interchange is antiquated. The Atlanta area is full of said interchanges. I have the same opinion in the usage of DDI's. They don't do much to help interchanges that have excessive traffic volumes

The Nashville area will soon find that out. It seems that there are several antiquated interchanges inside of the 840 corridor?

Texas took all of their ramp meters out decades ago. All they did was cause rear end collisions.
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Plutonic Panda

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Re: Tennessee
« Reply #673 on: August 05, 2023, 06:38:45 PM »

I think thereís a Goldilocks zone so to speak where ramp meters help but it isnít often. It seems like when congestion gets too bad in California they just get turned off because they donít do any good. When traffic is completely free flowing thereís no need for them either.
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codyg1985

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Re: Tennessee
« Reply #674 on: September 12, 2023, 03:04:46 PM »

TDOT has a project on its October letting to reconfigure the I-75 interchange at Hamilton Place Mall in Chattanooga.

More info about this project can be found here.
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Cody Goodman
Huntsville, AL, United States

 


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