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Author Topic: Corridor H  (Read 324469 times)

VTGoose

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Re: Corridor H
« Reply #1025 on: February 12, 2018, 09:43:15 AM »

Anyone who drives too fast for pavement conditions deserves to meet a bridge wall up close in personal, IMHO. If I'm driving that road and it's snowy, I'm not doing over 35.

That goes without saying -- but given that "driving" isn't actually a learned skill these days, there are a lot of people who may be scuffing up those walls. The "daily wreck" on I-81 around here is a good example of that, when cars and trucks collide on a regular basis (or go into the ditch or guardrail) because people can't be bothered to pay attention to their main purpose of sitting behind the wheel.

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Beltway

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Re: Corridor H
« Reply #1026 on: February 12, 2018, 10:11:28 AM »

Anyone who drives too fast for pavement conditions deserves to meet a bridge wall up close in personal, IMHO. If I'm driving that road and it's snowy, I'm not doing over 35.
That goes without saying -- but given that "driving" isn't actually a learned skill these days, there are a lot of people who may be scuffing up those walls. The "daily wreck" on I-81 around here is a good example of that, when cars and trucks collide on a regular basis (or go into the ditch or guardrail) because people can't be bothered to pay attention to their main purpose of sitting behind the wheel.

That photo looks like it was taken with a strong telephoto lens of at least 5x.  That greatly exaggerates the amount of curvature.  I would have to see it myself, but those curves may be easily negotiable at 60+ mph.
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seicer

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Re: Corridor H
« Reply #1027 on: February 12, 2018, 10:38:13 AM »

It's with a 200mm telephoto. You can drive it fine at 75 MPH - considering it's on a steep downgrade from the Allegheny Front.
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Roadsguy

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Re: Corridor H
« Reply #1028 on: February 12, 2018, 11:13:00 AM »

Considering that the narrow and twisty 70 mph PA Turnpike can be safely driven at 80 when doing 10 over the limit, I'd say Corridor H would probably be good for at least a 70 mph speed limit if not for the intersections. In fact very few of the northeast/east coast's suburban and rural freeways should be any less than 70.
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Beltway

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Re: Corridor H
« Reply #1029 on: February 12, 2018, 01:16:13 PM »

It's with a 200mm telephoto. You can drive it fine at 75 MPH - considering it's on a steep downgrade from the Allegheny Front.

IOW that would be 4x if 50mm was 1.0 as it is on my camera.  About what I estimated from looking at the photo.
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AsphaltPlanet

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Re: Corridor H
« Reply #1030 on: February 12, 2018, 02:26:12 PM »

^ An equivalent focal length of 50mm isn't 1x.  It depends on the camera lens, but most zoom cameras start at about an equivalent focal length of about 24mm to 28mm.  A 200mm equivalent would therefore be about 8x.
« Last Edit: February 12, 2018, 02:29:52 PM by AsphaltPlanet »
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Beltway

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Re: Corridor H
« Reply #1031 on: February 12, 2018, 03:10:57 PM »

^ An equivalent focal length of 50mm isn't 1x.  It depends on the camera lens, but most zoom cameras start at about an equivalent focal length of about 24mm to 28mm.  A 200mm equivalent would therefore be about 8x.

My comments represent the one SLR that I have.

And the point was that the photo was taken with a strong telephoto lens.
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AsphaltPlanet

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Re: Corridor H
« Reply #1032 on: February 12, 2018, 03:16:14 PM »

^ that's fine, but 50mm on a SLR is not 1x.

50mm (particularly on a crop-sensor SLR, which actually equates to an equivalent of 75mm) is actually a short telephoto lens, and is not as you described 1x.

seicer

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Re: Corridor H
« Reply #1033 on: February 12, 2018, 03:49:20 PM »

If you want to get technical, unless you have a full-frame 35 =mm sensor size in your SLR or camera, then you have to work with a conversion size.

For instance, a Nikon 200mm FX tele on a Nikon D810 is a 200mm FX tele. On a Nikon D5500, with a smaller sensor, it is a 320mm FX tele (1.6x conversion).

Then, there are those smaller sensors with specially made lenses for them. A 200mm DX tele on a Nikon D5500 is a 200mm DX tele. On a Nikon D810, it's a 200mm DX tele. The camera then essentially blacks out 38% of the sensor.

Without knowing the sensor size, it's hard to say that it is an 8x conversion or a 4x conversion.
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AsphaltPlanet

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Re: Corridor H
« Reply #1034 on: February 12, 2018, 03:52:29 PM »

^ Not really.

Without knowing the sensor size it is hard to tell if it's an 8x zoom vs a 12x zoom, but not if it's a 4x zoom.  The baseline for what a point an shoot camera considers 1x is pretty much always in the 24-28mm range.

And Nikon (and Sony) use a 1.5 crop factor, not a 1.6.

*edit* reading the above post again, I see you're point, you could use a crop-sensor lens on a full-frame sensor camera.  But... that's not something I would assume many people would do, (why spend extra money on a full-frame camera only to use it with a crop sensor lens, and forgoing the benefit of the full-frame sesnsor?).
« Last Edit: February 12, 2018, 04:02:31 PM by AsphaltPlanet »
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seicer

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Re: Corridor H
« Reply #1035 on: February 12, 2018, 03:59:57 PM »

Sorry, had Canon on my mind. As far as baselines go, it can vary with manufacturer and camera model, which is why it's nothing more than a marketing gimmick.

"Look at this camera from SoNiCanon! It has 20x zoom!" (When in reality, only a quarter of that is optical and the rest is compromised digital zoom.)

I think that at this point we are going well off topic, but let's just agree that it's a tele photo and pretty safe to drive at all high speeds. My highest speed on that segment - down a steep grade and over the bridge, is over 100 MPH. That was just before the segment opened to traffic.
« Last Edit: February 12, 2018, 04:02:30 PM by seicer »
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cpzilliacus

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Re: Corridor H
« Reply #1036 on: February 13, 2018, 09:50:35 AM »

I think that at this point we are going well off topic, but let's just agree that it's a tele photo and pretty safe to drive at all high speeds. My highest speed on that segment - down a steep grade and over the bridge, is over 100 MPH. That was just before the segment opened to traffic.

I have seen the WVSP out there enforcing the posted 65 MPH limit, and also Grant County deputies presumably doing the same thing, in particular on the Allegheny Front grade.
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lepidopteran

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Re: Corridor H
« Reply #1037 on: October 11, 2018, 07:38:16 PM »

Relocation of power lines to make way for the Kerens to Parsons section of Corridor H.

https://flic.kr/s/aHskKo8iAo
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cpzilliacus

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Re: Corridor H
« Reply #1038 on: October 11, 2018, 10:06:52 PM »

Relocation of power lines to make way for the Kerens to Parsons section of Corridor H.

https://flic.kr/s/aHskKo8iAo

I was out that way last summer, and the relocation of that transmission line (looks like it might be one 230kVA circuit) was well under way.
« Last Edit: October 12, 2018, 02:24:21 PM by cpzilliacus »
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1995hoo

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Re: Corridor H
« Reply #1039 on: October 12, 2018, 09:00:09 AM »

I think that at this point we are going well off topic, but let's just agree that it's a tele photo and pretty safe to drive at all high speeds. My highest speed on that segment - down a steep grade and over the bridge, is over 100 MPH. That was just before the segment opened to traffic.

I have seen the WVSP out there enforcing the posted 65 MPH limit, and also Grant County deputies presumably doing the same thing, in particular on the Allegheny Front grade.

There are certainly a few parts of Corridor H where one can go really fast, but for the most part I’ve found much over 70 mph simply felt too fast in several places (surely this might vary in different vehicles, of course). I haven’t seen much enforcement at all, though if they were out there it’d be easy to get nabbed due to the lack of traffic.
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Bitmapped

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Re: Corridor H
« Reply #1040 on: October 16, 2018, 12:28:36 PM »

WVDEP has stopped construction on Corridor H in Randolph and Tucker Counties due to repeated violations of water quality permits by Kokosing Construction: https://www.wvgazettemail.com/news/wv-dep-orders-stop-to-construction-on-corridor-h/article_06838d14-61c7-5ae5-93e1-9bdf3187cd04.html
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cpzilliacus

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Re: Corridor H
« Reply #1041 on: October 16, 2018, 02:08:01 PM »

WVDEP has stopped construction on Corridor H in Randolph and Tucker Counties due to repeated violations of water quality permits by Kokosing Construction: https://www.wvgazettemail.com/news/wv-dep-orders-stop-to-construction-on-corridor-h/article_06838d14-61c7-5ae5-93e1-9bdf3187cd04.html

I certainly believe that the rain events  that have  hit the  area in September and thus far in October have been pretty big and intense.  But still, contractors have  a legal requirement to comply with Section 404 (of the Clean Water Act) permits having to do with water quality and that includes  stormwater runoff too.
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Bitmapped

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Re: Corridor H
« Reply #1042 on: October 16, 2018, 02:46:29 PM »

WVDEP has stopped construction on Corridor H in Randolph and Tucker Counties due to repeated violations of water quality permits by Kokosing Construction: https://www.wvgazettemail.com/news/wv-dep-orders-stop-to-construction-on-corridor-h/article_06838d14-61c7-5ae5-93e1-9bdf3187cd04.html

I certainly believe that the rain events  that have  hit the  area in September and thus far in October have been pretty big and intense.  But still, contractors have  a legal requirement to comply with Section 404 (of the Clean Water Act) permits having to do with water quality and that includes  stormwater runoff too.

It has been unusually wet, but the violations stretch back until December 2017 according to the article. WVDEP isn't known for strict enforcement (it's frequently called the Department of Employer Protection) so if they took action, I have to think the issues were pretty egregious.
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