70 mph yay or nay

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Re: 70 mph yay or nay

Postby PghSkins on Sun Oct 20, 2013 6:16 pm

canaan wrote:Turnpike should be 80


80 should be at least 80.
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Re: 70 mph yay or nay

Postby pensfan1989 on Sun Oct 20, 2013 6:39 pm

There is no reason for that stretch of 376 between the Ohio River and Chippewa to be 55. None at all.
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Re: 70 mph yay or nay

Postby tjand72 on Sun Oct 20, 2013 7:25 pm

pensfan1989 wrote:There is no reason for that stretch of 376 between the Ohio River and Chippewa to be 55. None at all.

It's between Aliquippa and Chippewa, but you're exactly right. No residential homes or anything. No reason.
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Re: 70 mph yay or nay

Postby Factorial on Sun Oct 20, 2013 7:56 pm

offsides wrote:I don't need to get anywhere fast anymore so I really don't care what the limit is, but how many here are old enough to remember that we went to the national 55 mph speed limit to get better gas mileage and therefor supposedly use less fuel. The government determined that the most fuel efficient speed was 55 mph. With today's cars, wonder what the most fuel efficient speed is? I also guess there isn't a gas shortage anymore.


See my post above. The quote is taken from this ode to the Energy Crisis from 1974:

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Re: 70 mph yay or nay

Postby mac5155 on Mon Oct 21, 2013 10:55 am

raising the speed limit would reduce the $$$ the gov't would get on speeding tickets though.
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Re: 70 mph yay or nay

Postby meow on Mon Oct 21, 2013 10:58 am

Reasonable and prudent
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Re: 70 mph yay or nay

Postby BigMcK on Mon Oct 21, 2013 11:13 am

If you reduce the allowable MPH over the limit amount and increase the penalty per MPH, it would be a wash dollar wise. Also, it bumps a speeder closer to a reckless driving ticket if they are over 10 - 15 MPH over, and that's where the real punishment begins.
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Re: 70 mph yay or nay

Postby KennyTheKangaroo on Mon Oct 21, 2013 11:36 am

PghSkins wrote:
canaan wrote:Turnpike should be 80


80 should be at least 80.


how many of stretches of 80, or the turnpike for that matter, can you drive 80?
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Re: 70 mph yay or nay

Postby mac5155 on Mon Oct 21, 2013 11:37 am

The pike from mm 75 to mm 140-ish is all 3 lanes for the most part and should be 80 MPH
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Re: 70 mph yay or nay

Postby shafnutz05 on Mon Oct 21, 2013 11:38 am

There are extremely long stretches on both roads that 80 is a completely safe and reasonable speed. One stretch that comes to mind on the turnpike is from Harrisburg West to Blue Mountain. That road is straight as an arrow.
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Re: 70 mph yay or nay

Postby KennyTheKangaroo on Mon Oct 21, 2013 11:41 am

shafnutz05 wrote:There are extremely long stretches on both roads that 80 is a completely safe and reasonable speed. One stretch that comes to mind on the turnpike is from Harrisburg West to Blue Mountain. That road is straight as an arrow.


Thats pretty much the only spot that 80 seems reasonable. Three lanes, not a ton of traffic. not buying the stretch from irwin to beyond donegal. too many hills, too many curves.
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Re: 70 mph yay or nay

Postby shafnutz05 on Mon Oct 21, 2013 11:51 am

KennyTheKangaroo wrote:
shafnutz05 wrote:There are extremely long stretches on both roads that 80 is a completely safe and reasonable speed. One stretch that comes to mind on the turnpike is from Harrisburg West to Blue Mountain. That road is straight as an arrow.


Thats pretty much the only spot that 80 seems reasonable. Three lanes, not a ton of traffic. not buying the stretch from irwin to beyond donegal. too many hills, too many curves.


I actually agree with you that 80 mph is too high of a speed limit for the majority of the two interstates you mentioned, especially the turnpike. The stretches I mentioned (including east of Reading, I would argue) notwithstanding.
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Re: 70 mph yay or nay

Postby pfim on Mon Oct 21, 2013 12:00 pm

MRandall25 wrote:The "most fuel efficient" speed is probably different for every car. I know the Honda Pilot we have has an ECO light that turns on when you're getting the best fuel economy possible, and the light turning on varies with RPM, not speed.


It is different for every car, though I don't know of many production road cars that get better gas mileage once you get over 60-65. It's usually worse, and depends a lot on the weight of the vehicle and drag.
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Re: 70 mph yay or nay

Postby Tomas on Mon Oct 21, 2013 12:23 pm

I have a question that is somewhat related to the topic of the post:

Out of many cars I have driven in my life, it's my current one (BMW 328 XDrive) that gives me the least precise speed readings. Relatively often, I tend to ride on the most boring flat highways in Iowa or Missouri, so I know that if, for example, I set my cruise at 78 mph (which the car keeps nicely regardless of the slope of the road), the actual speed based on the highway markers is actually 73.5 (tested numerous times).

Now, while I *love* precision in my life (my watch gives me an error of ~7 seconds per year), I am not that crazy to, for example, spend $1,000+ on oversized rims. However, if anybody knows any cheaper, easier fix, I would be very grateful to hear it. Thanks!!
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Re: 70 mph yay or nay

Postby Jim on Mon Oct 21, 2013 12:28 pm

What really sucks is that you car is showing 6% more in your odometer so when you go to trade it in or sell it the mileage will show higher than reality. When you have driven about 80,000 miles your car will actually show about 85,000...
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Re: 70 mph yay or nay

Postby mac5155 on Mon Oct 21, 2013 12:31 pm

Tomas wrote:I have a question that is somewhat related to the topic of the post:

Out of many cars I have driven in my life, it's my current one (BMW 328 XDrive) that gives me the least precise speed readings. Relatively often, I tend to ride on the most boring flat highways in Iowa or Missouri, so I know that if, for example, I set my cruise at 78 mph (which the car keeps nicely regardless of the slope of the road), the actual speed based on the highway markers is actually 73.5 (tested numerous times).

Now, while I *love* precision in my life (my watch gives me an error of ~7 seconds per year), I am not that crazy to, for example, spend $1,000+ on oversized rims. However, if anybody knows any cheaper, easier fix, I would be very grateful to hear it. Thanks!!


I'd take it to your dealer if it's still under warranty. Maybe the calibration is off because of the wheel/tire size.
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Re: 70 mph yay or nay

Postby no name on Mon Oct 21, 2013 2:42 pm

Cars are engineered to drive at these speeds comfortablly now. My father said 40 years ago any car he used to drive at 60mph would shake terrible and scare you half to death and that wasn't the worst part. He said if you stopped suddenly you would be out of control. Now with anitlocking breaks and cruize control the cars are far more stable at 60 or even up to 75 and stopping is safer also.
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Re: 70 mph yay or nay

Postby Rylan on Mon Oct 21, 2013 2:44 pm

If people properly adjusted their speed based on their surroundings, speed limits wouldn't be needed. Cars can handle speed, most people can't.
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Re: 70 mph yay or nay

Postby Jim on Mon Oct 21, 2013 2:57 pm

Rylan wrote:If people properly adjusted their speed based on their surroundings, speed limits wouldn't be needed. Cars can handle speed, most people can't.


The brain's information processing ability is weird. Ever notice how when you get off of the highway from a long drive it seems like you are standing still? 70mph from DC to Pgh, 40mph on the local roads seems sooooooo slow... It feels like you are barely moving.
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Re: 70 mph yay or nay

Postby Shyster on Mon Oct 21, 2013 4:03 pm

Tomas wrote:Out of many cars I have driven in my life, it's my current one (BMW 328 XDrive) that gives me the least precise speed readings. Relatively often, I tend to ride on the most boring flat highways in Iowa or Missouri, so I know that if, for example, I set my cruise at 78 mph (which the car keeps nicely regardless of the slope of the road), the actual speed based on the highway markers is actually 73.5 (tested numerous times).

I recall a few years ago Car and Driver magazine did an article and test on speedometer accuracy. IIRC, they found that just about everyone makes speedos that read low, and the German car manufacturers were the worst offenders in terms of being off. I think they blamed some of the inaccuracy on the manufacturers wanting to use the same parts for multiple models that come with different wheel/tire packages of significantly different diameters.

Ah, the article is online: http://www.caranddriver.com/features/sp ... er-scandal
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Re: 70 mph yay or nay

Postby Shyster on Mon Oct 21, 2013 4:11 pm

I may be remembering incorrectly, but I want to say that I've read that the highways in the Interstate Highway System, which were kicked off in the Eisenhower administration, were originally designed to specifications that in terms of acceptable grades, tightness of corners, etc. were supposed to comfortably accommodate traffic moving at something like 75 mph. And that was 75 mph in big honkin’ 1950s cars with drum brakes, sloppy steering, relatively primitive suspensions, no seat belts, and dashboards made of solid steel. Modern cars are vastly more safe and stable. I see no reason not to raise the limit.
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Re: 70 mph yay or nay

Postby TheHammer24 on Mon Oct 21, 2013 4:22 pm

shafnutz05 wrote:
MRandall25 wrote:They really should up 79 North from Washington to Mount Nebo or whenever it goes up to 65. 55 is too damn slow for the majority of that stretch of road.


Similar to the completely inexplicable 55 stretch on I-70 from Breezewood to the Maryland line

MIND BOGGLINGLY IRRITATING
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