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 > 75 Speed Limit - How Fast

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Edd505

Elephant Butte, NM

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Posted: 09/02/20 03:35pm Link  |  Quote  |  Print  |  Notify Moderator

Lynnmor wrote:

Anyone that says they get their best mileage at 72 MPH is not in touch with reality. Since aerodynamic drag increases dramatically as speed increases, it is impossible to reverse basic laws of physics. Slow down AND grow up.

Another city dweller that lives in an area your lucky to maintain 55. Go west I know my vehicle & worked numbers for many years an know where my vehicle runs best. Diesels love to work and work best pulling loads, that's why you never see gas long hauls. 72mph the engines loafing at 2000 rpm, right in the power range:
Per Ford:
Horsepower: 450 hp at 2,800 rpm
Torque: 935 lb?ft at 1,600 rpm
Jump in your Prius and drive on.

* This post was edited 09/02/20 04:16pm by an administrator/moderator *


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Huntington WV

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Posted: 09/04/20 05:56am Link  |  Quote  |  Print  |  Notify Moderator

I continue to be amazed at how people are so sensitive to speed and others getting in their way!! If 60 mph in an RV (that's a mile per minute) is not fast enough maybe you should consider another mode of transportation. Driving in other types of vehicles is a different consideration and speeds can increase in a prudent manner. Any type of RV both those you drive or tow should travel somewhat slower or as close as possible to the posted speed. The vast majority of drivers today want to travel 10 to 15 mph over the posted speed.

Mike134

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Posted: 09/04/20 06:02am Link  |  Quote  |  Print  |  Notify Moderator

I like the analogy about speed differences that was posted earlier. If you can't avoid a stalled car in the right hand lane on 4 lane road when driving at 20 mph, maybe it's you that doesn't belong on that road.


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way2roll

Wilmington NC

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Posted: 09/04/20 06:28am Link  |  Quote  |  Print  |  Notify Moderator

Mike134 wrote:

I like the analogy about speed differences that was posted earlier. If you can't avoid a stalled car in the right hand lane on 4 lane road when driving at 20 mph, maybe it's you that doesn't belong on that road.


It's not really that simple. Accidents from people driving too slow are caused by a line of cars coming up behind that car going with the flow of traffic- each one further back in the flow with increasingly limited visibility to slow car. If the first car in the flow approaching the slower vehicle changes lanes quickly to avoid the slower car, there is now a greater risk of the remaining cars hitting the slower one or swerving and hitting someone else. Or slamming on their brakes and creating a chain reaction. It happens all the time. No one in a flow of traffic going 70 expects to come up on one going 50. And it's an unrealistic expectation that everyone needs to watch out for you because you decide it's better to go 20 mph slower than everyone else going the speed limit. You might be within the law but you have decided to be purposely slower than everyone else and invite risk as a result. There's a lot of criticality on here that the road is yours and I can go as fast as I want. Well I find that hypocritical. The approach that "I will go as slow as I want and everyone better watch out for me" is the same thing. The flow of traffic is statistically the safest. Being an outlier and going much faster or much slower than everyone else invites risk. It's how most accidents happen on highways.


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tomman58

Southeast Michigan

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Posted: 09/04/20 06:48am Link  |  Quote  |  Print  |  Notify Moderator

I drive at 68, tire are rated higher but at 70 the mileage falls like a rock. I do see on I75 many trailers at 60 or 62 this is a bad thing because as cars move into the left lane they leave a 60+ zone and go into a 80+ zone. A lot of brake lights and a nasty experience for all.


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Mike134

Elgin, IL

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Posted: 09/04/20 07:18am Link  |  Quote  |  Print  |  Notify Moderator

way2roll wrote:

Mike134 wrote:

I like the analogy about speed differences that was posted earlier. If you can't avoid a stalled car in the right hand lane on 4 lane road when driving at 20 mph, maybe it's you that doesn't belong on that road.


It's not really that simple. Accidents from people driving too slow are caused by a line of cars coming up behind that car going with the flow of traffic- each one further back in the flow with increasingly limited visibility to slow car. If the first car in the flow approaching the slower vehicle changes lanes quickly to avoid the slower car, there is now a greater risk of the remaining cars hitting the slower one or swerving and hitting someone else. Or slamming on their brakes and creating a chain reaction. It happens all the time. No one in a flow of traffic going 70 expects to come up on one going 50. And it's an unrealistic expectation that everyone needs to watch out for you because you decide it's better to go 20 mph slower than everyone else going the speed limit. You might be within the law but you have decided to be purposely slower than everyone else and invite risk as a result. There's a lot of criticality on here that the road is yours and I can go as fast as I want. Well I find that hypocritical. The approach that "I will go as slow as I want and everyone better watch out for me" is the same thing. The flow of traffic is statistically the safest. Being an outlier and going much faster or much slower than everyone else invites risk. It's how most accidents happen on highways.


Thank you you've provided a very good example of what happens when people don't look ahead and anticipate while they drive and the resulting accidents.

ppine

Northern Nevada

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Posted: 09/04/20 07:42am Link  |  Quote  |  Print  |  Notify Moderator

Once you have plenty of power and the right tires for speed, you still have the problem of being able to stop. That is why RVs should be going much over 65-70 even on open roads with plenty of room.

Lynnmor

Red Lion

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Posted: 09/04/20 07:46am Link  |  Quote  |  Print  |  Notify Moderator

tomman58 wrote:

I drive at 68, tire are rated higher but at 70 the mileage falls like a rock. I do see on I75 many trailers at 60 or 62 this is a bad thing because as cars move into the left lane they leave a 60+ zone and go into a 80+ zone. A lot of brake lights and a nasty experience for all.


Sure, only those that drive sensibly and within the speed limits should be inconvenienced.





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Huntington WV

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Posted: 09/04/20 07:47am Link  |  Quote  |  Print  |  Notify Moderator

Problem is too many people won't "flow with traffic." If everyone would just try to stay close to the speed limit......give or take 5 mph there might be less accidents. The irresponsible people trying to run 10 to 15 over the posted speeds make it so hard to change lanes or prepare for your exit ramp.

JRscooby

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Posted: 09/04/20 07:48am Link  |  Quote  |  Print  |  Notify Moderator

way2roll wrote:

Mike134 wrote:

I like the analogy about speed differences that was posted earlier. If you can't avoid a stalled car in the right hand lane on 4 lane road when driving at 20 mph, maybe it's you that doesn't belong on that road.


It's not really that simple. Accidents from people driving too slow are caused by a line of cars coming up behind that car going with the flow of traffic- each one further back in the flow with increasingly limited visibility to slow car. If the first car in the flow approaching the slower vehicle changes lanes quickly to avoid the slower car, there is now a greater risk of the remaining cars hitting the slower one or swerving and hitting someone else. Or slamming on their brakes and creating a chain reaction. It happens all the time. No one in a flow of traffic going 70 expects to come up on one going 50. And it's an unrealistic expectation that everyone needs to watch out for you because you decide it's better to go 20 mph slower than everyone else going the speed limit. You might be within the law but you have decided to be purposely slower than everyone else and invite risk as a result. There's a lot of criticality on here that the road is yours and I can go as fast as I want. Well I find that hypocritical. The approach that "I will go as slow as I want and everyone better watch out for me" is the same thing. The flow of traffic is statistically the safest. Being an outlier and going much faster or much slower than everyone else invites risk. It's how most accidents happen on highways.


And just exactly how is the reactions of other drivers different for a stopped car in 20 MPH traffic? The below average driver will witch for a minute about the obstruction, but most times, no paint is exchanged. But the "My snot is in good shape! I'm a great drive!" can't cope? All want to yell "Get Off My Road!"

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