Following Semi's on the Interstate.

RU482

Lifer
Apr 9, 2000
12,689
3
81
is my car messed up, or do I just drive too close? here's what's up. I was driving down the interstate today, behind a semi truck. My car felt like I was driving through a riot, wobbling back and forth. As soon as I blew past the semi, no problem. Weirdest damn thing I've ever felt, driving.

The only thing I could think of was there was a wind out of the north, we were driving west, so there must have been a fair amount of turbulance.
 

Tripleshot

Elite Member
Jan 29, 2000
7,218
1
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You were following too close. If you can not see his mirrors,you are too close to his rear.It is not safe for you or the trucker. He needs to be able to see you. If you arte buffeted by wind in the vacuum of his draft,you were entirely too close.

I have 1,500,000 miles over the road driving an 18 wheeler and being a certified driver instructor. Please heed my advice, for safty sake.
 

XMan

Lifer
Oct 9, 1999
12,513
49
91
Ever watch Nascar? They draft one another; get behind the car in front and let him "break" open the air so they have less wind resistance.

The problem is, a semi is extremely un-aerodynamic. So the wind coming off of it was buffeting your car and causing it to wobble.

Prime drafting spot on a semi is about a car length behind.

EDIT - and Tripleshot is entirely correct.
 

DesignDawg

Diamond Member
Oct 9, 1999
3,919
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Hehehe....

I was telling a friend about this just the other day. When I am on long trips, I always draft behind semi's. For two reasons: One, because they are always the FASTEST PEOPLE ON THE ROAD. Two, because you get MAD GAS MILEAGE when you do that. It's UNREAL. If you find the sweet spot, you can PRACTICALLY TURN YOUR CAR OFF and just leave it in Neutral! Seriously....I once drove about 150 miles, and only used about 2 gallons of gas. AWESOME. :)

Ricky
DesignDawg
 

BiggieN

Banned
Apr 3, 2000
4,230
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gosh...150 on 2 gallons...that beats the new hybrid cars out there...
"my car gets 75 miles to the gallon!"
 

Windogg

Lifer
Oct 9, 1999
10,241
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The side of trucks are also danger spots. If you cannot see the driver in HIS mirror, then he cannot see you either. Never hang/pass around the right side of truck. Also don't forget it can take 2+ football fields for a fully loaded 18 wheeler to stop from 60MPH so don't cut them off or brake suddenly. I always yield right of way to trucks since they can't maneuver like cars. Plus challenge a truck? 80,000lbs+ vs. 3,000..... hmmm.....

Windogg
 

Windogg

Lifer
Oct 9, 1999
10,241
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Design: In Car and Driver they won the Honda Insight Mileage challenge by drafting a gas/electric hybrid Insight behind a modified Ford Excursion. They drove nearly 200 miles about 12 inches apart most of the way. 121.7MPG over 195 miles.

Windogg

EDIT: Link To The Article
 

Tripleshot

Elite Member
Jan 29, 2000
7,218
1
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Xerox Man

I beg to differ. At speeds under 100 MPH,there is no effective drafting by traveling close to any other vehicle and trucks are even worse. The buffiting you will get will cause excessive tire wear and fuel consumtion for compensation. Proven fact.

Please stay far enough back to see the eyes of the truck driver in his mirror.As a proffesional,we then,with our clearer vision of what lies up ahead in the road,can then alert drivers following behind of any impending event that needs attention. And that is what we do. For the most part,truckers are the most proffesional drivers on the road.We have to be to haul 40 tons or more down the road with you and make sure you don't get squished.
 

DesignDawg

Diamond Member
Oct 9, 1999
3,919
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The "If you can't see my mirrors, I can't see you" think is misleading. Though it's a safety guideline, and SHOULD BE FOLLOWED, I offer this argument: If you can't see his mirrors, he can't see YOUR EYES. See what I'm getting at? If you can't see a trucker's mirrors, there is a chance he may still see YOUR CAR. --Just not YOU. ANd it's the car that's the big concern. :)

Seriously, though. I'm just playing the stupid devil's advocate. Of course, I take no responsibility for anyone stupid enough to live life by the "he can probably still see my car" plan.

Ricky
DesignDawg
 

Passions

Diamond Member
Feb 17, 2000
6,855
3
0
put ur car into neutral and follow? i find that hard to believe.

plus i never follow semi's or other big cars, small pebbles and rocks get kicked up alot and cause cracked windshields!!!! :(:(
 

Zucchini

Banned
Dec 10, 1999
4,601
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Hmm, well fast suv drivers are good to follow as they clear a nice path thruogh slow traffic:)
 

yakko

Lifer
Apr 18, 2000
25,455
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Xerox Man,

The best place for drafting a semi is right up on his ass just like in auto racing. I know I would not want to be that close to any vehicle.
 

DesignDawg

Diamond Member
Oct 9, 1999
3,919
0
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<< put ur car into neutral and follow? >>


No. I said:


<< PRACTICALLY TURN YOUR CAR OFF and just leave it in Neutral! >>



Learn to read, dumbass.

Ricky
DesignDawg
 

ratkil

Platinum Member
Jan 12, 2000
2,117
0
76
I used to try drafting semi's but it was just too much trouble, so now I just kind of bump them and hook my bumper to theirs. Works great, I can get thousands of miles to the gallon. Just a real pain though if they are not going to the same state I am..........
 

KBtrade

Senior member
Jan 21, 2000
612
0
0
I drove a truck for over 15 years as a living. If any of you ever get a chance to ride in a truck as a passenger do it, you will get a totally different perspective of the road and how many idiot drivers out there that should not even possess a drivers license.:frown:
 

TimberWolf

Senior member
Oct 11, 1999
516
0
0
DesignDawg:

Tripleshot and Windogg are correct (all &quot;advocacy&quot; aside - ;)) . . .

Eye contact is irrelevent - If you can't see my mirrors from behind, I can't see your car, much less you!

You've also cut your reaction time to any maneuvers I may initiate to less than a second; And you will have absolutely no warning whatsoever about potential road hazards like potholes or tire carcasses in your path. &quot;Craters and Gators&quot; don't affect me all that much, but imagine what 40 lbs of scrap tire tread (kicked up by my tires) would do to your windshield at 60+ MPH . . .

Windogg is also correct in asserting that you shouldn't remain alongside my rig for extended periods.

If you're passing, then execute the pass, allow a few car lengths distance, and return to the travel lane. Remember that I'm attempting to maintain adequate stopping distance with the vehicle(s) ahead of me - Don't just cut in as soon as you clear my front bumper.

Don't pass on the right. I'll be appearing in court in a couple of weeks thanks to a moron that decided to &quot;get around me&quot; on the right side after following me while I legally passed some vehicles. It never occured to him that I might return to the right lane, and he never saw my signal. He panicked, lost control, hit my tractor and ended up in the median; but since he had a passenger for a &quot;witness&quot;, I got the ticket for &quot;Unsafe Passing&quot;.

Although a loaded rig takes a substantial distance to stop, a partially loaded semi can be far more unpredictable. I may be able to slow down much faster than you expect; or the trailer brakes may lock up, causing the trailer to skid towards an adjacent lane. Either way, with a van-type trailer, you can't tell how it's loaded. Tank trailers are also unpredictable, since that liquid load is always moving.

In addition to Tripleshot's valid point about greater visibility from our cab height, we also, by nature of experience, are generally better at assessing traffic patterns and predicting potential behavior or problems well before most car and light truck drivers. Unfortunately, most drivers only &quot;look ahead&quot; as far as the rear of the car in front of them, and depend on their reactions to avoid hazards or respond to various situations as they occur.

While I'm on the soapbox, I might as well add this:

Keep in mind that, when I activate my turn signals, I'm not asking your permission to make a lane change; I'm telling you where I need to go. Since we can't stop quickly at highway speeds, our greatest assets are observation, experience, prediction, and maneuvering.

In the extreme, my signals mean &quot;Get out of the way, I need to be there&quot;; They're not an invitation to a pissing contest over your &quot;rights&quot; to a few square meters of asphalt, or a message to &quot;Speed up and pass so your not stuck behind the truck&quot;.

Don't misunderstand me - I'm not trying to project an attitude here. The important point is that peoples lives, possibly your own, depend on how you respond.
 

Thunderbooty

Banned
Sep 15, 2000
214
0
0


<< Keep in mind that, when I activate my turn signals, I'm not asking your permission to make a lane change; I'm telling you where I need to go. Since we can't stop quickly at highway speeds, our greatest assets are observation, experience, prediction, and maneuvering. >>



To be honest, I never really looked at it that way. I am probably a truckers worse nightmare; a college female in daddies miata tearing up the road :)

I will take that into consideration next time though.
 

Tripleshot

Elite Member
Jan 29, 2000
7,218
1
0
TimberWolf

Very well put. Thank you for your articulate response. Are you still a driver? I got out of the truck a couple years ago. As an owner/ operator,I was getting killed by high fuel prices ,cheap rates,and maintenance on a lousy cummins m11 that couldn't get up to highway speed for at least 2 miles of pedal to the metal. Frustrated,I am now working on my real love,computers and technology. I need to renew my cdl now though. I am curious about how drivers are reacting to the hours of service rules and the electronic reporting scheme.
Any good sites with info. I am a charter member of OOIDA and just a bit biased on the feds moves right now.;)
 

Passions

Diamond Member
Feb 17, 2000
6,855
3
0
what got your panties all bunched up designdawg? that time of month eh.. calm down loser
 

Tominator

Diamond Member
Oct 9, 1999
9,559
1
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I just got back from 1400 miles in 2 days. Yes, in a Semi.

Timber Wolf, I wish the Truck Drivers practiced what you preach!

Tripleshot You ought to hear the disgust going on now about fuel prices! Let them hit a $2 average and a strike is imminent!

When I get out of that truck, I never think about 'Truck Driving' until time to get ready to go. I rarely get on truck.net or www.PumpkinDriver.com Bet you can guess what bunch runs that!;)

If Gore gets elected, I think the new rules might pass. Sad day for Drivers overall. It would take the 'money' out of the business, if you get my drift. If it becomes 'just another job', how will it attract safe drivers? It won't!

A year ago this summer, Clinton declared war on the Transportation Industry.
 

Triumph

Lifer
Oct 9, 1999
15,031
14
81
hey, i'm not protecting automobile drivers here or anything, cause i know none of them can drive either. but i drive 60 miles a day to work and back on I-81 in virginia, which is loaded with trucks. about half of them are anything but considerate drivers. i don't care if you're telling me to get over. you do NOT own the road.

they love to go flying down hills at 85+ mph and sit on your bumper when you're already doing 10+ over, then they pass each other on the hill going up, which of course with their payload they can't make it up going more than 55, and no one can get around them. you can argue that they have to speed up down the hills to get up the next one, well guess what? the speed limit is 65.

i'm not scared of trucks (people who are timid drivers are the worst kind). i am courteous to them when i see they need to move here or there or i'm in their way (i stay very observant of all vehicles around me, front and back) and i don't mind them when traffic isn't heavy. but during rush hour traffic, i think they need to alter their driving habits.
 

DesignDawg

Diamond Member
Oct 9, 1999
3,919
0
0
Timberwolf:

I know, man. It's cool. Everything I have said was a joke. I fully udnerstand.

B.R.- haha. BOOHOO.

Ricky
DesignDawg
 

TimberWolf

Senior member
Oct 11, 1999
516
0
0
Tripleshot:

You betcha - I do a drop &amp; hook shuttle to the north of Richmond area 3 or 4 times a week (which I prefer to doing day deliveries in NYC!). I'm headed out after I finish this . . .

As I understand the new HOS recommendations, they're (the Feds) getting negative comments at every level of the industry - The changes would make the current shortage of drivers more acute; create more traffic congestion in heavily traveled corridors; and dramatically increase costs to Owner/Operator's, shipper's, and manufacturer's without any demonstrable increase in safety.

About the only site I visit with any regularity is Truck.net for the BBS.

Triumph:

Hey, we have lamers in our industry, just like everybody else ;). Most of the drivers I know and work with are pretty considerate.

You made a significant point - Nobody &quot;owns the road&quot;. That's why most states mandate that slower traffic must use the right lane; and have &quot;minimum&quot; speed limits for multi-lane highways. They're for cars, as well as trucks.

My &quot;get out of the way&quot; comment was prefaced as &quot;in the extreme&quot;, i.e. - At 60 MPH, I just spotted an accident happen 1/4 mile ahead in my lane (middle of 3). The right lane is full, but there's room on my left - which you intend to occupy as you are passing me. You can't see the accident yet; I'm loaded and won't be stopping anytime soon . . . Your call.

The biggest problems I see regularly have to do with situational awareness (or, more precisely, the lack thereof) and &quot;failure to yield right-of-way&quot;. I'd love to see a state Governor with the guts to implement a high-profile &quot;failure-to-yield&quot; enforcement campaign. I think it would translate into a dramatic change in driving behavior, and spread to other states. But it wouldn't be popular at first, so it's probably unfeasable, politically.