Go Back   EcoModder Forum > EcoModding > Hypermiling / EcoDriver's Ed
Register Now
 Register Now

Reply  Post New Thread
Submit Tools LinkBack Thread Tools
Old 01-25-2010, 02:06 PM   #11 (permalink)
EcoModding Lurker
Mifunego's Avatar
Join Date: Nov 2009
Location: The People's Republic of Chicago
Posts: 69

The Taco - '99 Toyota Tacoma Prerunner
90 day: 19.29 mpg (US)
Thanks: 5
Thanked 13 Times in 9 Posts
Originally Posted by Piwoslaw View Post
This doesn't always work, as there are jerks who keep aggresively accelerating and braking, instead of driving smoothly, even though they have no chance of passing.

Maybe ecodrivers should have flashing lights and a sign in the back saying:

Traffic wave cancellation lead car.
Follow at safe distance. Do not pass.
Dziekuje, Piwo! I got a good laugh out of that one.

Unfortunately, I don't think that would work in the Chicago rush hour traffic (or any hour, for that matter.) I've tried that style of driving myself, and I've noticed that the most cars subscribe to the "nature abhors a vacuum" (traffic jams abhor more than one car length?) concept. If there is an opening in any lane, it will immediately be filled with another car.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

Old 01-26-2010, 11:46 AM   #12 (permalink)
EcoModding Wanabe
Join Date: Jan 2009
Location: Wake Forest, NC
Posts: 10

Red Rocket - '08 Toyota Yaris
Thanks: 0
Thanked 1 Time in 1 Post
I noticed this when I started hypermiling. Usually, when I was a left laner, I was the one flipping back and forth trying to get another car ahead and going gas/brake, gas/brake.

I noticed another advantage to hypermiling and similar to this. There is one merge where there is a busy 3 lane onramp entering my 8 lane divided highway on the right. One by one the lanes merge and end. In my left lane days I ALWAYS was in the left lane and had to come to almost a complete stop when this traffic merged down into our 4 lanes. Then I would gas/brake, gas/brake along for maybe to mile to get out of it. Traveling at 60 mph (psl 65 mph) in the right lane I noticed that I would not even have to slow down most days. In fact I might have to slow down, not stop, once every 2 or 3 weeks. What I see is that I used to be right in a pack and would have to brake because all the other vehicles were braking. For some reason, by me going a few mph slower, I am just about always between the packs of vehicles when I reach this merge. Also the merging vehicles all zip over to the left ASAP and cause those lanes to have more traffic entering and everyone leaving the left lanes.

I know I am not adjusting my speed to avoid the traffic, this is my regular commute and I have the speeds down. I come to the top of a hill before this spot doing 55 mph, and I can see the traffic merging ahead. I accelerate to 60 mph (slight downhill) just before the merge and by the time all the lanes have merged (slight uphill) I am going 55 mph and hit my exit at 50 mph FASing to the light with just enough speed so as not to piss folks behind me off.

Just thought it was interesting that by going a little slower than the major flow of traffic I have avoided using brakes for this merge.
  Reply With Quote
Old 01-26-2010, 07:17 PM   #13 (permalink)
epic stock master
luvit's Avatar
Join Date: Oct 2009
Location: US
Posts: 377

86 Accord LX (carb) - '86 Honda Accord LX
90 day: 35.57 mpg (US)
Thanks: 19
Thanked 17 Times in 15 Posts
Originally Posted by MadisonMPG View Post
A secondary wave would result. It only takes on person slowing down to start a huge wave.

i was in the air force. we marched a lot.. it was boring, but efficient.
along roads where we had to be single file, we would walk.

my lastname initial is near the end of the alphabet, so i was one of the few on the end of the line. the waves produced at the front of the line were so exaggerated once they reached us at the end.
it was terribly hard and painful to walk a few steps then run to keep up.. walk.. run alot.. walk.. run alot, repeat.

i think everyone should experience hours of that. just so i don't resent it so bad.
single person car thread
  Reply With Quote
Old 01-26-2010, 08:21 PM   #14 (permalink)
...beats walking...
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,522 Times in 1,123 Posts
...it's also called "rubber-banding" where traffic cyclically 'bunches up" and "stretches out" over and over again.

...one (ugh!) countermeasure to this are California's "on-ramp" traffic-lamps which keep the number of "on-rampers" trying to get onto the freeway at a single time (usually right after a cross-street red-light) from "crowding" the slow-speed (right) freeway lane.

...a single Highway Patrol car in the high-speed lane also works too.
  Reply With Quote
Old 01-26-2010, 11:31 PM   #15 (permalink)
Join Date: Dec 2009
Location: NY
Posts: 865
Thanks: 29
Thanked 111 Times in 83 Posts
Originally Posted by NiHaoMike View Post
What if there was a group of hypermilers doing "wave cancellation" in each lane such that they cannot be passed?
Back in the Seventies during the gas crisis, when the 55 MPH speed limit was the national obsession and became law, some state highway patrols decided it would be a good idea for them to drive three patrol cars abreast of each other on interstate highways at 55 to keep traffic from passing them. They stopped that practice because it was found to be unsafe.

Hey, if anyone wants to drive more slowly than other traffic, that's their privilege - but not in the left lane. Live and let live.
  Reply With Quote
Old 01-27-2010, 09:51 AM   #16 (permalink)
Efficiency freak
Bearleener's Avatar
Join Date: Mar 2008
Location: Berlin, Germany
Posts: 58

Frugolf - '96 VW Golf wagon
90 day: 40.36 mpg (US)
Thanks: 0
Thanked 14 Times in 6 Posts
Over the past year or so I've noticed a trend toward a higher percentage of the drivers behind me noticing what I'm up to and staying patiently behind me rolling up to the stop light. And a curious skeptic will then notice with how much remaining momentum we can cruise across the intersection when light turns green. So there's hope for mankind yet.

BTW here's a pretty cool JavaScript microsimulation of road traffic:
Welcome to the Physics and Traffic Homepage of Martin Treiber
You can adjust the various traffic volumes and observe the effects.


You ever notice that birds pulse & glide, too?
  Reply With Quote
Reply  Post New Thread

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Idea for government: Traffic Light Timers newtonsfirstlaw General Efficiency Discussion 29 03-10-2012 11:33 AM
BMW advocating for smarter traffic lights abroad and in U.S. MetroMPG General Efficiency Discussion 14 11-13-2009 11:34 PM
Re-Institute National 55mph? Bror Jace General Efficiency Discussion 100 07-29-2008 05:04 AM
Traffic experiments: a cure for waves and jams (improves other people's MPG too) MetroMPG Hypermiling / EcoDriver's Ed 13 01-20-2008 09:35 PM
Article: Road traffic up 84% in the U.K. MetroMPG General Efficiency Discussion 20 12-15-2007 02:34 PM

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com