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	<title>Comments on: It&#8217;s the Traffic Flow, Stupid!</title>
	<atom:link href="http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/</link>
	<description>Korea... in Blog Format</description>
	<pubDate>Wed,  3 Dec 2008 04:47:00 +0000</pubDate>
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		<title>By: Arghaeri</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145791</link>
		<dc:creator>Arghaeri</dc:creator>
		<pubDate>Fri, 04 Apr 2008 06:21:49 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145791</guid>
		<description>#30 &#38; #31 the best kind of science, slag it off without investigating it or trying it!

I had a Prius it most definately saved me fuel in exactly the situation we're talking about, slow high density traffic.

#30 "The under powered engines have to work twice as hard as normal engines." 
Actually they don't most of the time, during acceleration they are supplemented by the electric motor which has a huge amount of torque to easily overcome inertia. At low speed with gentle acceleration they are switched off altogether so are hardly working twice as hard since the electric motor is doing the work. At steady expressway speeds the electric motor recharges off the surplus electricity, and the normal engine has to do very little since it is only maintain inertia not accelerating and is therefore easily powerful enough. In any case at 1,500cc the motor was only marginally lower than a standard europena midsize. (1,800cc.)  On general highway driving the benefits were marginal, because the electric motor comes in very little, mostly when accelerating to overtake or up steep hills, however, on urban rush hours I was getting huge improvements over my previous car, otherwise similar in size &#38; power.   

#31 "Think about it: you use fuel to produce electricity". 
Actually thats the straight electric &#38; hydrogen cars you then go on to recommend. Fuel is used to make electricity at the power stations (albeit more efficiently perhaps), electricity is used to procude the hydrogen, then you it has to be tankered everywhere just the same as gasoline, and kept under high pressure...etc...
 
Yes, the hybrids use surplus electricity from the alternator when the car is cruising under normal condition and most of that fuel was being used anyway, but it also uses re-regnerative energy from engine braking when slowing down, hence the fact that the real benefits are in urban driving, rather than flat speed expressway driving, since the motor boosts power and reduces fuel use when moving off, and is recharged when slowing back down to a stop.   

Hybrids sure do show more efficiency in terms of petrol consumption in normal urban use, however whether overall more environmentally friendly given the engergy use in manufacturing the batteries / electric motors etc in the first place is another question.

Roll on fuel cell technology and mini nuclear fusion motors?</description>
		<content:encoded><![CDATA[<p>#30 &amp; #31 the best kind of science, slag it off without investigating it or trying it!</p>
<p>I had a Prius it most definately saved me fuel in exactly the situation we&#8217;re talking about, slow high density traffic.</p>
<p>#30 &#8220;The under powered engines have to work twice as hard as normal engines.&#8221;<br />
Actually they don&#8217;t most of the time, during acceleration they are supplemented by the electric motor which has a huge amount of torque to easily overcome inertia. At low speed with gentle acceleration they are switched off altogether so are hardly working twice as hard since the electric motor is doing the work. At steady expressway speeds the electric motor recharges off the surplus electricity, and the normal engine has to do very little since it is only maintain inertia not accelerating and is therefore easily powerful enough. In any case at 1,500cc the motor was only marginally lower than a standard europena midsize. (1,800cc.)  On general highway driving the benefits were marginal, because the electric motor comes in very little, mostly when accelerating to overtake or up steep hills, however, on urban rush hours I was getting huge improvements over my previous car, otherwise similar in size &amp; power.   </p>
<p>#31 &#8220;Think about it: you use fuel to produce electricity&#8221;.<br />
Actually thats the straight electric &amp; hydrogen cars you then go on to recommend. Fuel is used to make electricity at the power stations (albeit more efficiently perhaps), electricity is used to procude the hydrogen, then you it has to be tankered everywhere just the same as gasoline, and kept under high pressure&#8230;etc&#8230;</p>
<p>Yes, the hybrids use surplus electricity from the alternator when the car is cruising under normal condition and most of that fuel was being used anyway, but it also uses re-regnerative energy from engine braking when slowing down, hence the fact that the real benefits are in urban driving, rather than flat speed expressway driving, since the motor boosts power and reduces fuel use when moving off, and is recharged when slowing back down to a stop.   </p>
<p>Hybrids sure do show more efficiency in terms of petrol consumption in normal urban use, however whether overall more environmentally friendly given the engergy use in manufacturing the batteries / electric motors etc in the first place is another question.</p>
<p>Roll on fuel cell technology and mini nuclear fusion motors?</p>
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		<title>By: dokdoforever</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145661</link>
		<dc:creator>dokdoforever</dc:creator>
		<pubDate>Thu, 03 Apr 2008 08:11:48 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145661</guid>
		<description>Seoul has some of the most confusing and poorly planned highway interchanges ever.  Take the two highways on either side of the Han for instance.  The highway on the North side only connects to a couple of the bridges that cross the river, so if you miss one, too bad for you, you'll have to travel half-way across the city for another chance.  For most of the south side, there are actually two highways running parallel to one another, which makes for some very interesting exits, especially near Yoido.  To go to Yoido if you're travelling east bound, you have to make a loop, travel west bound,then make another loop, and travel east bound again before taking a left - just crazy.  And then, lots of times, they'll put the sign of the exit BEHIND the actual exit!  So, it looks like the exit is coming, but woops, you already passed it.  And then there's the usually very short lanes for merging, and other fun things, like not allowing left turns, or u turns for miles.  I can't understand why anyone would choose to drive a car during rush hour here.</description>
		<content:encoded><![CDATA[<p>Seoul has some of the most confusing and poorly planned highway interchanges ever.  Take the two highways on either side of the Han for instance.  The highway on the North side only connects to a couple of the bridges that cross the river, so if you miss one, too bad for you, you&#8217;ll have to travel half-way across the city for another chance.  For most of the south side, there are actually two highways running parallel to one another, which makes for some very interesting exits, especially near Yoido.  To go to Yoido if you&#8217;re travelling east bound, you have to make a loop, travel west bound,then make another loop, and travel east bound again before taking a left - just crazy.  And then, lots of times, they&#8217;ll put the sign of the exit BEHIND the actual exit!  So, it looks like the exit is coming, but woops, you already passed it.  And then there&#8217;s the usually very short lanes for merging, and other fun things, like not allowing left turns, or u turns for miles.  I can&#8217;t understand why anyone would choose to drive a car during rush hour here.</p>
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		<title>By: ecorn</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145597</link>
		<dc:creator>ecorn</dc:creator>
		<pubDate>Thu, 03 Apr 2008 04:13:21 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145597</guid>
		<description>@31 - While nulear power production as a percentage of the total here in Korea certainly outpaces countries like the US, According to the IAEA as of 2001 it accounted for 39.2% of production. This is only slightly higher than the 38.7% produced by coal. In all, thermal sources (coal, gas and oil) account for 50.9% of production. Hydro power is about 9.6%.

Link to PDF: http://tinyurl.com/2rhbqc</description>
		<content:encoded><![CDATA[<p>@31 - While nulear power production as a percentage of the total here in Korea certainly outpaces countries like the US, According to the IAEA as of 2001 it accounted for 39.2% of production. This is only slightly higher than the 38.7% produced by coal. In all, thermal sources (coal, gas and oil) account for 50.9% of production. Hydro power is about 9.6%.</p>
<p>Link to PDF: <a href="http://tinyurl.com/2rhbqc" rel="nofollow">http://tinyurl.com/2rhbqc</a></p>
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		<title>By: dogbert</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145568</link>
		<dc:creator>dogbert</dc:creator>
		<pubDate>Thu, 03 Apr 2008 03:05:21 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145568</guid>
		<description>&lt;blockquote&gt;Huh? This is used in the US? Where?&lt;/blockquote&gt;

They've had this system for decades in many parts of California.

Have you ever traveled in the U.S. outside the gray confines of the Bronx and northern New Jersey?</description>
		<content:encoded><![CDATA[<blockquote><p>Huh? This is used in the US? Where?</p></blockquote>
<p>They&#8217;ve had this system for decades in many parts of California.</p>
<p>Have you ever traveled in the U.S. outside the gray confines of the Bronx and northern New Jersey?</p>
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		<title>By: Whatev</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145548</link>
		<dc:creator>Whatev</dc:creator>
		<pubDate>Thu, 03 Apr 2008 01:52:11 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145548</guid>
		<description>Hybrids are a waste of energy.  Think about it: you use fuel to produce electricity.  It's just a tad less convoluted than the hydrogen car.  What people need are electric cars (or even air cars).  It would be perfect for countries like Korea where most of the electrical power is produced at nuclear power plants.</description>
		<content:encoded><![CDATA[<p>Hybrids are a waste of energy.  Think about it: you use fuel to produce electricity.  It&#8217;s just a tad less convoluted than the hydrogen car.  What people need are electric cars (or even air cars).  It would be perfect for countries like Korea where most of the electrical power is produced at nuclear power plants.</p>
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		<title>By: Railwaycharm</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145536</link>
		<dc:creator>Railwaycharm</dc:creator>
		<pubDate>Thu, 03 Apr 2008 00:42:01 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145536</guid>
		<description>#27 I have always thought in regards to saving fuel that Korea would be a perfect market for introducing hybrid cars.

Hybrid cars are a jerk-off. They do not save fuel. The under powered engines have to work twice as hard as normal engines. What needs to happen is reforming the traffic signals and, get rid of the cross-walks. Oh, and Marmot, when you attend the town hall meeting, ask if the po po can start ticketing the fucking motor bikers who barrel down the sidewalks.</description>
		<content:encoded><![CDATA[<p>#27 I have always thought in regards to saving fuel that Korea would be a perfect market for introducing hybrid cars.</p>
<p>Hybrid cars are a jerk-off. They do not save fuel. The under powered engines have to work twice as hard as normal engines. What needs to happen is reforming the traffic signals and, get rid of the cross-walks. Oh, and Marmot, when you attend the town hall meeting, ask if the po po can start ticketing the fucking motor bikers who barrel down the sidewalks.</p>
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		<title>By: Opus</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145527</link>
		<dc:creator>Opus</dc:creator>
		<pubDate>Thu, 03 Apr 2008 00:03:46 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145527</guid>
		<description>GI Korea,

I don't think the hybrid will be a big seller here because Koreans can't claim that they invented the technology.  

And as for the self important traffic police, the most effective thing they can do is keep the gridlock at bay during rush hour.  (I actually saw them stop an express bus near city hall and take the drivers license the week after the inaguration) Keep the gloved hands off the traffic controls, you only know what you can see from your post, you don't know that eight lanes of traffic are backed up for three kilometers because of your actions.

We must remember this is the first generation of car owners. (hence the poor driving etiquette and wild west feel of the roads) Common folk didn't have their own cars until after the 88 Olympics and their driving mentors are the bus and taxi drivers with all the "experience".

MARMOT,  Are you taking notes for the next Seoul Town Hall?</description>
		<content:encoded><![CDATA[<p>GI Korea,</p>
<p>I don&#8217;t think the hybrid will be a big seller here because Koreans can&#8217;t claim that they invented the technology.  </p>
<p>And as for the self important traffic police, the most effective thing they can do is keep the gridlock at bay during rush hour.  (I actually saw them stop an express bus near city hall and take the drivers license the week after the inaguration) Keep the gloved hands off the traffic controls, you only know what you can see from your post, you don&#8217;t know that eight lanes of traffic are backed up for three kilometers because of your actions.</p>
<p>We must remember this is the first generation of car owners. (hence the poor driving etiquette and wild west feel of the roads) Common folk didn&#8217;t have their own cars until after the 88 Olympics and their driving mentors are the bus and taxi drivers with all the &#8220;experience&#8221;.</p>
<p>MARMOT,  Are you taking notes for the next Seoul Town Hall?</p>
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		<title>By: hardyandtiny</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145519</link>
		<dc:creator>hardyandtiny</dc:creator>
		<pubDate>Wed, 02 Apr 2008 22:53:36 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145519</guid>
		<description>I love driving in Seoul.</description>
		<content:encoded><![CDATA[<p>I love driving in Seoul.</p>
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		<title>By: GI Korea</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145513</link>
		<dc:creator>GI Korea</dc:creator>
		<pubDate>Wed, 02 Apr 2008 22:20:20 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145513</guid>
		<description>I have always thought in regards to saving fuel that Korea would be a perfect market for introducing hybrid cars.  Hybrids would be great for the traffic jammed streets of Seoul and would greatly reduce air pollution as well.  Plus the ajushis (especially the police) sleeping with their car idling wouldn't be using any fuel either.</description>
		<content:encoded><![CDATA[<p>I have always thought in regards to saving fuel that Korea would be a perfect market for introducing hybrid cars.  Hybrids would be great for the traffic jammed streets of Seoul and would greatly reduce air pollution as well.  Plus the ajushis (especially the police) sleeping with their car idling wouldn&#8217;t be using any fuel either.</p>
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		<title>By: Lana</title>
		<link>http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145506</link>
		<dc:creator>Lana</dc:creator>
		<pubDate>Wed, 02 Apr 2008 21:02:45 +0000</pubDate>
		<guid isPermaLink="false">http://www.rjkoehler.com/2008/04/02/its-the-traffic-flow-stupid/#comment-145506</guid>
		<description>It's used everywhere in the US.</description>
		<content:encoded><![CDATA[<p>It&#8217;s used everywhere in the US.</p>
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