JAPAN | High Speed Rail

[ChrisH]

That's a great graph, thanks for producing it. Can't see that sort of thing happening in the UK any time soon!

[bmfarley]

Originally Posted by Richard Mlynarik

I made a time-distance graph of traffic on the Tokaido-Sanyo Shinkansen

That's pretty darn impressive! What software did you use? MS Excel?

[Svartmetall]

Doesn't look like Excel, but that is an absolutely amazing graph. The Japanese really did go all out with their rail network - it's something to be infinitely proud of.

[TRZ]

Originally Posted by Svartmetall

The Japs really did go all out with their rail network

"Jap" is a derogatory term, FYI.



Damn, that's one hell of a graph, no wonder JR Central is building that maglev relief line

[Tri-ring]

If you draw the Tokyo to Fukuoka(westbound) schedule from the bottom up you would complete the diagram.

JR Tokai boasts punctuality of the Tokaido Shinkansen with average delay per train throughout the year of only 0.3minutes.
Average of total time of late departures and arrivals of one minute or more from/to Tokyo and Shin-Osaka stations,
including delays caused by uncontrollable reasons such as heavy rain, typhoons, and heavy snowfall.

JR Tokai data book 2007

[jchernin]

[Svartmetall]

Originally Posted by TRZ

"Jap" is a derogatory term, FYI.

Sorry, I didn't know that. It's what they are called in Britain... I'll go back and edit my post so as not to cause offense.

[Welshlad]

not wanting to stir a storm here, but how is "jap" derogatory, its like me saying being called a "brit" is derogatory. I'm sure its more to do with the context...

[SungIEman]

jap for Japanese, nip for Chinese, and goose for Korean were all derogatory term during different wars. But time has changed, and people has also come to accept it. Although AFAIK, nip and goose's still quite offensive and will get you a few stare.

[TRZ]

Originally Posted by SungIEman

jap for Japanese, nip for Chinese, and goose for Korean were all derogatory term during different wars. But time has changed, and people has also come to accept it. Although AFAIK, nip and goose's still quite offensive and will get you a few stare.

"Nip" and "Jap" both refer to Japanese ("Nippon" is "Japan" in Japanese language), and are terms used by the western allies from World War II to refer to the Japanese at the time. The Chinese one you are referring to is "chink", which is just as bad as any of the others. "Brit" to my knowledge, has no war connections, but I am unclear on the background of that abbreviation.

[Richard Mlynarik]

Originally Posted by bmfarley

That's pretty darn impressive! What software did you use? MS Excel?

I have personal code I use to generate the basic graph and labels (as Postscript) from a table of data.
It can be used for much less interesting and much less competent lines also: eg http://www.pobox.com/users/mly/Caltr...0406+xings.pdf

Cutting and pasting the times from the PDF files was tiresomely done by hand, no software in my possession being adequate to the task.

Then there's a whole lot of hand editing and labelling and prettification done in Illustrator. It was quite a lot of effort, and not very automated

Re "Japs", etc, into which this thread misdirected: that's only even vaguely offensive in America, and certainly nowhere else in the English-speaking world. The sooner Americans stop pretending they're the entire world and the sooner they stop lecturing to the world the better for everybody.

PS here are some other interesting graphically presented train operating data, this time from Switzerland, showing platform occupancy, and indirectly train connections and the overall "takt":
http://www.pobox.com/users/mly/SBB/Z...0407-an-ab.pdf (Zürich HB)
http://www.pobox.com/users/mly/SBB/L...0407-an-ab.pdf (Luzern)
http://www.pobox.com/users/mly/SBB/A...0407-an-ab.pdf (Arth-Goldau)

And here's really excellent takt graphical communication:
http://static.nzz.ch/download/pdf/Fa...netzgrafik.pdf
(entire national long-distance network, not showing local traffic)
http://www.zvv.ch/pdf/Netzgrafik%20S...0ZH%202007.pdf
(just Zürich area S-Bahn, not showing bus or tram traffic)

"We [Swiss transportation planners] are lazy; we just plan one hour and repeat it all day every year."

[Chavito]

Really interesting.

Great work!!!!

[japanese001]

Kawasaki Line
high-resolution http://www.youtube.com/watch?v=WtgR7RlpVrI&fmt=6

Chiba monorail
high-resolution http://www.youtube.com/watch?v=-tCwFZgoTDQ&fmt=6

Tokyo yurikamome
high-resolution http://www.youtube.com/watch?v=GMgwsLOvV7k&fmt=6


Morning drive in Tokyo
http://www.skyscrapercity.com/showth...6#post20273756

[Ryuhei]

Wow, great videos! And the High Quality links!

[richiebogie]

Originally Posted by Minato ku

I don't really like the "nose" of new N700, I prefer the design of the 500.

Originally Posted by xXFallenXx

the 500 looks a lot better than the 700.

Could be function above form.

This nose may optimally distribute air to the edge above the train, and the 2 side edges. In particular it may distribute air evenly to the upper corners.

How the nose works in reverse at the end of the train is possibly more important for drag minimisation.

It may also utilise findings from hypersonic theory, which finds benefits in smooth changes in cross sectional area. That is why it appears to start thick, and then thicken slower. In reality the cross sectional area may be increasing linearly.

This design certainly sets Hitachi apart from Siemens and Alstom.

[elfabyanos]

I understand it to be for the benefit of tunnels, balanced with the general aerodynamic requirements. When any train enters a tunnel a shock wave travels down the tunnel at the speed of sound. The intensity of the shock wave depends on the displacement of air by the vehicle and the speed of that vehicle - the speed variable being square and the displacement variable cubic. Hence the shock wave gets quite huge at shinkansen speeds. This type of nose is designed to mitigate the intensity of the shock wave as it enters the tunnel, same with the duck-billed Spanish train. I don't really understand exactly why the shock wave is that much of a problem.

[elfabyanos]

To back up what I just said, here's a vid of shinkansen coming out of a short tunnel, probably about 150 metres long, you can really here the shock especially at 0.38

[JR-fan]

Only RESPECT FOR THE BESTS , the BIRTHPLACE of High Speed Trains and for the country that leads the railway technology ...
JR (East-West-Central-Kyushu) RULES !
Shinkansen FOR EVER !

[elfabyanos]

Ok now you're just getting annoying.

[JR-fan]

I can' t understand where is your problem.
Isn' t Japan the birthplace of High Speed Trains or they aren't the leading nation in railway technology ?