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Jammed and Free-Flowing Phases of the Biham-Middleton-Levine Traffic Model

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Voting period is over. Please don't add any new votes. Voting period ends on 9 Feb 2011 at 00:59:53 (UTC)

Original - The Biham-Middleton-Levine traffic model for a 144 x 89 lattice, with a traffic density of 60%. The model has self-organized to a globally jammed phase. The red cars and blue cars take turns to move; the red ones only move rightwards, and the blue ones move downwards. Every time, all the cars of the same colour try to move one step if there is no car in front of it. Please note that the video has been sped up such that only one in four frames is shown.
Original - The Biham-Middleton-Levine traffic model for a 144 x 89 lattice, with a traffic density of 28%. The model has self-organized to a free flowing phase. The red cars and blue cars take turns to move; the red ones only move rightwards, and the blue ones move downwards. Every time, all the cars of the same colour try to move one step if there is no car in front of it. Please note that the video has been sped up such that only one in four frames is shown.
Reason
Earlier, the intermediate phases were promoted to Featured Picture status. Since the non-intermediate phases tend to dominate more, especially at extreme traffic concentrations; and were discovered earlier (in fact the original paper by Biham, Middleton, and Levine only talks about the jammed and free flowing phases and not the intermediate ones), the EV with these videos are arguably even stronger and certainly deserve their own FP status. The video quality is as high as I could get it to be with the Ogg Theora codec (which is the only one that Wikipedia supports) whilst maintaining a reasonable filesize. Unfortunately, due to the limitations of Theora, there are some minor artifacts; nevertheless, these do not detract significantly from the quality. These videos ought to be added to the BML Traffic Model featured picture set.
Articles in which this image appears
Biham-Middleton-Levine traffic model
FP category for this image
BML Traffic Model (featured picture set);
Creator
Purpy Pupple
  • Support as nominator --Purpy Pupple (talk) 00:59, 31 January 2011 (UTC)[reply]
  • Support As an editor who has made a number of animations myself for donating to Wikipedia, I know first hand just how much time and effort this sort of thing requires. No single fixed image could demonstrate the concept of “traffic increasingly jamming up” than an animation such as this. Having an animation as the Featured Picture for one day on the Main Page will illustrate not only traffic patterns, it will illustrate the virtue of an electronic encyclopedia over a print edition. Greg L (talk) 02:34, 31 January 2011 (UTC)[reply]
  • support What Greg said. More than "a pretty animation", this is a technically sound, factually correct piece -- which makes it doubly valuable. Jon C (talk) 04:26, 1 February 2011 (UTC)[reply]
  • These are very nice animations. I noticed that in File:BML N=200 P=36.png, the red cars move up and the blue cars move right. In these, the red cars move right and the blue ones move down. Mathematically these are equivalent, but visually the appearance is not the same. In particular, File:BML N=200 P=36.png does not appear to be jammed if the colors are interpreted as in these images, and vice versa. I'm not sure whether this is relevant to the FP nomination, but if the goal is perfection, all the images in the article should use the same convention. — Carl (CBM · talk) 16:20, 1 February 2011 (UTC)[reply]
  • Support: I'd like to see these put together with the other two BML FP's to make a set of four. It's the transition from free flowing to completely jammed as a function of density, with the transitional states in between, that give the sequence it's EV, the individual animations aren't that informative.--RDBury (talk) 21:16, 3 February 2011 (UTC)[reply]
  • Support As per nom. Nicely done. SMasters (talk) 12:53, 7 February 2011 (UTC)[reply]

Promoted File:Biham-Middleton-Levine traffic model self-organized to a globally jammed phase.ogv --Makeemlighter (talk) 05:02, 9 February 2011 (UTC)[reply]

Promoted File:Biham-Middleton-Levine traffic model self-organized to a free flowing phase.ogv --Makeemlighter (talk) 05:02, 9 February 2011 (UTC)[reply]

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