Piston effect

Piston effect - forced-air flow inside a tunnel caused by moving vehicles. Article “Piston effect” in English Wikipedia has 40.9 points for quality (as of July 1, 2025). The article contains 18 references and 8 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 2.15 points.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

Since the creation of article “Piston effect”, its content was written by 66 registered users of English Wikipedia and edited by 122 registered Wikipedia users in all languages.

The article is cited 27 times in English Wikipedia and cited 490 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #55850 in October 2015
• Global: #104802 in August 2005

The highest popularity rank from 2008:

• Local (English): #231332 in September 2022
• Global: #284144 in June 2009

There are 6 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Piston effect		40.943
2	Hungarian (hu) Dugattyúhatás		38.7722
3	Chinese (zh) 活塞效應		28.7424
4	French (fr) Effet piston		24.9123
5	Persian (fa) اثر پیستونی		12.1395
6	Japanese (ja) トンネル微気圧波		7.4682

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The following table shows the most popular language versions of the article.

The most popular language versions of the article "Piston effect" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Piston effect		308 070
2	Japanese (ja) トンネル微気圧波		251 492
3	Chinese (zh) 活塞效應		69 644
4	French (fr) Effet piston		9 663
5	Hungarian (hu) Dugattyúhatás		651
6	Persian (fa) اثر پیستونی		608

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Piston effect" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Piston effect		1 607
2	Japanese (ja) トンネル微気圧波		584
3	Chinese (zh) 活塞效應		205
4	French (fr) Effet piston		107
5	Hungarian (hu) Dugattyúhatás		17
6	Persian (fa) اثر پیستونی		5

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Piston effect" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Piston effect		66
2	Japanese (ja) トンネル微気圧波		27
3	Chinese (zh) 活塞效應		22
4	French (fr) Effet piston		5
5	Persian (fa) اثر پیستونی		1
6	Hungarian (hu) Dugattyúhatás		1

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Piston effect" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Piston effect		0
2	Persian (fa) اثر پیستونی		0
3	French (fr) Effet piston		0
4	Hungarian (hu) Dugattyúhatás		0
5	Japanese (ja) トンネル微気圧波		0
6	Chinese (zh) 活塞效應		0

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The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Piston effect" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Japanese (ja) トンネル微気圧波		436
2	English (en) Piston effect		27
3	Chinese (zh) 活塞效應		15
4	French (fr) Effet piston		8
5	Persian (fa) اثر پیستونی		2
6	Hungarian (hu) Dugattyúhatás		2

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#	Language	Value
en	English Piston effect
fa	Persian اثر پیستونی
fr	French Effet piston
hu	Hungarian Dugattyúhatás
ja	Japanese トンネル微気圧波
zh	Chinese 活塞效應

Best Rank

English: #231332 09.2022

Global: #284144 06.2009

Best Rank

English: #55850 10.2015

Global: #104802 08.2005

On 15 February 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Jeffrey Epstein, Wuthering Heights, 2026 Winter Olympics, Epstein files, Ilia Malinin, Wuthering Heights, Ghislaine Maxwell, Lucas Pinheiro Braathen, 2026 Winter Olympics medal table, Valentine's Day.

In English Wikipedia the most popular articles on that day were: Jeffrey Epstein, Wuthering Heights, Wuthering Heights (2026 film), 2026 Winter Olympics, Lucas Pinheiro Braathen, Ice hockey at the 2026 Winter Olympics – Men's tournament, Epstein files, John F. Kennedy Jr., Anthony Kim, James Van Der Beek.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information