JPS53140850A - System for controlling ventllation in tunnels - Google Patents

System for controlling ventllation in tunnels

Info

Publication number
JPS53140850A
JPS53140850A JP5433277A JP5433277A JPS53140850A JP S53140850 A JPS53140850 A JP S53140850A JP 5433277 A JP5433277 A JP 5433277A JP 5433277 A JP5433277 A JP 5433277A JP S53140850 A JPS53140850 A JP S53140850A
Authority
JP
Japan
Prior art keywords
tunnels
ventllation
controlling
polluted
automobiles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5433277A
Other languages
Japanese (ja)
Inventor
Hideo Ota
Yutaka Kubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5433277A priority Critical patent/JPS53140850A/en
Publication of JPS53140850A publication Critical patent/JPS53140850A/en
Pending legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)

Abstract

PURPOSE: To control light permeation rate, carbon oxides concentration, and the like within such a range as to maintain a healthy condition of the environmental in tunnels which are polluted by emission from automobiles.
COPYRIGHT: (C)1978,JPO&Japio
JP5433277A 1977-05-13 1977-05-13 System for controlling ventllation in tunnels Pending JPS53140850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5433277A JPS53140850A (en) 1977-05-13 1977-05-13 System for controlling ventllation in tunnels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5433277A JPS53140850A (en) 1977-05-13 1977-05-13 System for controlling ventllation in tunnels

Publications (1)

Publication Number Publication Date
JPS53140850A true JPS53140850A (en) 1978-12-08

Family

ID=12967631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5433277A Pending JPS53140850A (en) 1977-05-13 1977-05-13 System for controlling ventllation in tunnels

Country Status (1)

Country Link
JP (1) JPS53140850A (en)

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