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FR2254842A1 - Electronic traffic detector laid across roadway - is easy to install and well protected by flexible PVC type strips - Google Patents

Electronic traffic detector laid across roadway - is easy to install and well protected by flexible PVC type strips

Info

Publication number
FR2254842A1
FR2254842A1 FR7345069A FR7345069A FR2254842A1 FR 2254842 A1 FR2254842 A1 FR 2254842A1 FR 7345069 A FR7345069 A FR 7345069A FR 7345069 A FR7345069 A FR 7345069A FR 2254842 A1 FR2254842 A1 FR 2254842A1
Authority
FR
France
Prior art keywords
roadway
install
easy
traffic detector
well protected
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.)
Granted
Application number
FR7345069A
Other languages
French (fr)
Other versions
FR2254842B3 (en
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.)
CHARRE JEAN LOUIS FR
Original Assignee
CHARRE JEAN LOUIS FR
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 CHARRE JEAN LOUIS FR filed Critical CHARRE JEAN LOUIS FR
Priority to FR7345069A priority Critical patent/FR2254842A1/en
Publication of FR2254842A1 publication Critical patent/FR2254842A1/en
Application granted granted Critical
Publication of FR2254842B3 publication Critical patent/FR2254842B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

Traffic detector for automatically counting vehicles operates by variation in inductance of a detecting loop consisting of at least one spiral formed by an electrical conductor, e.g. a copper-core flexible wire with plastics insulation of dia. 10-20 tenths of a mm. The conductor is adhered to the roadway and covered with a protective strip which is also adhered to the roadway. The protective strip is made of PVC-type plastics, and has a thickness of 2 1/2 mm. and a width of 1 mm.
FR7345069A 1973-12-17 1973-12-17 Electronic traffic detector laid across roadway - is easy to install and well protected by flexible PVC type strips Granted FR2254842A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7345069A FR2254842A1 (en) 1973-12-17 1973-12-17 Electronic traffic detector laid across roadway - is easy to install and well protected by flexible PVC type strips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7345069A FR2254842A1 (en) 1973-12-17 1973-12-17 Electronic traffic detector laid across roadway - is easy to install and well protected by flexible PVC type strips

Publications (2)

Publication Number Publication Date
FR2254842A1 true FR2254842A1 (en) 1975-07-11
FR2254842B3 FR2254842B3 (en) 1976-10-15

Family

ID=9129325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7345069A Granted FR2254842A1 (en) 1973-12-17 1973-12-17 Electronic traffic detector laid across roadway - is easy to install and well protected by flexible PVC type strips

Country Status (1)

Country Link
FR (1) FR2254842A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003303A1 (en) * 1986-10-31 1988-05-05 Gemmer Hans Juergen Process for the provision of induction loops on railway track surfaces, heat or humidity detecting layers and control tracks for unmanned vehicles
US4945356A (en) * 1983-06-09 1990-07-31 Minnesota Mining And Manufacturing Company Strip material for and a surface mounted inductive loop
FR2693301A1 (en) * 1992-07-06 1994-01-07 Est Centre Etudes Tech Equip Device for detecting one or more wheels of a mobile rolling machine.
WO1994012730A1 (en) * 1992-12-02 1994-06-09 Awa Limited A surface mounted sensor
US6337640B2 (en) 1999-03-31 2002-01-08 Diamond Consulting Services Limited Inductive loop sensor for traffic detection, and traffic monitoring apparatus and method using such a loop sensor
US6483443B1 (en) 1999-03-31 2002-11-19 Diamon Consulting Services Limited Loop sensing apparatus for traffic detection

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4945356A (en) * 1983-06-09 1990-07-31 Minnesota Mining And Manufacturing Company Strip material for and a surface mounted inductive loop
WO1988003303A1 (en) * 1986-10-31 1988-05-05 Gemmer Hans Juergen Process for the provision of induction loops on railway track surfaces, heat or humidity detecting layers and control tracks for unmanned vehicles
FR2693301A1 (en) * 1992-07-06 1994-01-07 Est Centre Etudes Tech Equip Device for detecting one or more wheels of a mobile rolling machine.
WO1994001847A1 (en) * 1992-07-06 1994-01-20 Centre D'etudes Techniques De L'equipement De L'est Device and process for the detection of one or more vehicle wheels
WO1994012730A1 (en) * 1992-12-02 1994-06-09 Awa Limited A surface mounted sensor
US6337640B2 (en) 1999-03-31 2002-01-08 Diamond Consulting Services Limited Inductive loop sensor for traffic detection, and traffic monitoring apparatus and method using such a loop sensor
US6483443B1 (en) 1999-03-31 2002-11-19 Diamon Consulting Services Limited Loop sensing apparatus for traffic detection

Also Published As

Publication number Publication date
FR2254842B3 (en) 1976-10-15

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse