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GB1069302A - Improvements in or relating to road traffic sensing apparatus - Google Patents

Improvements in or relating to road traffic sensing apparatus

Info

Publication number
GB1069302A
GB1069302A GB4817164A GB4817164A GB1069302A GB 1069302 A GB1069302 A GB 1069302A GB 4817164 A GB4817164 A GB 4817164A GB 4817164 A GB4817164 A GB 4817164A GB 1069302 A GB1069302 A GB 1069302A
Authority
GB
United Kingdom
Prior art keywords
road traffic
loop
way
loops
relating
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.)
Expired
Application number
GB4817164A
Inventor
Eric Parker
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.)
Decca Ltd
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Priority to GB4817164A priority Critical patent/GB1069302A/en
Publication of GB1069302A publication Critical patent/GB1069302A/en
Expired 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

1,069,302. Road traffic detectors. DECCA Ltd. Nov. 26, 1965 [Nov. 26, 1964], No. 48171/64. Heading G4Q. A road traffic detector system comprises a pair of spaced apart low-sensitivity inductive loops L1 and L2 which may be used to measure the speed of a vehicle and extend the right-ofway period in accordance with the speed, and a larger high sensitivity loop L3 which is used to register a demand for right-of-way; the loop L3 guarantees detection of a vehicle which might be missed by the lower sensitivity loops L1 and L2. The loops L1 and L2 may be used only when the route has right-of-way, and the loop L3 when the route does not have right-of-way.
GB4817164A 1964-11-26 1964-11-26 Improvements in or relating to road traffic sensing apparatus Expired GB1069302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4817164A GB1069302A (en) 1964-11-26 1964-11-26 Improvements in or relating to road traffic sensing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4817164A GB1069302A (en) 1964-11-26 1964-11-26 Improvements in or relating to road traffic sensing apparatus

Publications (1)

Publication Number Publication Date
GB1069302A true GB1069302A (en) 1967-05-17

Family

ID=10447643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4817164A Expired GB1069302A (en) 1964-11-26 1964-11-26 Improvements in or relating to road traffic sensing apparatus

Country Status (1)

Country Link
GB (1) GB1069302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2408372A (en) * 2003-11-20 2005-05-25 Golden River Traffic Ltd Apparatus and method for determining the presence of a vehicle on a highway

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2408372A (en) * 2003-11-20 2005-05-25 Golden River Traffic Ltd Apparatus and method for determining the presence of a vehicle on a highway

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