GB1121502A - Road traffic signalling system - Google Patents

Road traffic signalling system

Info

Publication number
GB1121502A
GB1121502A GB2114164A GB2114164A GB1121502A GB 1121502 A GB1121502 A GB 1121502A GB 2114164 A GB2114164 A GB 2114164A GB 2114164 A GB2114164 A GB 2114164A GB 1121502 A GB1121502 A GB 1121502A
Authority
GB
United Kingdom
Prior art keywords
road
vehicle
closure
road traffic
signalling system
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
GB2114164A
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.)
JOHN STRADLING THOMAS
Original Assignee
JOHN STRADLING THOMAS
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 JOHN STRADLING THOMAS filed Critical JOHN STRADLING THOMAS
Priority to GB2114164A priority Critical patent/GB1121502A/en
Publication of GB1121502A publication Critical patent/GB1121502A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/096741—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where the source of the transmitted information selects which information to transmit to each vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1,121,502. Radio frequency systems. J. S THOMAS. 19 Aug., 1965 [22 May, 1964], No. 21141/64. Heading H4L. [Also in Divisions G1 and G4] A radio transmitter is disposed above a road to signal one of a plurality of safe speed limits to vehicles on the road. Each vehicle is equipped with a receiver provided with a corresponding plurality of reed relays (Fig. 3, not shown), or tuned circuits (Fig. 6, not shown), one of which is energized according to the transmitted signal and causes closure of a contact (A2, B2 or C2 in Fig. 2) which is in series with a corresponding contact closed by the speedometer when the speed exceeds the corresponding value. Closure of both contacts completes a circuit to an internal and an external lamp via a flasher unit to warn the driver and external observers that the vehicle is exceeding the speed limit.
GB2114164A 1964-05-22 1964-05-22 Road traffic signalling system Expired GB1121502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2114164A GB1121502A (en) 1964-05-22 1964-05-22 Road traffic signalling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2114164A GB1121502A (en) 1964-05-22 1964-05-22 Road traffic signalling system

Publications (1)

Publication Number Publication Date
GB1121502A true GB1121502A (en) 1968-07-31

Family

ID=10157893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2114164A Expired GB1121502A (en) 1964-05-22 1964-05-22 Road traffic signalling system

Country Status (1)

Country Link
GB (1) GB1121502A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467451A1 (en) * 1979-10-10 1981-04-17 Sarrosquy Gerard Vehicle speed roadside controller - uses transmitters and vehicle-mounted receivers to signal to driver, and cut off the ignition if maximum speed is exceeded
GB2375176A (en) * 2001-05-03 2002-11-06 Peter Blood Speed-limit alert arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467451A1 (en) * 1979-10-10 1981-04-17 Sarrosquy Gerard Vehicle speed roadside controller - uses transmitters and vehicle-mounted receivers to signal to driver, and cut off the ignition if maximum speed is exceeded
GB2375176A (en) * 2001-05-03 2002-11-06 Peter Blood Speed-limit alert arrangement

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