SE9604055L - Method and apparatus for controlling a traffic signal - Google Patents

Method and apparatus for controlling a traffic signal

Info

Publication number
SE9604055L
SE9604055L SE9604055A SE9604055A SE9604055L SE 9604055 L SE9604055 L SE 9604055L SE 9604055 A SE9604055 A SE 9604055A SE 9604055 A SE9604055 A SE 9604055A SE 9604055 L SE9604055 L SE 9604055L
Authority
SE
Sweden
Prior art keywords
speed
vehicle
traffic signal
traffic
signals
Prior art date
Application number
SE9604055A
Other languages
Swedish (sv)
Other versions
SE9604055D0 (en
Inventor
Martin Svan
Original Assignee
Martin Svan
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 Martin Svan filed Critical Martin Svan
Priority to SE9604055A priority Critical patent/SE9604055L/en
Publication of SE9604055D0 publication Critical patent/SE9604055D0/en
Publication of SE9604055L publication Critical patent/SE9604055L/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/08—Controlling traffic signals according to detected number or speed of vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

The device uses a speed detector (7,8) which detects the speed in a vehicle approaching the speed-restricted stretch of road (1) and changes the traffic signal (2,3) from green to yellow if the speed of the vehicle exceeds a speed limit. The speed detector changes the traffic signal from yellow to red if the speed of the vehicle continues to exceed the speed limit after a predetermined time interval, thus causing the driver of the vehicle to stop. Lasers can be employed for speed detection purposes, with parallel control of traffic signals by means of control signals dependent upon the detected speed. - The lasers do not have to be arranged in direct connection with the traffic signals, but can be at a distance from them. Their control signals can be transmitted to the traffic signals by wire or wireless. It is also possible for the speed detection to be made by radar apparatus, magnetic coils placed in the road surface or similar.
SE9604055A 1996-11-05 1996-11-05 Method and apparatus for controlling a traffic signal SE9604055L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9604055A SE9604055L (en) 1996-11-05 1996-11-05 Method and apparatus for controlling a traffic signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604055A SE9604055L (en) 1996-11-05 1996-11-05 Method and apparatus for controlling a traffic signal

Publications (2)

Publication Number Publication Date
SE9604055D0 SE9604055D0 (en) 1996-11-05
SE9604055L true SE9604055L (en) 1998-05-06

Family

ID=20404509

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9604055A SE9604055L (en) 1996-11-05 1996-11-05 Method and apparatus for controlling a traffic signal

Country Status (1)

Country Link
SE (1) SE9604055L (en)

Also Published As

Publication number Publication date
SE9604055D0 (en) 1996-11-05

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