EP0148284B1 - Taxiway safety device for airports - Google Patents

Taxiway safety device for airports Download PDF

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Publication number
EP0148284B1
EP0148284B1 EP83112851A EP83112851A EP0148284B1 EP 0148284 B1 EP0148284 B1 EP 0148284B1 EP 83112851 A EP83112851 A EP 83112851A EP 83112851 A EP83112851 A EP 83112851A EP 0148284 B1 EP0148284 B1 EP 0148284B1
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EP
European Patent Office
Prior art keywords
taxiway
stop bar
aircraft
lighting
safety system
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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
EP83112851A
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German (de)
French (fr)
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EP0148284A1 (en
Inventor
Wolfgang Dipl.-Ing. Wohlrabe
Alois Lüftner
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Signalbau Huber GmbH
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Signalbau Huber GmbH
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 Signalbau Huber GmbH filed Critical Signalbau Huber GmbH
Priority to AT83112851T priority Critical patent/ATE35743T1/en
Priority to DE8383112851T priority patent/DE3377391D1/en
Priority to EP83112851A priority patent/EP0148284B1/en
Priority to PT79707A priority patent/PT79707B/en
Priority to ES538900A priority patent/ES8600719A1/en
Publication of EP0148284A1 publication Critical patent/EP0148284A1/en
Application granted granted Critical
Publication of EP0148284B1 publication Critical patent/EP0148284B1/en
Expired legal-status Critical Current

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0017—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information
    • G08G5/0026—Arrangements for implementing traffic-related aircraft activities, e.g. arrangements for generating, displaying, acquiring or managing traffic information located on the ground
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G5/00—Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/06—Traffic control systems for aircraft, e.g. air-traffic control [ATC] for control when on the ground
    • G08G5/065—Navigation or guidance aids, e.g. for taxiing or rolling

Definitions

  • the invention relates to a taxiway safety system for airports, with a taxiway centerline lighting system and a taxi stop lighting system formed by a stop bar that can be switched on and off transversely to the taxiway direction, in particular before the taxiway ends at a runway , as well as with vehicle detectors arranged adjacent to the stop bar.
  • Taxi stops at airports for example in front of the intersection of taxiways in a runway and in front of crossing taxiways, are usually marked by groups of lights. Such lights for roll stops can easily be overlooked, especially in very bad weather conditions. With such bad weather conditions, there are in many cases difficulties in visually monitoring the traffic routes at airports, so that an overlook of a taxi stop lights can lead to serious accidents, since such a roll over of the taxi stop lights cannot be detected.
  • a taxiway security system of the type mentioned is known (DE-AS 2025126), with the aid of which it is possible to direct the landing traffic leaving a runway to the parking space and from the parking space to the queue in front of a taxi stop.
  • the traffic is steered with the aid of a computer system, into which the start and destination positions are entered and which automatically determines the aircraft's path from a starting position to an end position and controls the corresponding display devices and stop bars, which are arranged at nodes on the runways.
  • Vehicle detectors arranged behind the stop bars deliver information about the respective position of an aircraft to the computer system. After the aircraft have been introduced into the departure queue with the aid of this system, the first aircraft is given taxi clearance from the control tower to the take-off position on the runway.
  • the invention has for its object to provide a taxiway safety system of the type mentioned, which allows an improvement in security against unwanted rollover of the roll stop and allows perfect control of traffic between the roll stop and the starting position on the runway.
  • the design of the taxiway safety system according to the invention makes it possible to basically block the taxiway at the taxi stop, whereby after the aircraft has been released from the taxi stop to the starting position on the runway, the stop bar is briefly switched off and a subsequent segment of the taxiway center line lighting is turned on, which leads the aircraft to the start position. As soon as the released aircraft has crossed the stop bar, it is switched on again, so that subsequent aircraft are given a clear stop signal.
  • This stop bar can only be switched off again when the first aircraft has left the take-off position on the runway, so that there is security against incorrect operation.
  • the position of an aircraft located in front of the stop bar can still be detected and when the stop bar is rolled over, an alarm can be triggered by the vehicle detector arranged behind the stop bar.
  • the safety of the movement of the aircraft from the queue in front of the taxi stop to the starting position is significantly improved and the automatic sequence control largely relieves the crew of the control tower, with incorrect operations being ruled out.
  • the separately activatable segment of the center line lighting gives the aircraft operator an optical display which is important, particularly in poor visibility, for the way to the takeoff position.
  • the aircraft operator is still given clear instructions and this combination can also be used in the course of the taxiways, to give the aircraft operator a clear indication of the required course of his taxiing movement and possible stopping point.
  • the invention is based on a illustrated in the drawing embodiment explained in more detail.
  • the drawing shows a simplified picture of a taxiway 6 opening into a runway 7 with an embodiment of the taxiway security system.
  • the embodiment of the taxiway safety system shown in the drawing serves to secure the confluence of a taxiway 6 and a runway 7, a stop bar 4 being arranged in front of the confluence of the taxiway 6 and the runway 7 and consisting of a number of red underground lights arranged transversely to the taxiway direction.
  • Vehicle detectors 1 and 2 are arranged in front of and behind the stop bar 4, each consisting of groups of individual detectors 1a to 1d or 2a to 2d. Behind the stop bar 4 there is also a segment 5 of the taxiway center line lighting which can be switched on and off separately, this segment being able to be formed by green underfloor lights which lead to the starting point 8.
  • a further vehicle detector 3 consisting of individual detectors 3a to 3c is preferably arranged behind the starting point 8. Due to their arrangement shown in the drawing, the vehicle detectors 1 to 3 enable the distinction between aircraft and motor vehicles that are moving on the taxiway and the runway for maintenance and control purposes.
  • a sequential circuit is preferably provided, which causes the stop bar 4 and the segment 5 to be switched on and off automatically in succession.
  • the operation of the taxiway security system is as follows: An aircraft that has received taxi clearance moves on the assigned taxiway to a position in front of the stop bar 4, the presence of the aircraft being detected by the vehicle detector 1. At this taxi stop, the aircraft is waiting for take-off approval, which is issued by the air traffic controller. When the take-off permission is given, the air traffic controller switches off the stop bar 4, preferably the sequence control automatically switching on the segment 5 of the taxiway center line lighting. If the aircraft has passed the vehicle detector 2 arranged behind the stop bar 4, the sequential circuit immediately switches the stop bar on again, while the segment 5 remains switched on. This segment is only switched off when the aircraft has left the starting point 8 and has passed the vehicle detector 3 behind the starting point 8.
  • the stop bar can be switched off again in order to give a taxi to a following aircraft.
  • the individual operating states and messages of the vehicle detectors are preferably shown on a control display for the air traffic controller, so that a rollover of the stop bar 4 leads directly to an alarm being triggered without prior approval.
  • the vehicle detectors can preferably be formed by induction loops, although other types of detectors which enable vehicle classification can of course also be used.

Abstract

1. Taxiway safety system for aerodromes, with taxiway centreline lighting and holding-point lighting that is formed by a stop bar (4) which is arranged transversely to the taxiway direction, and which can be switched on and off, in particular before the taxiway/runway junction, and with vehicle detectors (1, 2) that are sited adjacent to the stop bar (4), characterized in that a segment (5) of the taxiway centreline lighting is sited after the stop bar (4), in the taxiway direction, this being a segment which can be switched on and off separately, in that a sequential switching circuit is provided, which switches off the stop bar (4) and switches on the segment (5) of the taxiway centreline lighting once a clearance has been given, by manual means, to taxi into the takeoff start position, and in that once an aircraft has been detected by a vehicle detector (2) that is sited after the stop bar (4), the sequential switching circuit switches the stop bar (4) on again.

Description

Die Erfindung bezieht sich auf eine Rollweg-Sicherungsanlage für Flughäfen, mit einer Rollweg-Mittellinien-Befeuerung und einer durch einen ein- und ausschaltbaren Stoppbalken quer zur Rollweg-Richtung gebildeten Rollhaltepunkt-Befeuerung, insbesondere vor der Einmündung des Rollwegs in eine Start- und Landebahn, sowie mit benachbart zu dem Stoppbalken angeordneten Fahrzeugdetektoren.The invention relates to a taxiway safety system for airports, with a taxiway centerline lighting system and a taxi stop lighting system formed by a stop bar that can be switched on and off transversely to the taxiway direction, in particular before the taxiway ends at a runway , as well as with vehicle detectors arranged adjacent to the stop bar.

Rollhaltepunkte auf Flughäfen, beispielsweise vor der Einmündung von Rollwegen in eine Start-und Landebahn sowie vor sich kreuzenden Rollwegen, werden normalerweise durch Gruppen von Befeuerungen markiert. Derartige Befeuerungen für Rollhaltepunkte können jedoch insbesondere bei sehr schlechten Wetterbedingungen sehr leicht übersehen werden. Bei derartigen schlechten Wetterbedingungen ergeben sich in vielen Fällen auch Schwierigkeiten bei der visuellen Überwachung der Verkehrswege auf Flughäfen, so dass ein Übersehen einer Rollhaltepunkt-Befeuerung zu schweren Unfällen führen kann, da ein derartiges Überrollen der Rollhaltepunkt-Befeuerung nicht erkannt werden kann.Taxi stops at airports, for example in front of the intersection of taxiways in a runway and in front of crossing taxiways, are usually marked by groups of lights. Such lights for roll stops can easily be overlooked, especially in very bad weather conditions. With such bad weather conditions, there are in many cases difficulties in visually monitoring the traffic routes at airports, so that an overlook of a taxi stop lights can lead to serious accidents, since such a roll over of the taxi stop lights cannot be detected.

Mit der Einführung des Allwetter-Flugbetriebs auf Verkehrsflughäfen, die für Starts und Landungen nach der Kategorie II oder 111 zugelassen sind, ist es erforderlich, entsprechende Massnahmen vorzusehen, die ein ungewolltes Überrollen eines Rollhaltepunktes sicher ausschliessen.With the introduction of all-weather flight operations at commercial airports that are approved for take-offs and landings in accordance with Category II or 111, it is necessary to take appropriate measures that reliably prevent an unintentional rollover of a taxi stop.

Es ist eine Rollweg-Sicherungsanlage der eingangs genannten Art bekannt (DE-AS 2025126), mit deren Hilfe eine Lenkung des eine Start- und Landebahn verlassenden landenden Verkehrs zum Abstellplatz sowie vom Abstellplatz zur Warteschlange vor einem Rollhaltepunkt möglich ist. Hierbei erfolgt die Lenkung des Verkehrs mit Hilfe einer Rechenanlage, in die die Start- und Zielpositionen eingegeben werden und die selbsttätig den Weg des Luftfahrzeuges von einer Ausgangsposition zu einer Endposition ermittelt und entsprechende Anzeigeeinrichtungen und Stoppbalken steuert, die an Knotenpunkten der Rollbahnen angeordnet sind. Hinter den Stoppbalken angeordnete Fahrzeugdetektoren liefern an die Rechenanlage eine Information über die jeweilige Position eines Luftfahrzeuges. Nachdem die Luftfahrzeuge mit Hilfe dieses Systems in die Abflugwarteschlange eingeleitet wurden, wird dem jeweils ersten Luftfahrzeug vom Kontrollturm eine Rollfreigabe zur Startposition auf der Start- und Landebahn gegeben. Bei ungünstigen Sichtverhältnissen ist es jedoch für die Besatzung des Kontrollturms nicht möglich, das Verhalten des Luftfahrzeuges nach der Rollfreigabe in die Startposition zu beobachten und insbesondere ist es auch nicht möglich, festzustellen, wann das Luftfahrzeug den Startvorgang begonnen hat. Weiterhin besteht die Gefahr, dass nachfolgende Luftfahrzeuge ohne Freigabe den Rollhaltepunkt überrollen und sich in Richtung auf die Startbahn bewegen, ohne dass dies von der Besatzung des Kontrollturms bemerkt wird.A taxiway security system of the type mentioned is known (DE-AS 2025126), with the aid of which it is possible to direct the landing traffic leaving a runway to the parking space and from the parking space to the queue in front of a taxi stop. The traffic is steered with the aid of a computer system, into which the start and destination positions are entered and which automatically determines the aircraft's path from a starting position to an end position and controls the corresponding display devices and stop bars, which are arranged at nodes on the runways. Vehicle detectors arranged behind the stop bars deliver information about the respective position of an aircraft to the computer system. After the aircraft have been introduced into the departure queue with the aid of this system, the first aircraft is given taxi clearance from the control tower to the take-off position on the runway. In unfavorable visibility conditions, however, it is not possible for the crew of the control tower to observe the behavior of the aircraft after the taxi has been released for take-off and, in particular, it is also not possible to determine when the aircraft started the take-off process. There is also the danger that subsequent aircraft roll over the roll stop without release and move towards the runway without the crew of the control tower noticing.

Der Erfindung liegt die Aufgabe zugrunde, eine Rollweg-Sicherungsanlage der eingangs genannten Art zu schaffen, die eine Verbesserung der Sicherheit gegen ein unerwünschtes Überrollen des Rollhaltepunktes ermöglicht und eine einwandfreie Steuerung des Verkehrs zwischen dem Rollhaltepunkt und der Startposition auf der Start- und Landebahn ermöglicht.The invention has for its object to provide a taxiway safety system of the type mentioned, which allows an improvement in security against unwanted rollover of the roll stop and allows perfect control of traffic between the roll stop and the starting position on the runway.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of patent claim 1.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous refinements and developments of the invention result from the subclaims.

Durch die erfindungsgemässe Ausgestaltung der Rollweg-Sicherungsanlage ist es möglich, den Rollweg am Rollhaltepunkt grundsätzlich zu sperren, wobei nach einer Freigabe des Luftfahrzeuges vom Rollhaltepunkt zur Startposition auf der Start- und Landebahn der Stoppbalken kurzzeitig ausgeschaltet und ein nachfolgendes Segment der Rollweg-Mittellinien-Befeuerung eingeschaltet wird, das das Luftfahrzeug in die Startposition führt. Sobald das freigegebene Luftfahrzeug den Stoppbalken überquert hat, wird dieser wiederum eingeschaltet, so dass nachfolgenden Luftfahrzeugen ein deutliches Stoppsignal geliefert wird. Dieser Stoppbalken kann erst dann wieder ausgeschaltet werden, wenn das erste Luftfahrzeug die Startposition auf der Start- und Landebahn verlassen hat, so dass eine Sicherheit gegen Fehlbedienung gegeben ist.The design of the taxiway safety system according to the invention makes it possible to basically block the taxiway at the taxi stop, whereby after the aircraft has been released from the taxi stop to the starting position on the runway, the stop bar is briefly switched off and a subsequent segment of the taxiway center line lighting is turned on, which leads the aircraft to the start position. As soon as the released aircraft has crossed the stop bar, it is switched on again, so that subsequent aircraft are given a clear stop signal. This stop bar can only be switched off again when the first aircraft has left the take-off position on the runway, so that there is security against incorrect operation.

Durch die Verwendung von Fahrzeugdetektoren vor und hinter dem Stoppbalken kann weiterhin die Position eines vor dem Stoppbalken befindlichen Luftfahrzeuges erkannt werden und bei Überrollen des eingeschalteten Stoppbalkens kann durch den hinter dem Stoppbalken angeordneten Fahrzeugdetektor ein Alarm ausgelöst werden. Damit wird erfindungsgemäss die Sicherheit der Bewegung der Luftfahrzeuge aus der Warteschlange vor dem Rollhaltepunkt bis zur Startposition wesentlich verbessert und die automatische Folgesteuerung entlastet die Besatzung des Kontrollturms weitgehend, wobei Fehlbedienungen ausgeschlossen werden können. Weiterhin wird dem Luftfahrzeugführer durch das getrennt einschaltbare Segment der Mittellinien-Befeuerung eine insbesondere unter schlechten Sichtverhältnissen wichtige optische Anzeige für den Weg zur Startposition gegeben.By using vehicle detectors in front of and behind the stop bar, the position of an aircraft located in front of the stop bar can still be detected and when the stop bar is rolled over, an alarm can be triggered by the vehicle detector arranged behind the stop bar. Thus, according to the invention, the safety of the movement of the aircraft from the queue in front of the taxi stop to the starting position is significantly improved and the automatic sequence control largely relieves the crew of the control tower, with incorrect operations being ruled out. Furthermore, the separately activatable segment of the center line lighting gives the aircraft operator an optical display which is important, particularly in poor visibility, for the way to the takeoff position.

Durch die Kombination des aus- und einschaltbaren Stoppbalkens mit dem getrennt ein- und ausschaltbaren Segment der Mittellinien-Befeuerung, die vorzugsweise aus grünen Unterflurfeuern gebildet sein kann, werden weiterhin dem Luftfahrzeugführer klare Anweisungen gegeben und diese Kombination kann auch im Verlauf der Rollwege verwendet werden, um dem Luftfahrzeugführer eine eindeutige Anzeige für den erforderlichen Verlauf seiner Rollbewegung und mögliche Haltepunkt zu geben.By combining the stop bar, which can be switched on and off, with the segment of the center line lighting which can be switched on and off separately, which can preferably be formed from green underfloor lights, the aircraft operator is still given clear instructions and this combination can also be used in the course of the taxiways, to give the aircraft operator a clear indication of the required course of his taxiing movement and possible stopping point.

Die Erfindung wird im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispiels noch näher erläutert.The invention is based on a illustrated in the drawing embodiment explained in more detail.

Die Zeichnung zeigt ein vereinfachtes Bild eines in eine Start- und Landebahn 7 einmündenden Rollweges 6 mit einer Ausführungsform der Rollweg-Sicherungsanlage.The drawing shows a simplified picture of a taxiway 6 opening into a runway 7 with an embodiment of the taxiway security system.

Die in der Zeichnung dargestellte Ausführungsform der Rollweg-Sicherungsanlage dient zur Sicherung der Einmündung eines Rollwegs 6 in eine Start- und Landebahn 7, wobei vor der Einmündung des Rollwegs 6 in die Start- und Landebahn 7 ein Stoppbalken 4 angeordnet ist, der aus einer Anzahl von quer zur Rollweg-Richtung angeordneten roten Unterflurfeuern besteht. Vor bzw. hinter dem Stoppbalken 4 sind Fahrzeugdetektoren 1 bzw. 2 angeordnet, die jeweils aus Gruppen von Einzeldetektoren 1a bis 1 d bzw. 2a bis 2d bestehen. Hinter dem Stoppbalken 4 ist weiterhin ein getrennt ein- und ausschaltbares Segment 5 der Rollweg-Mittellinien-Befeuerung angeordnet, wobei dieses Segment durch grüne Unterflurfeuer gebildet sein kann, die bis zum Startpunkt 8 führen. Hinter dem Startpunkt 8 ist vorzugsweise ein weiterer, aus Einzeldetektoren 3a bis 3c bestehenden, Fahrzeugdetektor 3 angeordnet. Die Fahrzeugdetektoren 1 bis 3 ermöglichen aufgrund ihrer in der Zeichnung dargestellten Anordnung die Unterscheidung zwischen Luftfahrzeugen und Kraftfahrzeugen, die sich zu Wartungs- und Kontrollzwecken auf dem Rollweg und der Start- und Landebahn bewegen.The embodiment of the taxiway safety system shown in the drawing serves to secure the confluence of a taxiway 6 and a runway 7, a stop bar 4 being arranged in front of the confluence of the taxiway 6 and the runway 7 and consisting of a number of red underground lights arranged transversely to the taxiway direction. Vehicle detectors 1 and 2 are arranged in front of and behind the stop bar 4, each consisting of groups of individual detectors 1a to 1d or 2a to 2d. Behind the stop bar 4 there is also a segment 5 of the taxiway center line lighting which can be switched on and off separately, this segment being able to be formed by green underfloor lights which lead to the starting point 8. A further vehicle detector 3 consisting of individual detectors 3a to 3c is preferably arranged behind the starting point 8. Due to their arrangement shown in the drawing, the vehicle detectors 1 to 3 enable the distinction between aircraft and motor vehicles that are moving on the taxiway and the runway for maintenance and control purposes.

Zur Steuerung des Stoppbalkens 4 und des Segmentes 5 der Rollweg-Mittellinien-Befeuerung ist vorzugsweise eine Folgeschaltung vorgesehen, die eine automatische aufeinanderfolgende Ein- und Ausschaltung des Stoppbalkens 4 und des Segmentes 5 bewirkt.To control the stop bar 4 and the segment 5 of the taxiway centerline lighting, a sequential circuit is preferably provided, which causes the stop bar 4 and the segment 5 to be switched on and off automatically in succession.

Die Betriebsweise der Rollweg-Sicherungsanlage ist wie folgt: Ein Luftfahrzeug, das eine Rollfreigabe erhalten hat, bewegt sich auf dem zugewiesenen Rollweg bis zu einer Position vor dem Stoppbalken 4, wobei die Anwesenheit des Luftfahrzeuges durch den Fahrzeugdetektor 1 erkannt wird. An diesem Rollhaltepunkt wartet das Luftfahrzeug auf die Startfreigabe, die vom Flugverkehrslotsen erteilt wird. Bei Erteilung der Startfreigabe schaltet der Flugverkehrslotse den Stoppbalken 4 aus, wobei vorzugsweise die Folgesteuerung automatisch das Segment 5 der Rollweg-Mittellinien-Befeuerung einschaltet. Wenn das Luftfahrzeug den hinter dem Stoppbalken 4 angeordneten Fahrzeugdetektor 2 passiert hat, schaltet die Folgeschaltung unmittelbar den Stoppbalken wieder ein, während das Segment 5 eingeschaltet bleibt. Dieses Segment wird erst dann ausgeschaltet, wenn das Luftfahrzeug den Startpunkt 8 verlassen hat und den Fahrzeugdetektor 3 hinter dem Startpunkt 8 passiert hat.The operation of the taxiway security system is as follows: An aircraft that has received taxi clearance moves on the assigned taxiway to a position in front of the stop bar 4, the presence of the aircraft being detected by the vehicle detector 1. At this taxi stop, the aircraft is waiting for take-off approval, which is issued by the air traffic controller. When the take-off permission is given, the air traffic controller switches off the stop bar 4, preferably the sequence control automatically switching on the segment 5 of the taxiway center line lighting. If the aircraft has passed the vehicle detector 2 arranged behind the stop bar 4, the sequential circuit immediately switches the stop bar on again, while the segment 5 remains switched on. This segment is only switched off when the aircraft has left the starting point 8 and has passed the vehicle detector 3 behind the starting point 8.

Erst zu diesem Zeitpunkt, d.h. nachdem das Luftfahrzeug den Fahrzeugdetektor 3 hinter dem Startpunkt 8 passiert hat, ist ein erneutes Abschalten des Stoppbalkens möglich, um einem nachfolgenden Luftfahrzeug die Rollfreigabe zu erteilen.Only at this point, i.e. after the aircraft has passed the vehicle detector 3 behind the starting point 8, the stop bar can be switched off again in order to give a taxi to a following aircraft.

Die einzelnen Betriebszustände und Meldungen der Fahrzeugdetektoren werden vorzugsweise auf einer Kontrollanzeige für den Flugverkehrslotsen dargestellt, so dass ein Überrollen des Stoppbalkens 4 ohne vorhergehende Freigabe unmittelbar zur Auslösung eines Alarms führt.The individual operating states and messages of the vehicle detectors are preferably shown on a control display for the air traffic controller, so that a rollover of the stop bar 4 leads directly to an alarm being triggered without prior approval.

Die Fahrzeugdetektoren können vorzugsweise durch Induktionsschleifen gebildet sein, wobei jedoch selbstverständlich auch andere Arten von Detektoren, die eine Fahrzeugklassifizierung ermöglichen, Verwendung finden können.The vehicle detectors can preferably be formed by induction loops, although other types of detectors which enable vehicle classification can of course also be used.

Claims (7)

1. Taxiway safety system for aerodromes, with taxiway centreline lighting and holding-point lighting that is formed by a stop bar (4) which is arranged transversely to the taxiway direction, and which can be switched on and off, in particular before the taxiway/runway junction, and with vehicle detectors (1, 2) that are sited adjacent to the stop bar (4), characterized in that a segment (5) of the taxiway centreline lighting is sited after the stop bar (4), in the taxiway direction, this being a segment which can be switched on and off separately, in that a sequential switching circuit is provided, which switches off the stop bar (4) and switches on the segment (5) of the taxiway centreline lighting once a clearance has been giv- ben, by manual means, to taxi into the takeoff start position, and in that once an aircraft has been detected by a vehicle detector (2) that is sited after the stop bar (4), the sequential switching circuit switches the stop bar (4) on again.
2. Taxiway safety system according to Claim 1, characterized in that a further vehicle detector (3) is sited down-runway of the junction of the taxiway (6) with the runway (7), and in that once an aircraft has been detected by this detector (3), the sequential switching circuit switches off the segment (5) of the taxiway centreline lighting.
3. Taxiway safety system according to Claim 1 or 2, characterized in that once a first aircraft has - been given clearance to taxi and, in association with this clearance, the stop bar (4) has been switched off, and on again, the sequential switching circuit prevents the stop bar (4) from being switched off again until the first aircraft has passed the detector (3) sited down-runway of the junction of the taxiway (6) with the runway (7).
4. Taxiway safety system according to any one of the preceding Claims, characterized in that the vehicle detectors (1,2,3) are formed by groups of individual detectors (1a to 1d, 2a to 2d, 3a to 3c).
5. Taxiway safety system according to any one of the preceding Claims, characterized in that the vehicle detectors (1, 2, 3) make it possible to determine both the class of a vehicle that passes them, and its direction of movement.
6. Taxiway safety system according to Claim 4 or 5, characterized in that the individual detectors (1 a to 1 d, 2a to 2d, 3a to 3c) are formed by induction loops.
7. Taxiway safety system according to any one of the preceding Claims, characterized in that the operating states of the sequential switching circuit are displayed, with the output signals from the detectors (1, 2, 3), on a display panel in a control tower.
EP83112851A 1983-12-20 1983-12-20 Taxiway safety device for airports Expired EP0148284B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT83112851T ATE35743T1 (en) 1983-12-20 1983-12-20 RUNWAY SAFETY SYSTEM FOR AIRPORTS.
DE8383112851T DE3377391D1 (en) 1983-12-20 1983-12-20 Taxiway safety device for airports
EP83112851A EP0148284B1 (en) 1983-12-20 1983-12-20 Taxiway safety device for airports
PT79707A PT79707B (en) 1983-12-20 1984-12-19 ROLLWEG FUSE SYSTEM FOR AIRPORT PILLAR
ES538900A ES8600719A1 (en) 1983-12-20 1984-12-20 Taxiway safety device for airports.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83112851A EP0148284B1 (en) 1983-12-20 1983-12-20 Taxiway safety device for airports

Publications (2)

Publication Number Publication Date
EP0148284A1 EP0148284A1 (en) 1985-07-17
EP0148284B1 true EP0148284B1 (en) 1988-07-13

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EP83112851A Expired EP0148284B1 (en) 1983-12-20 1983-12-20 Taxiway safety device for airports

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EP (1) EP0148284B1 (en)
AT (1) ATE35743T1 (en)
DE (1) DE3377391D1 (en)
ES (1) ES8600719A1 (en)
PT (1) PT79707B (en)

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JPH05185996A (en) * 1992-01-10 1993-07-27 Toshiba Corp Position sensor of aircraft
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ATE35743T1 (en) 1988-07-15
DE3377391D1 (en) 1988-08-18
ES538900A0 (en) 1985-11-01
PT79707A (en) 1985-01-01
PT79707B (en) 1988-05-26
EP0148284A1 (en) 1985-07-17
ES8600719A1 (en) 1985-11-01

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