EP0507624B1 - Dispositif de contrÔle de la circulation du trafic - Google Patents

Dispositif de contrÔle de la circulation du trafic Download PDF

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Publication number
EP0507624B1
EP0507624B1 EP19920302990 EP92302990A EP0507624B1 EP 0507624 B1 EP0507624 B1 EP 0507624B1 EP 19920302990 EP19920302990 EP 19920302990 EP 92302990 A EP92302990 A EP 92302990A EP 0507624 B1 EP0507624 B1 EP 0507624B1
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EP
European Patent Office
Prior art keywords
traffic flow
control unit
flow control
barrier member
unit according
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 - Lifetime
Application number
EP19920302990
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German (de)
English (en)
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EP0507624A1 (fr
Inventor
Michael Anthony Prosser
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.)
Individual
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Individual
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Filing date
Publication date
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Publication of EP0507624A1 publication Critical patent/EP0507624A1/fr
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Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/10—Vehicle barriers specially adapted for allowing passage in one direction only
    • E01F13/105—Vehicle barriers specially adapted for allowing passage in one direction only depressible by right-way traffic, e.g. pivotally; actuated by wrong-way traffic

Definitions

  • the invention relates to a traffic flow unit for installation at a road surface for controlling the flow of road traffic.
  • a traffic flow control unit incorporates a plate which is movable, normally by pivoting action, between a retracted position where it is flush with the road surface and a deployed position where it projects sufficiently from the surface to prevent flow of traffic.
  • a flow plate is used in a situation where traffic flow is always allowed in one direction and is always to be prevented in the opposite direction.
  • the flow plate can then be a simple pivoting member which retracts by pivoting when engaged by wheels of a road vehicle in one direction but incorporates a stop to prevent rotation in the reverse direction whereby it prevents traffic flow.
  • this prevention is not necessarily absolute but the plate should project sufficiently to act as a very strong deterrent and generally to inflict damage on a vehicle which does endeavour to pass in the reverse direction.
  • traffic flow control units incorporating flow plates One problem with traffic flow control units incorporating flow plates is that traffic can pass over them quickly in the direction in which traffic flow is permitted. This can result in very noisy operation and a high degree of wear and tear on the mechanism.
  • the invention relates particularly to a traffic control unit for installation at a road surface comprising: a fixed body which projects above the road surface such as to provide a speed control bump with a speed control entry ramp at its entry side; a barrier member pivotally mounted to the body, pivotal between a deployed position where it projects upward and acts as a barrier to prevent traffic flow and a retracted position where it allows traffic to pass, and biased towards its deployed position.
  • a unit of this kind is already known from DE-A-2 843 426.
  • An object of the invention is to provide an improved traffic flow control unit in which the disadvantages of the prior art are overcome.
  • a traffic flow control unit of the kind specified is characterised in that the barrier member when in its retracted position forms an exit ramp from the speed control bump.
  • This arrangement allows a good height of barrier to be presented to prevent traffic flow from the exit side whereas the height of the barrier above the speed bump as encountered by a vehicle from the entry side is much less and facilitates retraction of the barrier by engagement by a vehicle wheel.
  • the shape or inclination of the entry and exit ramps may be such that the entry ramp provides a harsher disturbance to vehicle suspension than is provided by the exit ramp.
  • the entry ramp has a convex contour and the exit ramp is a straight inclined ramp.
  • the height of the speed bump above the road surface should preferably be at least 60 mm and more typically is between 70 mm and 80 mm. This provides sufficient height for an effective speed bump.
  • the barrier member may be biased towards its deployed position, held against further movement in one direction by a stop and freely pivotable in the opposite direction against the bias by contact from a vehicle wheel. It may be biased by its own weight.
  • the barrier member may be wedge shaped such that in its deployed position it provides an inclined face from the entry side and a vertical or near vertical face from the exit side.
  • the main body 11 of a traffic flow control unit is a fabricated steel structure.
  • the structure incorporates a base plate 12, side plates 13 and a top plate 14.
  • a recess 15 below the level of the base plate 12 is defined by further vertical plates 16 and 17 and a horizontal plate 18.
  • a secondary base plate 19 continues the line of the base plate 12 on the opposite side of the recess 15.
  • the left hand section of the assembly as shown in Figure 2 is its entry side, in the form of a conventional speed bump, with the steel body 11 carrying a rubber or similar block 21 which acts as a ramp at the left hand side of the bump.
  • the entry side speed bump contour is convex, following normal practice, to provide a harsh disturbance to vehicle suspension.
  • each barrier member 23 as shown in Figure 1 is generally wedge shaped with a steep near vertical surface 26 presented to flow of traffic from the right and a less steep angled surface 27 presented to flow of traffic from the left.
  • the barrier member also incorporates a heavy lower section as shown which tends to cause it to pivot under its own weight into the deployed position shown for member 22 in Figure 1.
  • the lower part of the barrier member as shown is housed within the recess 15 below the level of the roadway.
  • the surface 26 incorporates red reflectors 28 to warn approaching traffic and may be painted in a prominent colour or otherwise have surface features to warn a vehicle driver.
  • a rubber buffer 29 on the vertical plate 17 acts to silence and cushion movement of the barrier member into the near vertical position.
  • the up-ramp as provided in a conventional speed bump and this naturally causes the driver to slow to a speed of the order of 8 Kph.
  • the wheels Once the wheels have ridden up onto the speed ramp, they engage the inclined surface of the barrier member 27. As they bear against it, they cause the barrier member to pivot as indicated by arrow 31 until the engaged barrier member reaches the generally horizontal retracted position shown for member 23 in Figure 2. In this position, the inclined surface 27 acts as an exit ramp with a straight inclined surface, allowing the vehicle to pass easily. After passage of a front wheel over a barrier member, the barrier member pivots up again to the near vertical position shown for plate 22.
  • Lines 30 in Figure 2 illustrate typical limits for excavation.
  • a projection 32 and a welded on angle section 33 help to anchor the unit firmly in position.
  • a drainage connection 34 leads from the recess 15 to a drainage channel 35 so that rain water can be drained away from the recess.
  • the excavation may be filled in two stages with wire ties connecting the two stages together.
  • a series of traffic flow control units are arranged side by side across all or most of the width of a roadway over which it is desired to control passage of traffic.
  • Two such units are shown side by side in Figure 1 which also shows a vehicle traversing the row of units from left to right and in such a position where it has already engaged the inclined surface of a barrier member in its deployed position and swung it over to its retracted position where it acts as the exit ramp from the speed bump.
  • each barrier member In most applications a simple pivotal action is all that is required of each barrier member. However, if traffic flow from exit to entry is to be allowed on some ' occasions, means may be provided for locking the barrier members in the retracted position. The barrier members may then be swung over manually and locked in position. Alternatively, means could be provided for powering the barrier members down to the retracted position. The unit could then be controlled by a security guard. For example it may be set to allow flow of traffic from left to right without any controls while passing from right to left is under the control of security personnel.
  • a deterrent is provided against fast driving over the control unit which would generate excessive noise and wear. Also, it allows a relatively high barrier member to prevent traffic flow in one direction whilst there is only a low projection for engagement by the vehicle for its passage in the opposite direction.
  • the overall height of the barrier member 22 above the road surface should be limited to about 100 mm to ensure that it does not damage a vehicle as the front wheels run down the ramp so that the vehicle straddles the unit. Where low ground clearance cars cross the unit regularly it could be useful to reduce the height to 85 mm.
  • the speed bump itself should have a height of at least 60 mm, otherwise it would not be very effective as a speed bump and preferably its height should be 70 to 80 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Vehicle Body Suspensions (AREA)

Claims (9)

  1. Unité de contrôle du flux de circulation destinée à être installée sur une surface de route, comprenant : un corps fixe (11) qui fait saillie par-dessus la surface de la route de manière à fournir une bosse de contrôle de la vitesse munie d'une rampe d'entrée de contrôle de la vitesse (21) du côté de son entrée ; un élément de barrière (22 ou 23) monté de manière pivotante (en 24) sur le corps, pouvant pivoter entre une position déployée (22-fig 2.) où il fait saillie vers le haut et sert de barrière destinée à empêcher le flux de circulation et une position rétractée (23-fig.2) où il permet à la circulation de passer, et sollicité vers sa position déployée ; caractérisée en ce que l'élément de barrière lorsqu'il est en position rétractée (23-fig.2) forme une rampe de sortie hors de la bosse de contrôle de vitesse ou ralentisseur.
  2. Unité de contrôle du flux de circulation selon la revendication 1, caractérisée en ce que la forme ou l'inclinaison des rampes d'entrée et de sortie est telle que la rampe d'entrée (21) fournit une perturbation plus importante à la suspension du véhicule que celle fournie par la rampe de sortie (27).
  3. Unité de contrôle du flux de circulation selon la revendication 2, caractérisée en ce que la rampe d'entrée (21) présente un profil convexe et la rampe de sortie (27) est une rampe inclinée droite.
  4. Unité de contrôle du flux de circulation selon l'une des revendications précédentes, caractérisée en ce que la hauteur de la bosse ou ralentisseur au-dessus de la surface de la route est d'au moins 60 mm.
  5. Unité de contrôle du flux de circulation selon l'une des revendications précédentes, caractérisée en ce que l'élément de barrière est sollicité vers sa position déployée, est retenu contre tout mouvement dans une direction par un dispositif d'arrêt (17) et peut librement pivoter dans la direction opposée contre l'inclinaison au contact d'une roue de véhicule.
  6. Unité de contrôle du flux de circulation selon la revendication 5, caractérisée en ce que l'élément de barrière est sollicité vers sa position déployée par son propre poids.
  7. Unité de contrôle du flux de circulation selon l'une des revendications précédentes, caractérisée en ce que l'élément de barrière a la forme d'une cale (26-27) de telle sorte que, en position déployée, il fournit une face inclinée (27) depuis le côté d'entrée et une face verticale ou quasiment verticale (26) depuis le côté de sortie.
  8. Unité de contrôle du flux de circulation selon l'une des revendications précédentes, caractérisée par d'autres moyens destinés à verrouiller l'élément de barrière dans sa position rétractée.
  9. Unité de contrôle du flux de circulation selon l'une des revendications précédentes, caractérisée en ce que le corps incorpore un évidement (15) destiné à être installé sous le niveau de la surface de la route afin de permettre à une partie de l'élément de barrière (22) de reposer sous le niveau de la surface de la route lorsque l'élément de barrière est dans sa position déployée.
EP19920302990 1991-04-04 1992-04-03 Dispositif de contrÔle de la circulation du trafic Expired - Lifetime EP0507624B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9107049 1991-04-04
GB919107049A GB9107049D0 (en) 1991-04-04 1991-04-04 Traffic flow plate assembly

Publications (2)

Publication Number Publication Date
EP0507624A1 EP0507624A1 (fr) 1992-10-07
EP0507624B1 true EP0507624B1 (fr) 1996-12-04

Family

ID=10692622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920302990 Expired - Lifetime EP0507624B1 (fr) 1991-04-04 1992-04-03 Dispositif de contrÔle de la circulation du trafic

Country Status (3)

Country Link
EP (1) EP0507624B1 (fr)
DE (1) DE69215570D1 (fr)
GB (1) GB9107049D0 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7441982B1 (en) * 2005-02-14 2008-10-28 Sabah Naser Al-Sabah Portable traffic control barrier
ES2279670B1 (es) * 2005-02-28 2008-07-16 Miguel Angel Ferrer Chavarria Sistema mecanico de aviso a conductores de vehiculos que se incorporan a una autovia en sentido contrario.
CN102839613A (zh) * 2011-06-26 2012-12-26 朱明龙 道路单向减速构件
CN102839614A (zh) * 2011-06-26 2012-12-26 朱明龙 防逆行翻板式减速构件
CN104988856A (zh) * 2015-06-24 2015-10-21 广西大学 一种单向减速板
CN106320205A (zh) * 2015-06-29 2017-01-11 潘素云 车辆减速带
US20200181859A1 (en) * 2018-12-11 2020-06-11 Roadshark International Inc. Counterbalanced Inground Traffic Control Device
CN109881596A (zh) * 2019-03-29 2019-06-14 西南科技大学 一种道路复合单向减速系统
CN112627082A (zh) * 2020-11-23 2021-04-09 易保冲 一种单向逆止路障

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2843426A1 (de) * 1978-10-05 1980-04-24 Juergen Wirnsperger Fahrtrichtungsabhaengige strassensperre
DE8605666U1 (de) * 1986-03-01 1986-04-10 Malkmus-Doernemann, Geb. Doernemann, Carola, Dr., 3320 Salzgitter Wege- oder Durchfahrtsperre für Fahrzeuge, insbesondere zum Sperren von Ein- und Ausfahrten oder Engestellen
FR2607162A1 (fr) * 1986-11-24 1988-05-27 Krel Serge Ralentisseur de type herse retractable
FR2610958B3 (fr) * 1987-02-18 1989-08-18 Valentin Luc Elements modulaires et complementaires en beton ou autres materiaux a usage de barriere de protection de parking et de ralentisseur de vehicules automobiles
GB2208884B (en) * 1987-10-05 1992-01-15 Michael David Silk Speed reducing hump drainage channel
FR2622614B3 (fr) * 1987-11-04 1989-10-20 Masair Obstacle mobile pour circulation routiere

Also Published As

Publication number Publication date
EP0507624A1 (fr) 1992-10-07
DE69215570D1 (de) 1997-01-16
GB9107049D0 (en) 1991-05-22

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