EP0593915B1 - Procédé et dispositif d'éclairage de la zone d'entrée d'un tunnel, en particulier d'un tunnel routier ou autoroutier - Google Patents

Procédé et dispositif d'éclairage de la zone d'entrée d'un tunnel, en particulier d'un tunnel routier ou autoroutier Download PDF

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Publication number
EP0593915B1
EP0593915B1 EP93115144A EP93115144A EP0593915B1 EP 0593915 B1 EP0593915 B1 EP 0593915B1 EP 93115144 A EP93115144 A EP 93115144A EP 93115144 A EP93115144 A EP 93115144A EP 0593915 B1 EP0593915 B1 EP 0593915B1
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EP
European Patent Office
Prior art keywords
tunnel
entrance
vehicles
tunnels
external light
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
EP93115144A
Other languages
German (de)
English (en)
Other versions
EP0593915A1 (fr
Inventor
Emilio Barlocco
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.)
DIACON Srl
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DIACON Srl
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Filing date
Publication date
Application filed by DIACON Srl filed Critical DIACON Srl
Publication of EP0593915A1 publication Critical patent/EP0593915A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S11/00—Non-electric lighting devices or systems using daylight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/101—Outdoor lighting of tunnels or the like, e.g. under bridges

Definitions

  • This invention concerns a method of illuminating the entrance portions of tunnels in highways and motorways, in which a portion at the entrance of the tunnel is illuminated with reflected external light over a length that is sufficient for the driver's eyes to become accomodated to the conditions of a lesser degree of light in a tunnel at a predetermined maximum running speed of vehicles, according to the preamble of claim 1.
  • a method of this kind is known from the document DE-A-3408649. According to this document, the external light is allowed to enter the tunnel directly through openings provided in the tunnel's ceiling.
  • Document DE-A-2334951 discloses a method of illuminating the interior of a tunnel with external light which enters the tunnel on both sides by passing through inclined wells and being reflected by suitable mirrors.
  • the object of the invention is to provide a method as described in the preamble of claim 1 and which can be easily carried out and avoids the dazzlement of the driver's eyes.
  • the method according to the invention is characterized in that the external light is reflected into the interior of the tunnel through the tunnel's entrance in the same sense as the vehicles entering the tunnel, and is directed downwardly to the roadway at the internal length which is consecutive to the entrance of the tunnel.
  • the invention also concerns an arrangement for carrying out the method according to claim 1.
  • This arrangement corresponds to the one known from the document DE-A-2334951 and comprises the features that the reflecting element is a panel supported at a sufficiently high level over the roadway by a bridge framework and provided with a curved, particularly concave, reflecting surface, which is formed by mirror elements and is turned toward the entrance of the tunnel in the running direction of the vehicles.
  • the use of the method and the device according to the invention has the advantage that the external reflected light which enters the tunnel through the tunnel's entrance and is turned in the sense of the vehicle transit, strikes upon the vehicles from behind so that any risk of the drivers' eyes to be dazzled, is avoided.
  • the size of a reflecting element can be suitably determined so as to provide such an illumination in a tunnel that is sufficient for eliminating the sudden falling of light in the tunnel entrance and for preventing the vehicles transiting through the tunnel in the contrary direction, from being frontally illuminated, which would dazzle the drivers'eyes.
  • an arrangement according to the invention for illuminating, particularly during day-time, the entrance portions of tunnels comprises a bridge framework 1 of any suitable type, which at its top portion carries a reflecting element 2 in form of a panel that is placed at such a sufficiently high level as to allow the transit of vehicles thereunder.
  • the reflecting element 2 has its reflecting surface 3 turned toward the entrance I of tunnel G, and this reflecting surface is so turned that the incident external light E falling thereupon, is reflected as shown by reference letter R, into the interior of the tunnel entrance I, and on the roadway at the tunnel entrance inward portion.
  • the reflecting panel 2 is so arranged and orientated that the reflected light R is set at an angle that allows the reflected light to penetrate for a length L through and into the tunnel entrance.
  • the longitudinal extent of this length is such that at a predetermined maximum speed of vehicles transiting through a tunnel, it is sufficient for assuring a gradual accomodation of the drivers' eyes to the conditions of a lesser degree of light in the tunnel, so that the "dark orifice" effect is eliminated.
  • the framework 1 may be of a trellis or tubular construction, and on its front side which is turned toward the incoming vehicles, as indicated by arrow V, it may also carry signaling elements, such as a signaling panel.
  • the reflecting element 2 or its reflecting surface 3 may be formed by the rear side of the not shown signaling panel, which is opposite to the tunnel entrance, or the same may be supported on the said rear side of this panel.
  • the reflecting element 2 is arranged at a distance D upstream of the entrance I of tunnel G.
  • the reflecting surface 3 may be of any suitable type, and it may consist of mirror elements that can be differently composed, or of metal panels having a high coefficient of reflection.
  • the reflecting panel 2 may be carried in a shiftable and orientatable manner owing to the provision of actuating means for causing it to swing in the horizontal and vertical direction, and of actuating means for causing it to slide in the transversal or vertical direction (both not shown).
  • the actuating means can be automatically controlled by means of a control unit, such as a training unit, according to brightness sensors, and these means permit to still have optimum features of illumination even with the external light being set at a different angle, and having a different intensity, such as according to the varying position of the sun
  • the reflecting surface 3 is so orientated and arranged that no reflection of light is produced in the contrary direction to the vehicles running direction V, so that any risk of the drivers' eyes to be dazzled, is efficaciously avoided.
  • the reflecting surface 3 may be made in form of a flat, entirely or locally curved, for example concave, surface. This surface may also consist of a plurality of individually curved modules. It is also possible to make the reflecting surface 3 with an angle of curvature which may be varied in one or in two dimensions.
  • this surface may be treated with a matter that prevents the adhesion of dirt thereto. It is also possibile to have cleaning means of the manually operated, or servo-control operated, or automatic type, associated with the reflecting panel 2 for cleaning its reflecting surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Road Signs Or Road Markings (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Claims (9)

  1. Procédé pour illuminer les portions d'entrée de tunnels, particulièrement de tunnels sur les routes nationales et les autoroutes, dans lesquels une portion à l'entrée (I) du tunnel (G) est illuminée avec une lumière externe réfléchie sur une longueur (L) qui est suffisante pour que les yeux du conducteur s'habituent aux conditions d'un degré de luminosité inférieur dans un tunnel à une vitesse de circulation maximale prédéterminée des véhicules, caractérisé en ce que la lumière externe est réfléchie à l'intérieur du tunnel (G) à travers l'entrée (I) du tunnel dans la même direction que la circulation (V) des véhicules entrant dans le tunnel (G), et est dirigée vers le bas vers la chaussée sur une longueur interne (L) de l'entrée (I) du tunnel (G).
  2. Procédé selon la revendication 1, caractérisé en ce que simultanément à cette réflexion de lumière externe, la lumière externe peut être condensée en un faisceau d'une densité de lumière supérieure.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la lumière ambiante naturelle du soleil est utilisée en tant que lumière externe.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la lumière réfléchie est dirigée de telle sorte que tout éblouissement est évité pour les véhicules transitant dans une direction concordant avec la direction de réflexion ou dans la direction inverse.
  5. Ensemble pour mettre en pratique le procédé selon la revendication 1, comprenant au moins un élément réfléchissant (2) disposé à l'extérieur du tunnel (G) et orienté de manière à réfléchir la lumière externe à l'intérieur du tunnel (G), l'élément réfléchissant (2) étant un panneau, monté à un niveau suffisamment élevé au dessus la chaussée pour permettre le transit de véhicules en dessous de celui-ci, par une structure en portique (1) et muni d'une surface de réflexion (3) incurvée, particulièrement concave, qui est formée par des éléments de miroir et est tournée vers l'entrée (I) du tunnel (G) dans la direction de la circulation (V) des véhicules.
  6. Ensemble selon la revendication 5, caractérisé en ce que la courbure de la surface de réflexion (3) est ajustable.
  7. Ensemble selon la revendication 5, caractérisé en ce que l'élément réfléchissant (2) est supporté de manière à pouvoir pivoter autour d'au moins un axe vertical de manière à pouvoir être tourné horizontalement et verticalement par des moyens de contrôle actionnés à la main, par servocommande ou de préférence automatiques.
  8. Ensemble selon l'une des revendications 5-7, caractérisé en ce que l'élément réfléchissant (2) forme le côté arrière d'un élément de signalisation dont le côté avant est tourné vers les véhicules entrants.
  9. Ensemble selon l'une des revendications 5-8, caractérisé en ce que des moyens de nettoyage actionnés à la main ou automatiques sont associés à la surface de réflexion (3) de l'élément réfléchissant (2).
EP93115144A 1992-10-05 1993-09-21 Procédé et dispositif d'éclairage de la zone d'entrée d'un tunnel, en particulier d'un tunnel routier ou autoroutier Expired - Lifetime EP0593915B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITGE920103A IT1257449B (it) 1992-10-05 1992-10-05 Metodo e dispositivo per l'illuminazione delle zone d'imbocco delle gallerie,in particolare stradali ed autostradali.
ITGE92103 1992-10-05

Publications (2)

Publication Number Publication Date
EP0593915A1 EP0593915A1 (fr) 1994-04-27
EP0593915B1 true EP0593915B1 (fr) 1998-01-14

Family

ID=11354331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93115144A Expired - Lifetime EP0593915B1 (fr) 1992-10-05 1993-09-21 Procédé et dispositif d'éclairage de la zone d'entrée d'un tunnel, en particulier d'un tunnel routier ou autoroutier

Country Status (4)

Country Link
EP (1) EP0593915B1 (fr)
AT (1) ATE162288T1 (fr)
ES (1) ES2114987T3 (fr)
IT (1) IT1257449B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006011988U1 (de) * 2006-08-03 2007-12-06 Korsch, Alfred Lichtleitanordnung
CN103423698A (zh) * 2013-08-08 2013-12-04 山西天脊山电动车船有限公司 无能耗公路隧道口反光镜
CN113464893B (zh) * 2021-07-14 2022-11-18 招商局重庆交通科研设计院有限公司 一种具有无影功能的隧道太阳光投射照明的路侧安装方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2334951A1 (de) * 1973-07-10 1975-01-30 Siebenbrock Genannt Thier Paul Vermittlung von natuerlichem licht mittels spiegelreflektionen durch schaechte, die von der erdoberflaeche in unterirdische anlagen (fabrikationsanlagen, tunnels, wohnungen, gesellschaftsraeume usw.) fuehren und mit spiegeln gemaess anlage ausgestattet sind
DE3408649A1 (de) * 1984-03-09 1985-09-12 Ed. Züblin AG, 7000 Stuttgart Traeger fuer tageslichtraster und verfahren zu dessen herstellung
JPS6127517A (ja) * 1984-07-18 1986-02-07 P S Kankyo Giken Kk 太陽光線反射装置

Also Published As

Publication number Publication date
ATE162288T1 (de) 1998-01-15
IT1257449B (it) 1996-01-25
ITGE920103A0 (it) 1992-10-05
ITGE920103A1 (it) 1994-04-05
EP0593915A1 (fr) 1994-04-27
ES2114987T3 (es) 1998-06-16

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