NL2024721B1 - Barrier element to block traffic and/or as a security precaution including a ballast compartment - Google Patents

Barrier element to block traffic and/or as a security precaution including a ballast compartment Download PDF

Info

Publication number
NL2024721B1
NL2024721B1 NL2024721A NL2024721A NL2024721B1 NL 2024721 B1 NL2024721 B1 NL 2024721B1 NL 2024721 A NL2024721 A NL 2024721A NL 2024721 A NL2024721 A NL 2024721A NL 2024721 B1 NL2024721 B1 NL 2024721B1
Authority
NL
Netherlands
Prior art keywords
barrier element
ballast compartment
element according
barrier
ballast
Prior art date
Application number
NL2024721A
Other languages
Dutch (nl)
Inventor
Debets Tim
Joseph Gerardus Ramaekers Nicky
Original Assignee
Laura Metaal Holding B V
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 Laura Metaal Holding B V filed Critical Laura Metaal Holding B V
Priority to NL2024721A priority Critical patent/NL2024721B1/en
Priority to CA3165547A priority patent/CA3165547A1/en
Priority to MX2022008969A priority patent/MX2022008969A/en
Priority to PCT/NL2021/050016 priority patent/WO2021150102A1/en
Priority to US17/794,462 priority patent/US20230068991A1/en
Application granted granted Critical
Publication of NL2024721B1 publication Critical patent/NL2024721B1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02Continuous barriers extending along roads or between traffic lanes
    • E01F15/08Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/081Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
    • E01F15/085Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using metal
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02Continuous barriers extending along roads or between traffic lanes
    • E01F15/08Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/081Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
    • E01F15/083Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using concrete
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02Continuous barriers extending along roads or between traffic lanes
    • E01F15/08Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/088Details of element connection

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Signs Or Road Markings (AREA)
  • Road Paving Structures (AREA)

Abstract

The present invention relates to a barrier element to block traffic and/or as a security precaution, comprising: an elongated casing with two opposing longitudinal 5 side walls and an upper wall; at least one casing support structure; and supports for resting on the ground/surface connected to the lower side of the elongate casing, wherein in the elongate casing a ballast compartment is incorporated that has a closed top, closed sides and an open bottom. The present invention also relates to a method for making ready for use of such a barrier element.

Description

Barrier element to block traffic and/or as a security precaution including a ballast compartment The present invention relates to a barrier element to block traffic and/or as a security precaution, comprising: an elongated casing with two opposing longitudinal side walls and an, the two side walls joining, upper wall; at least one casing support structure located in the elongate casing and connecting to both the side walls; and supports for resting on the ground/surface connected to the lower side of the elongate casing and/or the lower side of the casing support structure. The invention also relates to a method for making ready for use of such a barrier element. Barrier elements are installations set up to control or block traffic, e.g. during roadworks, temporary road closure, as a security precaution and/or as Hostile Vehicle Mitigation (HVM). For instance barrier elements for bounding carriageways are well known and widely used. These barrier elements are typically connected end-to-end to form an elongated barrier to protect traffic from roadside obstacles or hazards or to prevent vehicles from crossing over a median and striking an oncoming vehicle. Due to their elongated casing, these type of barrier elements may be individually freestanding or coupled freestanding and are preferably easy to deploy, making them suited for temporary use. As an alternative these type of barrier elements may also be more (semi-)permanently fixed to a roadbed (or other artificial construction like for instance a bridge or ramp) in situations where only a limited deflection distance is allowed. Such (semi-)permanently fixed barrier elements are also referred to as “minimum deflection barrier systems”.
The usage demands of such barrier elements are various. Preferably a barrier element is easy to install and remove, as well as easy to transport and store. These demands may for instance be provided by an elongated element substantially shaped as a traffic barrier, which traffic barrier may - or may not — be firmly connected to the ground or surface. A further elementary requirement of a barrier element is that it provides an essential blocking functionality as it has to be able to handle the forces exerted on the barrier element exerted by a vehicle that collides with the barrier element. The blocking functionality may be provided by the combination of various technical features like the shape of the barrier element, the weight (mass) of the barrier element, the connection(s) of the barrier element with the surface and/or one or more adjoining barrier element(s). And even when one or more of the possible connections break, disconnect and/or detach due to a considerable force being exerted on the barrier element as a result of the impact of a vehicle onto the barrier element, the barrier element still is required to fulfil a blocking function. In order to reduce the severity of a collision, road side barriers often absorb at least part of the kinetic energy of a colliding object, specifically a vehicle, contacting a barrier. Common barrier elements hereby partially plastically deform as a method to dissipate the kinetic energy. The barrier must on the other hand be sufficiently rigid to retain its barrier function.
A problem is that the barrier elements with a higher weight provide a better functionality than lighter barrier element (on the basis of the inertia provided by the barrier element) but that heavier barrier elements are less easy to transport. The enhance functioning of the barrier element according the present invention is further a result of the increased friction between the heavier barrier and a road surface. This problem is solved with a barrier element to block traffic and/or as a security precaution according the introduction of the description, wherein in the elongate casing a ballast compartment is incorporated that has a closed top, closed sides and an open bottom. Such a ballast compartment in itself does not substantially add to the weight of the barrier element but it enables to be filled with a curing material at a first location of use (or close to the first location of use of the barrier element). During the handling, transportation and storage in the initial life phase of the barrier element, being the phase wherein the barrier element is produced, stored and transported to the location of its first use, which may often comprise a long distance transportation and/or many transfer acts, the ballast compartment may stay empty (thus without holding any ballast). The barrier element with initial empty ballast compartment has the advantage that the handling is the barrier element is before filling the ballast compartment with the ballast simpler, cheaper as it requires - due to the lower weight - less from the handling, transportation and/or storage means. After arrival at the first location of (serious) use of the barrier element the ballast compartment may — in an upside down orientation of the barrier element - locally simply be filled with liquid curing ballast material so that the weight of the barrier element substantially grows,, which higher weight provides an enhanced functionality compared to the lighter barrier element with unfilled ballast compartment due to the additional inertia of the barrier element. The barrier element according the invention thus combines the advantages of a lighter barrier element in the first stage of its life cycle and the advantages of a heavier barrier element during the intended use of the barrier element.
An additional advantage of the barrier element according the present invention is that the ballast compartment supports the dimensional stability of the construction of the barrier element, both in filled and in unfilled condition.
The closed top and closed sides are preferably fluid tight connected to each other and are forming together an inverted liquid-tight container with an open underside. This enables the filling of the turned upside down ballast compartment with a curing material without leakage of the curing material when in liquid state.
The ballast compartment may have an elongate ballast compartment casing as to distribute the additional weight of the ballast over a length of the barrier element. In a specific embodiment the length of the ballast compartment comprises the total length, or nearly the total length of the barrier element. In the latter case the end parts (e.g. including couplings) may be joined/untied with the outer ends of the sides of the ballast compartment. The top and sides of the ballast compartment barrier element may be made out of steel made, more specific out of metal sheet material, as in practice steel sheet material is easy to obtain at reasonable prices. Also during the production of prior art traffic barriers and barrier elements often use is made of steel plate material so the production the barrier element according the present invention will normally fit the production facilities of traffic barrier and barrier element producers without the demand for substantive changes of adaptation.
In a specific embodiment at least one of the supports is connected to the underside of two opposed sides of the ballast compartment. Again such an additional connection of parts adds to the structural strength of the construction of the barrier element but as a further advantage hardened ballast material in the ballast compartment may be secured/iocked in its position as one or more supports may
“lock” the hardened ballast material in its position. The support(s) work as a blockade against the hardened ballast material leaving the ballast compartment. Furthermore it is advantageous to connect at least one casing support structure to the ballast compartment. Again such an additional connection will enhance the stability and strength of the construction of the barrier element. In case of considerable forces exerted onto the barrier element these forces will better be absorbed in case the support structure is “backed up” by the ballast filled ballast compartment.
The ballast compartment may also be provided with one or more internal protrusions. The advantage of such protrusion(s) may be that - as also referred to in relation to the compartment attached supports above - hardened ballast material in the ballast compartment may be secured/locked in its position as one or more protrusions may hold the hardened ballast material form-fitting in its position. The protrusion(s) may work as a blockade against the hardened ballast material leaving the ballast compartment. To enable coupling of the barrier element with other barrier elements or other objects the ends of the elongated casing may be provided with couplings. These may be connected to the ballast compartment (or alternatively formulated to a side and/or the top of the ballast compartment to provide additional strength and stability of the structure of both, the individual barrier elements, as well as a row of at least two mutual coupled barrier elements).
As the blocking functionality of the barrier element on the sides is relevant the ends of the elongated casing may be chamfered. This also provides additional strength to the construction and prevents the chance of unwanted contact of road users (pedestrians, cyclists, guards) with the barrier element.
The present invention relates not only to the barrier element with an empty ballast compartment as well as the barrier element wherein the ballast compartment is filled with a curing material. After the ballast compartment being filled with hardened ballast material the barrier element is suited to be used in circumstances in wherein the loads exerted onto the barrier element may be heavy.
A suited curing material may be concrete as it is easy and relatively cheap to obtain and prepare at most locations in the world. Further advantages of concrete is that it is relative heavy and it is also very suitable for absorbing pressure loads. Furthermore an additional reinforcement in the concrete (e.g. a (metal) fibre) to 5 make the concrete suited to withstand substantial tension forces is superfluous as the ballast compartment will function as an external length that may be provided by the ballast compartment.) The barrier element according the present invention may also be provided with at least one, but preferably at least two, lifting couplings (e.g. in the form of openings in the top providing access to a gripping element) to enable to attach a manipulator (e.g. a crane) for instalment and/or removal of the barrier element. The present invention also provides a method for making ready for use of a barrier element according to the present invention, comprising the method steps: A) placing the barrier element is brought in an inverted position; B) filling the ballast compartment with a liquid curing material; C) hardening the curing material; and D) turning the barrier element back to a working position. The filling of the ballast compartment is easy via the open bottom and will increase the weight and stability of the barrier element enhancing its usage options. The method is very easy to be performed at any location and also requires very limited skill. The present invention will be further elucidated on the basis of the non-limitative exemplary embodiments shown in the following figures, herein shows: figure 1 a perspective view of a barrier element according the present invention; figure 2 a perspective bottom view of the barrier element shown in figure 1; and figure 3 a partially cut away perspective view of the barrier element shown in the figures 1 and 2.
Figure 1 shows a barrier element 1 with an elongate casing 2 with a longitudinal side wall 3, an upper wall 4 and an end part 5 with coupling openings 6. From a casing support structure that is located in the elongate casing 2 only casing support structure part 7 on an end part 5 is visible in this figure. On the lower side of the barrier element 1 supports 8 are attached for resting on the ground/surface. On the upper wall 4 connectors 9 enable the attachment of lifting means (e.g. a crane) and or the attachment of other equipment parts (e.g. a raised rails). The side wall 3 has an inward angle 10 reducing the chance of a vehicle coming into contact with the barrier element 1 being launched across the barrier element 1.
In figure 2 the barrier element 1 from figure 1 is shown from the bottom. The elongate casing 2 has an open bottom 11 connecting to a ballast compartment as will be more clearly depicted in figure 3. The supports 8 of the barrier element 1 are partially blocking the opening 11 in the bottom of the barrier element 1. On one end side of the barrier element 1 a single coupling opening 6 is visible and on the opposite end of the barrier element 1 coupling pins 12 are visible. The coupling pins 12 of a barrier element 1 will fit the coupling openings 6 of an adjoining barrier element 1 to link the adjoining barrier elements 1.
In figure 3 the barrier element 1 is depicted in a cut away perspective view wherein the front longitudinal side wall is omitted. Tin the represented situation there is a clear view on a ballast compartment 20 that is embedded in the interior of the barrier element 1. This ballast compartment 20 is open on the lower side (see figure 2) and the supports 8 are attached to two opposing sides (of which only one is visible here) 21. Also ends 22 and the top 23 of the ballast compartment 20 are closed so that no liquid curing material will flow out the ballast compartment 20 when turned upside down. After curing the ballast material is held in the ballast compartment 20 by the supports 8.
Also visible in figure 3 are casing support structures 24 that are (at least partially) connected to the ballast compartment 20 to provide additional stability to the construction of the barrier element 1. Also the coupling openings 6 and, on the opposite side of the barrier element 1, the coupling pins 12 are clearly visible. Again here it is advantageous in the coupling openings 6 and coupling pins 12 receive support from de ballast compartment 20 to ensure additional strength and stability.

Claims (13)

ConclusiesConclusions 1. Barrière-element om verkeer te blokkeren en/of als veiligheidsmaatregel, omvattende: -een langwerpige behuizing met twee tegenover elkaar liggende longitudinale zijwanden en een, de twee zijwanden verbindende, bovenwand; - ten minste één draagstructuur van de behuizing die zich in de langwerpige behuizing bevindt en is verbonden met beide zijwanden; en - steunen om af te steunen op de bodem / het oppervlak die zijn verbonden met de onderzijde van de langwerpige behuizing en / of de onderzijde van de ondersteuningsconstructie van de behuizing, waarbij in de langwerpige behuizing een ballastcompartiment is opgenomen dat een gesloten bovenzijde, gesloten zijkanten en een open onderzijde heeft.Barrier element for blocking traffic and/or as a safety measure, comprising: an elongate housing with two opposite longitudinal side walls and a top wall connecting the two side walls; - at least one support structure of the housing located in the elongate housing and connected to both side walls; and - supports for bearing on the bottom/surface connected to the underside of the elongate housing and/or the underside of the housing support structure, wherein the elongate housing includes a ballast compartment which has a closed top, closed sides and an open bottom. 2. Barrière-element volgens conclusie 1, met het kenmerk, dat de gesloten bovenzijde en gesloten zijkanten van het ballastcompartiment vloeistofdicht zijn.A barrier element according to claim 1, characterized in that the closed top and closed sides of the ballast compartment are liquid-tight. 3. Barrière-element volgens conclusie 1 of 2, met het kenmerk, dat het ballastcompartiment een langwerpige ballastcompartimentbehuizing heeft.A barrier element according to claim 1 or 2, characterized in that the ballast compartment has an elongate ballast compartment housing. 4. Barrière-element volgens een van de voorgaande conclusies, met het kenmerk, dat de bovenzijde en zijkanten van het ballastcompartiment zijn vervaardigd uit metaal plaatmateriaal.A barrier element according to any one of the preceding claims, characterized in that the top and sides of the ballast compartment are made of metal sheet material. 5. Barrière-element volgens een van de voorgaande conclusies, met het kenmerk, dat ten minste een van de steunen is verbonden met de onderzijde van twee tegenover elkaar liggende zijkanten van het ballastcompartiment.A barrier element according to any one of the preceding claims, characterized in that at least one of the supports is connected to the underside of two opposite sides of the ballast compartment. 6. Barrière-element volgens een van de voorgaande conclusies, met het kenmerk, dat ten minste één draagstructuur van de behuizing ís verbonden met het ballastcompartiment.A barrier element according to any one of the preceding claims, characterized in that at least one supporting structure of the housing is connected to the ballast compartment. 7. Barrière-element volgens een van de voorgaande conclusies, met het kenmerk, dat het ballastcompartiment is voorzien van ten minste één inwendig uitsteeksel.A barrier element according to any one of the preceding claims, characterized in that the ballast compartment is provided with at least one internal projection. 8. Barriere-element volgens een van de voorgaande conclusies, met het kenmerk, dat de uiteinden van de langwerpige behuizing zijn voorzien van koppelingen.A barrier element according to any one of the preceding claims, characterized in that the ends of the elongate housing are provided with couplings. 0. Barrière-element volgens conclusie 8, met het kenmerk, dat de koppelingen zijn verbonden met het ballastcompartiment.A barrier element according to claim 8, characterized in that the couplings are connected to the ballast compartment. 10. Barriere-element volgens een van de voorgaande conclusies, met het kenmerk, dat de uiteinden van de langwerpige behuizing zijn afgeschuind.A barrier element according to any one of the preceding claims, characterized in that the ends of the elongate housing are chamfered. 11. Barrière-element volgens een van de voorgaande conclusies, met het kenmerk, dat het ballastcompartiment is gevuld met een uithardend materiaal.A barrier element according to any one of the preceding claims, characterized in that the ballast compartment is filled with a curing material. 12. Barrière-element volgens conclusie 12, met het kenmerk, dat het uithardend materiaal beton is.A barrier element according to claim 12, characterized in that the curing material is concrete. 13. Werkwijze voor het gebruiksklaar maken van een barrière-element, omvattende de werkwijzestappen: A) het in een omgekeerde positie plaatsen van een barrière-element volgens een van de conclusies 1-10; B) het vullen van het omgekeerde ballastcompartiment met een vloeibaar uithardend materiaal; C) het laten uitharden van het uithardend materiaal; en D) het barrière-element terug omdraaien naar een werkpositie.A method for preparing a barrier element for use, comprising the method steps: A) placing a barrier element according to any one of claims 1-10 in an inverted position; B) filling the inverted ballast compartment with a liquid curing material; C) allowing the curing material to set; and D) turning the barrier element back to a working position.
NL2024721A 2020-01-21 2020-01-21 Barrier element to block traffic and/or as a security precaution including a ballast compartment NL2024721B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL2024721A NL2024721B1 (en) 2020-01-21 2020-01-21 Barrier element to block traffic and/or as a security precaution including a ballast compartment
CA3165547A CA3165547A1 (en) 2020-01-21 2021-01-13 Barrier element to block traffic and/or as a security precaution including a ballast compartment
MX2022008969A MX2022008969A (en) 2020-01-21 2021-01-13 Barrier element to block traffic and/or as a security precaution including a ballast compartment.
PCT/NL2021/050016 WO2021150102A1 (en) 2020-01-21 2021-01-13 Barrier element to block traffic and/or as a security precaution including a ballast compartment
US17/794,462 US20230068991A1 (en) 2020-01-21 2021-01-13 Barrier element to block traffic and/or as a security precaution including a ballast compartment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2024721A NL2024721B1 (en) 2020-01-21 2020-01-21 Barrier element to block traffic and/or as a security precaution including a ballast compartment

Publications (1)

Publication Number Publication Date
NL2024721B1 true NL2024721B1 (en) 2021-09-09

Family

ID=70614509

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2024721A NL2024721B1 (en) 2020-01-21 2020-01-21 Barrier element to block traffic and/or as a security precaution including a ballast compartment

Country Status (5)

Country Link
US (1) US20230068991A1 (en)
CA (1) CA3165547A1 (en)
MX (1) MX2022008969A (en)
NL (1) NL2024721B1 (en)
WO (1) WO2021150102A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2022924B1 (en) 2019-04-11 2020-10-20 Laura Metaal Holding B V Friction-increasing element for attachment to a roadblock, and roadblock provided with at least one such friction-increasing element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054954A (en) * 1989-03-16 1991-10-08 International Barrier Corporation Roadway barrier
EP0452893A1 (en) * 1990-04-18 1991-10-23 Sps Schutzplanken Gmbh Roadbarrier for traffic area, in particular for the protection of construction sites
WO2015003213A1 (en) * 2013-07-10 2015-01-15 Saferoads Pty Ltd Roadway barrier
NL2013140B1 (en) * 2014-07-07 2016-08-01 Laura Metaal Eygelshoven B V Longitudinal road barrier segment for temporary use and method for coupling and de-coupling such road barrier segments.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054954A (en) * 1989-03-16 1991-10-08 International Barrier Corporation Roadway barrier
EP0452893A1 (en) * 1990-04-18 1991-10-23 Sps Schutzplanken Gmbh Roadbarrier for traffic area, in particular for the protection of construction sites
WO2015003213A1 (en) * 2013-07-10 2015-01-15 Saferoads Pty Ltd Roadway barrier
NL2013140B1 (en) * 2014-07-07 2016-08-01 Laura Metaal Eygelshoven B V Longitudinal road barrier segment for temporary use and method for coupling and de-coupling such road barrier segments.

Also Published As

Publication number Publication date
CA3165547A1 (en) 2021-07-29
MX2022008969A (en) 2022-09-19
WO2021150102A1 (en) 2021-07-29
US20230068991A1 (en) 2023-03-02

Similar Documents

Publication Publication Date Title
US7654768B1 (en) Massive security barriers having tie-bars in tunnels
US7144187B1 (en) Cabled massive security barrier
US5054954A (en) Roadway barrier
US7862252B2 (en) Vehicle barrier system
US6116805A (en) Crash attenuator with a row of compressible hoops
JP2012516957A (en) Water ballast protective wall and method
NL2024721B1 (en) Barrier element to block traffic and/or as a security precaution including a ballast compartment
KR20120091929A (en) Prefabricated bridge piers protecting device using fiberglass reinforced plastics
WO2011041292A2 (en) Non-bolted bridge parapet barrier
US20240035243A1 (en) Roadblock for Temporary Installation to Block Traffic and/or as a Security Precaution
US11028545B2 (en) Mobile traffic barrier
EP0428097B1 (en) Metallic safety barrier
EP3596272A1 (en) Device for securing a road entry
EP0715026A1 (en) Movable barrier element, barrier formed therewith and method for forming such barrier
US20040079932A1 (en) Shock-absorbing guardrail device
JP3175587U (en) Snow loading equipment
EP3722508A2 (en) Friction-increasing element for attachment to a roadblock, and roadblock provided with at least one such friction-increasing element
EP3453801B1 (en) Road barrier
JP2004156336A (en) Falling-stone protective temporary-work method and component
CN219710146U (en) Box-shaped guardrail
CN219710147U (en) Anchoring-free frame guardrail
CN216275086U (en) Temporary passing device before installation of expansion joint of simply supported beam bridge in construction
CN216339020U (en) Bridge guardrail with various blocking effects
RU2773726C1 (en) Mobile anti-ram barrier “interceptor 10”
WO2014207473A1 (en) Road safety barrier

Legal Events

Date Code Title Description
MM Lapsed because of non-payment of the annual fee

Effective date: 20240201