US20120121326A1 - Systems, Devices, A Systems,Devices, And/Or Methods For Managing Traffic - Google Patents

Systems, Devices, A Systems,Devices, And/Or Methods For Managing Traffic Download PDF

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Publication number
US20120121326A1
US20120121326A1 US13/383,884 US200913383884A US2012121326A1 US 20120121326 A1 US20120121326 A1 US 20120121326A1 US 200913383884 A US200913383884 A US 200913383884A US 2012121326 A1 US2012121326 A1 US 2012121326A1
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United States
Prior art keywords
barrier
interlocking structure
face
traffic separating
extending
Prior art date
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Abandoned
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US13/383,884
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English (en)
Inventor
Michael L. Budd, Sr.
Roy D. Simmons, Jr.
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.)
CONMAT GROUP Inc
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CONMAT GROUP Inc
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Assigned to CONMAT GROUP, INC. reassignment CONMAT GROUP, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BUDD, MICHAEL L., SR., SIMMONS, ROY D., JR.
Publication of US20120121326A1 publication Critical patent/US20120121326A1/en
Abandoned legal-status Critical Current

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    • 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
    • E01F15/00—Safety 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
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/088—Details of element connection
    • 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
    • E01F15/00—Safety 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
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/081—Continuous 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
    • E01F15/083—Continuous 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

Definitions

  • FIG. 1A is a left end view of an exemplary barrier, illustrating an exemplary female interlocking structure
  • FIG. 1B is a side view of the exemplary barrier shown in FIG. 1A ;
  • FIG. 1C is a right end view of the exemplary barrier shown in FIG. 1A , illustrating an exemplary male interlocking structure
  • FIG. 2 is a side view of the exemplary male and female interlocking structures and an exemplary interconnecting structure between the exemplary male and female interlocking structures;
  • FIG. 3 is a plan view of the exemplary male and female interlocking structures and an exemplary interconnecting structure between the exemplary male and female interlocking structures;
  • FIG. 4 is a plan cross-sectional view taken at section A-A of FIG. 1B and showing an exemplary male interlocking structure of one exemplary barrier interlocked with an exemplary female interlocking structure of an adjacent exemplary barrier;
  • FIGS. 5A and 5B show side and plan views, respectively, of an exemplary male interlocking structure
  • FIGS. 6A and 6B show side and plan views, respectively, of an exemplary female interlocking structure
  • FIG. 7 is a plan view of an exemplary group of connected exemplary barriers.
  • FIG. 8 is a side view of an exemplary group of connected exemplary barriers.
  • Median barriers which typically are relatively heavy devices that are frequently utilized for separating lanes of traffic from other lanes of traffic, construction work, etc.
  • the barriers typically must be sufficiently heavy such that, if accidentally contacted by a moving vehicle, they will prevent the moving vehicle from leaving its lane, thereby protecting construction workers, pedestrians, and/or other lanes of traffic on the other side of the median barrier.
  • Pre-cast reinforced concrete can be used to form median barriers. Yet to be most effective, there is a need to ensure that vehicles generally cannot pass through or substantially move a median barrier and thereby create a hazard to the adjacent lane of traffic, constructions workers, pedestrians, etc.
  • Median barriers can have certain resistance to movement caused by the weight of the barrier and the static coefficient of friction between the lower surface of the barrier and the roadway and/or other surface upon which the barrier is located. Because this coefficient of friction is generally fixed, the resistance to lateral movement is generally proportional to the weight of the barrier.
  • temporary barriers are often constructed with a length on the order of 12 feet, although longer or shorter barriers can be provided if the need arises (if, for example, it were necessary to have barriers around a very sharp curve, shorter barriers might permit the outer edge of the curve to be lined with barriers without the barriers intruding on the roadway).
  • a barrier becomes smaller, its weight typically becomes less and, thus, its resistance to lateral movement becomes less. This can create challenges when a need arises for both a resistance to impact-generated movement and a non-linear grouping of barriers.
  • FIG. 1B is a side view of an exemplary embodiment of a precast concrete barrier 10 , showing longitudinally-extending top face 61 , longitudinally-extending bottom face 62 , end face 63 , and end face 64 .
  • FIG. 1A is a side view of an exemplary female interlocking structure 14 on one end of barrier 10 , and showing longitudinally-extending side faces 65 and 66 .
  • FIG. 1C is an end view of the other end of the barrier in FIG. 1B showing an exemplary male interlocking structure 12 located thereon. Depicted in phantom lines are an exemplary connection structure for interconnecting the male interlocking structure 12 with the female interlocking structure 14 internal to barrier 10 .
  • Barrier 10 can be constructed of reinforced concrete having a minimum compressive strength at the age of approximately 28 days of approximately 4,000 psi. Reinforcement in barrier 10 can conform to ASTM A615, Grade 60.
  • the standard length for an exemplary barrier can be approximately 12 feet with the male portion protruding from the end of the barrier by approximately 17 ⁇ 8 (1.875) inches.
  • the width of the body of the exemplary barrier shown in FIGS. 1A and 1C can be approximately 24 inches and the height can be approximately 32 inches.
  • the body can be cast directly and/or in multiple units. For example, if a length less than approximately 12 feet be desirable, such length can be cast directly, and if a section longer than approximately 12 feet be needed, it can be cast as one unit, or as two or more units.
  • FIG. 4 The interrelationship of an exemplary male interlocking structure 12 and an exemplary female interlocking structure 14 with a respective exemplary barrier 10 is shown in FIG. 4 .
  • either the male end of an elevated leftmost barrier or the female end of an elevated right-hand barrier can be lowered vertically so as to interengage the web 20 and flange 22 of male interlocking structure 12 with the slot 30 and tube 26 of female interlocking structure 14 .
  • This gap can permit one barrier to be canted with respect to another so as to permit a curve in a line of barriers without disengaging the interlocking portions of the barriers.
  • the barriers can continue to form a structural interconnection between adjacent barriers when forming a curve or other non-linear pattern along a roadway, median, etc. This spacing also can permit barriers to be interengaged and/or interlocked when there is a vertical displacement, i.e., the line of barriers begins to go up and/or over a hill and/or otherwise encounters a change in grade and/or elevation.
  • FIGS. 2 and 3 show these interlocking structures.
  • Each of reinforcing bars 40 and 42 can comprise a section of, for example, number 5 or number 6 rebar measuring approximately 11 foot 8 inches. Note that the number of reinforcing bars shown in the drawings is conceptual only, and the actual number implemented in a particular barrier can depend on the design requirements of that barrier.
  • interconnecting reinforcing bars 40 and/or 42 can be welded to anchor bars 24 and 28 that can be connected to male interlocking structure 12 and female interlocking structure 14 , respectively.
  • anchor bars 24 and 28 can be connected to male interlocking structure 12 and female interlocking structure 14 , respectively.
  • interconnecting rebar 40 and/or 42 merely can be wired to be substantially adjacent corresponding anchor bars 24 and/or 28 as shown in the phantom lines of FIGS. 1A and 1B . This can facilitate precise alignment of male interlocking structure 12 and/or female interlocking structure 14 while the concrete is poured and/or cured.
  • interconnecting reinforcing bars 40 and/or 42 coextend with anchor rods 24 and/or 28 of male interlocking structure 12 and/or female interlocking structure 14 can be equal to approximately 40 diameters of the larger reinforcing bar, which can provide substantially the same structural strength as welding the bars together.
  • edges and/or major surface intersections e.g., top face to end face, bottom face to end face, side face to end face, etc.
  • 51 , 52 , 53 , and/or 54 can be sharp, perpendicular, notched, angled, beveled, chamfered, rounded, and/or arced.
  • interconnected barriers 10 can have greater freedom to be positioned at an angle with respect to each other's longitudinal axis as measured in a substantially vertical plane without substantial compromise of the strength and/or crash-worthiness of barrier 10 .
  • FIG. 4 is a plan cross-sectional view taken at section A-A of FIG. 1B .
  • edges and/or major face intersections e.g., right side surface to end surface, left side surface to end surface, top face to end face, etc.
  • 56 , 57 , 58 , and/or 59 can be sharp, perpendicular, notched, angled, beveled, chamfered, rounded, and/or arced.
  • interconnected barriers can have greater freedom to be positioned at an angle with respect to each other's longitudinal axis as measured in a substantially horizontal plane.
  • FIGS. 5A and 5B show the details of an exemplary embodiment of the male interlocking structure 12 comprising web 20 and flange 22 , respectively.
  • web 20 can have the form of a substantially rectangular plate that can extend substantially vertically for approximately 6 inches to approximately 18 inches, including all values (e.g., approximately 7.5, 8, 10, 12, 13.75, 15, etc. inches) and subranges therebetween, and/or can extend substantially longitudinally from an end face of barrier 10 by approximately 2 inches to approximately 8 inches, including all values (e.g., approximately 2.5, 3, 3.75, 5.543, 6, 7.25, etc., inches) and subranges therebetween.
  • Flange 22 can have the form of a substantially rectangular plate that can: be positioned substantially orthogonally to web 20 , extend along any portion of the substantially vertical length of web 20 , and/or have a width of approximately 1 inch to approximately 3 inches, including all values (e.g., approximately 1.364, 1.75, 2, 2.5, etc., inches) and subranges therebetween.
  • web 20 can be welded to flange 22 to form a “T” shape (although the combination can be cast, forged, and/or otherwise machined in one substantially monolithic piece).
  • Welded to web 20 can be a number of anchoring bars 24 that can serve to aid in anchoring web 20 in the end of concrete barrier 10 .
  • Reinforcing bars 24 can be, for example, number 6 A706 rebar.
  • the rebar can measure from approximately 2 feet to approximately 5 feet in length, including all values (e.g., 2.5, 2.78, 3, 3.777, 4, etc., feet) and subranges therebetween, and/or can be welded to the web 20 where it is in contact therewith.
  • Web 20 and/or flange 22 can measure approximately one-half inch thick and/or can be standard steel, e.g., A36 (FYE close 36 ksi), structural steel, and/or high strength structural steel, e.g., A500 (FYE close 39 ksi).
  • female interlocking structure 14 can be a tube 26 which can have any desired cross-sectional shape (e.g., triangular, square, rhomboid, rectangular, hexagonal, round, etc.), can be constructed of structural steel, can measure, for example, approximately one-half inch thick and approximately 4 inches square, can extend for a predetermined portion of the height of the barrier, and/or can be positioned in a predetermined position with respect to the height of the barrier (e.g., substantially centered, offset by approximately 2 inches from center, raised approximately 10 inches from the bottom surface of the barrier, etc.).
  • the longitudinal axis of tube 26 can be substantially orthogonal with the longitudinally extending direction of the barrier.
  • Substantially parallel with the longitudinally extending direction of the barrier and/or affixed and/or welded to the sides of the substantially vertically oriented tube 26 can be sections of anchoring bars 28 , which can be approximately 2 feet in length. Anchoring bars 28 can serve to anchor tube 26 in the reinforced concrete of the median barrier.
  • a vertically extending slot 30 In the portion of tube 26 external to the concrete material of median barrier 10 can be a vertically extending slot 30 that can have a width greater than the thickness of web 20 , such as approximately 1 inch.
  • the edges of tube 26 defined by slot 30 can be perpendicular, angled, beveled, chamfered, arced, rounded, etc.
  • flange 22 can be in the form of a steel structural tube having smaller outside longitudinal cross-sectional dimension(s) than the inside longitudinal cross-sectional dimension(s) of tube 26 .
  • tube 26 has a circular longitudinal cross-section with an inner diameter of 4 inches
  • flange 22 can also have a circular longitudinal cross-section, but with an outer diameter of less than 4 inches, so that flange 22 is free to move longitudinally with respect to tube 26 .
  • tube 26 has a square longitudinal cross-section with an inner dimensions of 3 inches by 3 inches
  • flange 22 can also have a square longitudinal cross-section, but with outer dimensions of less than 3 inches, so that flange 22 is free to move longitudinally with respect to tube 26 .
  • intersection of web 20 with flange 22 would likely form a cross-sectional shape of other than a “T” shape in such embodiments. Nevertheless, because the width of slot 30 can be less than the dimension of flange 22 measured in the same direction, relative non-longitudinal movement between the flange and tube of two interlocked barriers would be substantially limited, effectively making the two barriers substantially inseparable in response to vehicular impact.
  • FIG. 7 is a plan view of an exemplary group of interconnected exemplary barriers 72 , 74 , and 76 , and shows that such barriers can form a curve in a substantially horizontal plane, that curve having, for example, a minimum radius of approximately 50 feet to infinity, including all values (e.g., 63.7, 85, 102.33, 125, 160, 200, 400, 800, etc.), and subranges therebetween, when measured to the innermost surface (or outermost surface if desired) of the barriers with respect to an axis of the curve.
  • a minimum radius of approximately 50 feet to infinity including all values (e.g., 63.7, 85, 102.33, 125, 160, 200, 400, 800, etc.), and subranges therebetween, when measured to the innermost surface (or outermost surface if desired) of the barriers with respect to an axis of the curve.
  • any adjacent pair of such barriers can form an angle with respect to each other's longitudinal axis, as measured in a substantially horizontal plane, of approximately 0 to approximately 15 degrees, which is equivalent to approximately 0 to approximately 16.7 percent, including all values (e.g., approximately 5, 6.1, 7.5, 8.04, 10, 12.5, etc., degrees, and/or approximately 5.6, 6.5274, 8.5, 9, 11.25, 14, etc., percent) and subranges (e.g., between 3.1 and 7.94 degrees, 5 degrees to 10 percent, at least 5 degrees, greater than 6 percent, etc.) therebetween.
  • all values e.g., approximately 5, 6.1, 7.5, 8.04, 10, 12.5, etc., degrees, and/or approximately 5.6, 6.5274, 8.5, 9, 11.25, 14, etc., percent
  • subranges e.g., between 3.1 and 7.94 degrees, 5 degrees to 10 percent, at least 5 degrees, greater than 6 percent, etc.
  • FIG. 8 is a side view of an exemplary group of interconnected exemplary barriers 82 , 84 , and 86 , and shows that such barriers can accommodate a grade change ( ⁇ ) in a substantially vertical plane, that grade change having an angle measuring approximately 0 degrees to approximately 4 degrees.
  • ⁇ grade change
  • any adjacent pair of such barriers can form an angle with respect to each other's longitudinal axis, as measured in a substantially vertical plane, of approximately 0 to approximately 4 degrees, which is equivalent to approximately 0 to approximately 4.5 percent, including all values and subranges therebetween, such as 2.75 degrees, 3.8 percent, greater than 3 degrees, etc.
  • the maximum possible degree (or percent) of the angle between the longitudinal axes of those barriers' bodies can be affected by any combination of:
  • interconnecting bars and/or anchor bars can be mechanically connected, e.g., through U-shaped bolts and/or extending through holes in the structural tube and/or web to aid in connecting the interlocking components to their respective ends of the pre-cast concrete median barrier.
  • different numbers of interconnecting bars and/or anchor bars and/or different sizes of bars can be used to maintain a secure connection between the interlocking structures and their respective barriers.
  • different arrangements of webs and/or flanges can be used as long as the web can be inserted vertically into the slots of the female interlocking structure and the flange is wider than the slot so as to prevent disengagement in any direction other than a substantially vertical direction.
  • certain exemplary embodiments can provide a system, machine, device, and/or manufacture comprising, and/or a method for creating and/or using, a traffic separating median barrier comprising:

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Road Paving Structures (AREA)
US13/383,884 2009-09-29 2009-09-29 Systems, Devices, A Systems,Devices, And/Or Methods For Managing Traffic Abandoned US20120121326A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2009/058704 WO2011040902A1 (fr) 2009-09-29 2009-09-29 Barrière médiane de séparation de trafic

Related Parent Applications (1)

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PCT/US2009/058704 A-371-Of-International WO2011040902A1 (fr) 2009-09-29 2009-09-29 Barrière médiane de séparation de trafic

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US16/884,096 Continuation US20200283976A1 (en) 2009-09-29 2020-05-27 Systems, Devices, and/or Methods for Managing Traffic

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US13/383,884 Abandoned US20120121326A1 (en) 2009-09-29 2009-09-29 Systems, Devices, A Systems,Devices, And/Or Methods For Managing Traffic
US16/884,096 Abandoned US20200283976A1 (en) 2009-09-29 2020-05-27 Systems, Devices, and/or Methods for Managing Traffic
US17/165,160 Abandoned US20210156097A1 (en) 2009-09-29 2021-02-02 Systems, Devices, and/or Methods for Managing Traffic
US18/367,492 Abandoned US20230417003A1 (en) 2009-09-29 2023-09-13 Systems, Devices, and/or Methods for Managing Traffic
US19/007,868 Pending US20250250753A1 (en) 2009-09-29 2025-01-02 Systems, Devices, and/or Methods for Managing Traffic

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US17/165,160 Abandoned US20210156097A1 (en) 2009-09-29 2021-02-02 Systems, Devices, and/or Methods for Managing Traffic
US18/367,492 Abandoned US20230417003A1 (en) 2009-09-29 2023-09-13 Systems, Devices, and/or Methods for Managing Traffic
US19/007,868 Pending US20250250753A1 (en) 2009-09-29 2025-01-02 Systems, Devices, and/or Methods for Managing Traffic

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200283976A1 (en) * 2009-09-29 2020-09-10 Conmat Group, Inc. Systems, Devices, and/or Methods for Managing Traffic
US20200401585A1 (en) * 2019-05-31 2020-12-24 Teradata Us, Inc. Spatial joins in multi-processing computing systems including massively parallel processing database systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12391149B2 (en) * 2021-12-28 2025-08-19 Caterpillar Global Mining Equipment Llc Relocatable base for elevated power rails and method of deployment

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US5088874A (en) * 1990-05-08 1992-02-18 Energy Absorption Systems, Inc. Highway barrier transporter
US5651635A (en) * 1995-04-24 1997-07-29 Schuylkill Products, Inc. Concrete barrier with reinforcement
US5975793A (en) * 1997-11-12 1999-11-02 Conmat Group, Inc. Interlocking median barrier
US6203242B1 (en) * 1998-02-10 2001-03-20 Gunnar Englund Byggare Ab Crash barrier and barrier elements
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US20200283976A1 (en) * 2009-09-29 2020-09-10 Conmat Group, Inc. Systems, Devices, and/or Methods for Managing Traffic
US20210156097A1 (en) * 2009-09-29 2021-05-27 Conmat Group, Inc. Systems, Devices, and/or Methods for Managing Traffic
US20200401585A1 (en) * 2019-05-31 2020-12-24 Teradata Us, Inc. Spatial joins in multi-processing computing systems including massively parallel processing database systems
US12135720B2 (en) * 2019-05-31 2024-11-05 Teradata Us, Inc. Spatial joins in multi-processing computing systems including massively parallel processing database systems

Also Published As

Publication number Publication date
CA2765563C (fr) 2017-05-16
US20250250753A1 (en) 2025-08-07
WO2011040902A1 (fr) 2011-04-07
US20200283976A1 (en) 2020-09-10
AU2009353352A1 (en) 2012-01-19
AU2009353352B2 (en) 2013-10-31
CA2765563A1 (fr) 2011-04-07
US20230417003A1 (en) 2023-12-28
US20210156097A1 (en) 2021-05-27

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