US3807699A - Safety guard rail for highway medians - Google Patents

Safety guard rail for highway medians Download PDF

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US3807699A
US3807699A US00325110A US32511073A US3807699A US 3807699 A US3807699 A US 3807699A US 00325110 A US00325110 A US 00325110A US 32511073 A US32511073 A US 32511073A US 3807699 A US3807699 A US 3807699A
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gutter
barrier
vehicle
roadway
highway
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W France
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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
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0492—Provisions for guiding in combination with rails, e.g. tire-gutters
    • 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
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
    • E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like

Definitions

  • ABSTRACT A barrier or guard rail on a highway median which-has a gutter on each side sufficiently deep and wide so that wheels of vehicles which collide with the barrier fallvinto the gutter and their axles or under carriages drag on the upper edgeof the gutter. Warning lights or beacons, which are either automatically or manually operated, may be placed on the barrier to warn oncoming vehicles of a possible mishap.
  • the barrier or gutter may also contain electronic sensing devices which alert highway personnel of the location of a vehicle in trouble.
  • the field of this invention is highway barriers and guard rails for use on medians which serve to prevent collisions between traffic going in opposite directions.
  • On multi-lane highways there is a manifest danger of vehicles crossing the median into lanes of oncoming traffic. This danger has increased in recent years as the nations highways have become morecrowded and cars have become faster. The widening of highways by changing part or all of a once safely wide median into additional traffic lanes has increased the likelihood of these dangerous accidents.
  • My invention is a barrier, designed to prevent traffic crashing through it into other lanes of traffic, with gutters next to the barrier which are sufficiently wide that when a vehicle crashes against it, the wheels of the vehicle on the side near the barrier fall into the gutter.
  • the sides of the gutter of my invention are sufficiently deep that, once the wheels are in it, (1) the vehicle is not likely to rebound off the barrier back into traffic and (2) the axle or undercarriage of the vehicle will scrape along the upper edge of the gutter, thus acting to slow the vehicle.
  • a car may crash out of control into a barrier due to a failure of the steering or brakes or due to a heart attack or other incapacity 'of the driver.
  • This invention is designed to protect the driver and occupants and occupants of other vehicles from further injuries
  • the barrier may have beacons on it, either manually or automatically operated, which will warn traffic that a vehicle has hit the barrier or is in the gutter.
  • the barrier or gutter may have electronic sensing devices imbedded in them .to notify highway personnel of the 10- cation where a vehicle is in the gutter.
  • the gutter would have drains built into it of sufficient size to handle rain water or meltingsnow from the highway.
  • This invention eliminates the present form of highway gutter.
  • the whole structure may be built adjacent to the highway road bed or be separated from it, by an area of grass for example.
  • my structure can also be built on a side of a roadway with no traffic on the other side of the barrier or it may separate two streams of traffic both traveling in the same direction.
  • FIG. I is a perspective view of my invention, made of concrete with reinforcing bars, in use with a tractor trailer lodged safely against the barrier with wheels of the vehicle in the gutter and signals turned on.
  • FIG. 2 a vertical transverse sectional view taken substantially along line 2-2 in FIG. I, shows the trailer wheels in the gutter and the axle and undercarriage resting on the pressure sensitive switching strip and the upper edge of the gutter.
  • FIG. 3 is a fragmentary enlarged perspective view of my invention as shown in FIGS. 1 and 2, but with the roadway built up to the gutters edge.
  • FIG. 4 is a cross-sectional view similar to FIG. 2, but with an automobile lodged safely in the gutter.
  • FIG. 5 is similar to FIG. 3, but shows a manually actuated distress beacon.
  • the guard rail 10 is separated from adjoining roadways 11, 12 by grass areas 13, 14 about one vehicle wide.
  • the center barrier 15 and the gutters 16, 17 are made of reinforced concrete.
  • the top of the center barrier is approximately 6 feet above the bottom of the gutter
  • the gutter is approximately 3 to 4 feet wide (wide enough to accommodate large dual truck and bus wheels and tires)
  • the upper edge of the side 18 of the gutter and the surrounding ground are approximately 18 inches above the bottom of the gutter.
  • the surface of the bottom of the gutter is approximately parallel to the grade of the highway and the angle of the wall of the gutter to its bottom, and of the barrier to the bottom of the gutter, are each about
  • the gutter has adequate drains 26; and beacons 21 are placed at reasonable intervals.
  • sensing means When a vehicle tire lodges in the gutter, sensing means are triggered, for instance sensing strips 22. This actuates through electric connector 23, 24 the beacons 2l for a sufficient distance in front of andto the rear of the vehicle to warn oncoming traffic.
  • strip 22 may be segmentized into quarter mile sections with each section connected to a different radio frequency transmitting device which can broadcast to highway personnel at a central location when the sensing strip for a particular quarter mile is triggered, thus identifying the location of the lodged vehicle as being within that particular one-quarter, mile interval.
  • the sensing strip itself or auxiliary electronic means may also alert highway personnel of the location of the lodged vehicle.
  • Beacons 21 may also be manually actuated by switches 25.
  • the beacons Zll may be mounted on poles to prevent them being obscured by snow on the barrier top. Also on top of the barrier may be headlight reflecting fences where road contours make oncoming headlights visible.
  • the bottom of the gutter will have drains 26 which will replace the present drainage system of highways.
  • a system for controlling the path of vehicles accih. said upper surface disposed below the level of the dentally leaving a roadway and for restraining the vehiroadway, cles from rebounding into the roadway comprising i. the bottom of said gutter being below the level of a. a roadway having a generally horizontal, hard surthe roadway,
  • vertical barrier means disposed parallel and adja- 2.
  • the structure of claim 1 in which manually actu- 7 cent to said roadway for restraining the vehicle ated warning beacons are mounted on the barrier. from leaving the road, 10 3.
  • the structure of claim 1 in which automaticallyd. said vertical barrier means adjoining and forming actuated warning beacons are mounted on the barrier.
  • said vertical barrier means having a height from 5.

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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 Signs Or Road Markings (AREA)

Abstract

A barrier or guard rail on a highway median which has a gutter on each side sufficiently deep and wide so that wheels of vehicles which collide with the barrier fall into the gutter and their axles or under carriages drag on the upper edge of the gutter. Warning lights or beacons, which are either automatically or manually operated, may be placed on the barrier to warn oncoming vehicles of a possible mishap. The barrier or gutter may also contain electronic sensing devices which alert highway personnel of the location of a vehicle in trouble.

Description

United States Patent [1 1 France Apr. 30, 1974 1 SAFETY GUARD RAIL FOR HIGHWAY MEDIANS 22 Filed: Jan. 19, 1973 21 App]. No.: 325,110
[52] US. Cl 256/13.l, 404/6, 256/1 [51] Int. Cl E01f 15/00 [58] Field of Search 256/13.1; 404/2, 6, 7, 404/8, 9,71,4; 340/114 B,5l,61
[56] References Cited UNITED STATES PATENTS 3,288,440 11/1966 Schimmelpenninck 404/6 3,202,393 8/1965 Pettit 404/4 3,509,527 4/1970 Oakes et a1. 340/51 3,478,311 1 11/1969 Czingula 340/61 2,880,405 3/1959 Lerman 340/114 B FOREIGN PATENTS OR APPLICATIONS 1,350,411 10/1963 France .L. 404/7 1,197,110 7/1965 Germany ..256/13.1
Primary Examiner-James R. Boler Assistant Examiner-Conrad L. Berman Attorney, Agent, or FirmMorton, Bernard, Brown, Roberts & Sutherland [5 7] ABSTRACT A barrier or guard rail on a highway median which-has a gutter on each side sufficiently deep and wide so that wheels of vehicles which collide with the barrier fallvinto the gutter and their axles or under carriages drag on the upper edgeof the gutter. Warning lights or beacons, which are either automatically or manually operated, may be placed on the barrier to warn oncoming vehicles of a possible mishap. The barrier or gutter may also contain electronic sensing devices which alert highway personnel of the location of a vehicle in trouble.
6 Claims, 5 Drawing Figures PATENTEBAPR 30 I974 SHEET 2 OF 3 slaovlsss PATENTEB RR 30 .19"
sum 3 'UF 3 FIG. 4.
n WW 1 SAFETY-GUARD RAIL FOR HIGHWAY MEDIANS BACKGROUND OF THE INVENTION The field of this invention is highway barriers and guard rails for use on medians which serve to prevent collisions between traffic going in opposite directions. On multi-lane highways, there is a manifest danger of vehicles crossing the median into lanes of oncoming traffic. This danger has increased in recent years as the nations highways have become morecrowded and cars have become faster. The widening of highways by changing part or all of a once safely wide median into additional traffic lanes has increased the likelihood of these dangerous accidents.
To prevent these dangers, the art has developed and built barriers, often of reinforced concrete, which are strong enough to prevent a car from crashing through them. While these barriers have thus prevented any collision with oncoming traffic, they often throw the crashing vehicle back into its own highway lane, causing disastrous collisions with vehicles traveling in its direction. The prior art has also addressed the problem of vehicles rebounding into the stream of trafficas for instance the disclosure of US. Leters Pat. No. 3,288,440.
SUMMARY OF THE INVENTION My invention is a barrier, designed to prevent traffic crashing through it into other lanes of traffic, with gutters next to the barrier which are sufficiently wide that when a vehicle crashes against it, the wheels of the vehicle on the side near the barrier fall into the gutter. The sides of the gutter of my invention are sufficiently deep that, once the wheels are in it, (1) the vehicle is not likely to rebound off the barrier back into traffic and (2) the axle or undercarriage of the vehicle will scrape along the upper edge of the gutter, thus acting to slow the vehicle.
A car may crash out of control into a barrier due to a failure of the steering or brakes or due to a heart attack or other incapacity 'of the driver. This invention is designed to protect the driver and occupants and occupants of other vehicles from further injuries The barrier may have beacons on it, either manually or automatically operated, which will warn traffic that a vehicle has hit the barrier or is in the gutter. The barrier or gutter may have electronic sensing devices imbedded in them .to notify highway personnel of the 10- cation where a vehicle is in the gutter. The gutter would have drains built into it of sufficient size to handle rain water or meltingsnow from the highway. This invention eliminates the present form of highway gutter. The whole structure may be built adjacent to the highway road bed or be separated from it, by an area of grass for example.
While I have discussed my invention in the context of a divider between two streams of traffic going in opposite directions, my structure can also be built on a side of a roadway with no traffic on the other side of the barrier or it may separate two streams of traffic both traveling in the same direction.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a perspective view of my invention, made of concrete with reinforcing bars, in use with a tractor trailer lodged safely against the barrier with wheels of the vehicle in the gutter and signals turned on.
' 2 FIG. 2, a vertical transverse sectional view taken substantially along line 2-2 in FIG. I, shows the trailer wheels in the gutter and the axle and undercarriage resting on the pressure sensitive switching strip and the upper edge of the gutter. In this embodiment,.the
wheels of the truck do not contact the bottom of the gutter.
FIG. 3 is a fragmentary enlarged perspective view of my invention as shown in FIGS. 1 and 2, but with the roadway built up to the gutters edge.
FIG. 4 is a cross-sectional view similar to FIG. 2, but with an automobile lodged safely in the gutter.
FIG. 5 is similar to FIG. 3, but shows a manually actuated distress beacon.
DESCRIPTION OF THE PREFERRED EMBODIMENT In its preferred embodiment, the guard rail 10 is separated from adjoining roadways 11, 12 by grass areas 13, 14 about one vehicle wide. The center barrier 15 and the gutters 16, 17 are made of reinforced concrete. The top of the center barrier is approximately 6 feet above the bottom of the gutter, the gutter is approximately 3 to 4 feet wide (wide enough to accommodate large dual truck and bus wheels and tires), and the upper edge of the side 18 of the gutter and the surrounding ground are approximately 18 inches above the bottom of the gutter. The surface of the bottom of the gutter is approximately parallel to the grade of the highway and the angle of the wall of the gutter to its bottom, and of the barrier to the bottom of the gutter, are each about The gutter has adequate drains 26; and beacons 21 are placed at reasonable intervals. When a vehicle tire lodges in the gutter, sensing means are triggered, for instance sensing strips 22. This actuates through electric connector 23, 24 the beacons 2l for a sufficient distance in front of andto the rear of the vehicle to warn oncoming traffic. For example, strip 22 may be segmentized into quarter mile sections with each section connected to a different radio frequency transmitting device which can broadcast to highway personnel at a central location when the sensing strip for a particular quarter mile is triggered, thus identifying the location of the lodged vehicle as being within that particular one-quarter, mile interval. The sensing strip itself or auxiliary electronic means may also alert highway personnel of the location of the lodged vehicle. Beacons 21 may also be manually actuated by switches 25.
The beacons Zll may be mounted on poles to prevent them being obscured by snow on the barrier top. Also on top of the barrier may be headlight reflecting fences where road contours make oncoming headlights visible.
The bottom of the gutter will have drains 26 which will replace the present drainage system of highways.
An automobile which is heading off a roadway will usually be skidding sideways and either the front or rear wheel will lodge in the gutter. Inertial forces will then usually carry the other wheel into the gutter. With both wheels in the gutter the center of gravity is lowered thus lessening the chance of the car flipping.
Having described the preferred embodiment of my invention as required by law and desiring not to be limited thereby but only by the following, I claim:
l. A system for controlling the path of vehicles accih. said upper surface disposed below the level of the dentally leaving a roadway and for restraining the vehiroadway, cles from rebounding into the roadway comprising i. the bottom of said gutter being below the level of a. a roadway having a generally horizontal, hard surthe roadway,
face, 5 j. means for drainage located in said gutter, b. a vehicle having an axle, tires and undercarriage, k. said drainage means disposed below the level of the roadway.
c. vertical barrier means disposed parallel and adja- 2. The structure of claim 1 in which manually actu- 7 cent to said roadway for restraining the vehicle ated warning beacons are mounted on the barrier. from leaving the road, 10 3. The structure of claim 1 in which automaticallyd. said vertical barrier means adjoining and forming actuated warning beacons are mounted on the barrier.
the outer wall of a generally horizontal gutter,
e. said gutter having a depth in excess of the vertical 4. The structure of claim 1 in which warning signals distance between the bottom of said tires and the are actuated in connection with said vehicles lodging undercarriage and axle, in the gutter.
f. said vertical barrier means having a height from 5. The structure of claim 1 in which electronic senssaid gutter in excess of the diameter of a vehicle ing devices, embedded in the barrier or gutter, transmit signals responsive to the location of said vehicle on the g. means comprising the upper surface of an inner roadway.
wall of said gutter, cooperating with the axle or un- 6. The combination of claim 1 in which the barrier dercarriage of said vehicle for decelerating said vemeans is the median of a divided two way highway and hicle and preventing the rebounding back onto said said gutter means adjoin both sides of said barrier.
roadway of said vehicle,

Claims (6)

1. A system for controlling the path of vehicles accidentally leaving a roadway and for restraining the vehicles from rebounding into the roadway comprising a. a roadway having a generally horizontal, hard surface, b. a vehicle having an axle, Tires and undercarriage, c. vertical barrier means disposed parallel and adjacent to said roadway for restraining the vehicle from leaving the road, d. said vertical barrier means adjoining and forming the outer wall of a generally horizontal gutter, e. said gutter having a depth in excess of the vertical distance between the bottom of said tires and the undercarriage and axle, f. said vertical barrier means having a height from said gutter in excess of the diameter of a vehicle tire, g. means comprising the upper surface of an inner wall of said gutter, cooperating with the axle or undercarriage of said vehicle for decelerating said vehicle and preventing the rebounding back onto said roadway of said vehicle, h. said upper surface disposed below the level of the roadway, i. the bottom of said gutter being below the level of the roadway, j. means for drainage located in said gutter, k. said drainage means disposed below the level of the roadway.
2. The structure of claim 1 in which manually actuated warning beacons are mounted on the barrier.
3. The structure of claim 1 in which automatically-actuated warning beacons are mounted on the barrier.
4. The structure of claim 1 in which warning signals are actuated in connection with said vehicle''s lodging in the gutter.
5. The structure of claim 1 in which electronic sensing devices, embedded in the barrier or gutter, transmit signals responsive to the location of said vehicle on the roadway.
6. The combination of claim 1 in which the barrier means is the median of a divided two way highway and said gutter means adjoin both sides of said barrier.
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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105353A (en) * 1975-10-14 1978-08-08 Bork C Gary Barrier with internal drainage duct
US4376595A (en) * 1980-08-08 1983-03-15 Arthur Shaw Monolithic water-permeable concrete roadway and related large area structures with integral drainage elements
US4453844A (en) * 1980-08-08 1984-06-12 Arthur Shaw Monolithic water-permeable concrete roadway and related large area structures with integral drainage elements
US4463934A (en) * 1980-05-14 1984-08-07 Ochoa Pedro S Safety barriers for highways and the like
US4515499A (en) * 1983-04-19 1985-05-07 Furiate David L Traffic lane delineator
EP0297182A1 (en) * 1987-07-01 1989-01-04 Energy Absorption Systems, Inc. Energy absorbing barrier
US5429448A (en) * 1992-04-01 1995-07-04 Ballesteros; Angel G. System of signposting, beaconing, and safety upon impact in barriers for provisional use on highways, roads, and the like
US5453916A (en) * 1993-12-17 1995-09-26 Tennis; Bonnie S. Modular safety light system
EP0856609A1 (en) * 1997-01-31 1998-08-05 de Fermentino Fabregas, Manuel Improved fence
US6502805B2 (en) 2001-01-05 2003-01-07 David R. Lewis Sheet-metal highway guardrail system
US6539175B1 (en) 2000-06-29 2003-03-25 Energy Absorption Systems, Inc. Highway crash barrier monitoring system
GB2386730A (en) * 2002-03-22 2003-09-24 Systems Engineering & Assessme Roadside safety system
US20030183814A1 (en) * 2002-03-14 2003-10-02 Marsh Charles P. Modular barrier system for satisfying needs unique to a specific user
US6695469B2 (en) 2001-11-19 2004-02-24 Energy Absorption Systems, Inc. Roadway freezing point monitoring system and method
GB2393992A (en) * 2002-10-07 2004-04-14 Iain Allison Thomson Crash barrier
US6926462B1 (en) * 2001-11-27 2005-08-09 C.R.F. Societa Consortile Per Azioni Retractable road barrier
US6935622B2 (en) 2001-02-19 2005-08-30 Thorgeir Jonsson Lateral load bearing structural cantilevered system such as highway guardrail and bridge rail systems
US7144186B1 (en) * 2004-09-28 2006-12-05 Kontek Industries, Inc. Massive security barrier
US20080118306A1 (en) * 2006-11-17 2008-05-22 Mccrary Homer T Low Friction Safety System for a Personal Vehicle Guideway
US20100219390A1 (en) * 2006-06-12 2010-09-02 Patriot Barrier Systems, Llc Barrier system
US7942602B2 (en) 2006-06-12 2011-05-17 Protectus, Llc Barrier system
DE102012109579A1 (en) * 2012-10-09 2014-04-10 INFATEC Consulting für innovative Fahrzeugtechnik GmbH Road boundary arrangement installed in motor car track, has track guidance trench that is provided to limit track edge of roadway, and compressible mounting unit that is provided between barrier element and post
JP2016512583A (en) * 2013-03-05 2016-04-28 サンチェス デ ラ クルス， ホセ マヌエルＳＡＮＣＨＥＺ ＤＥ ＬＡ ＣＲＵＺ， Ｊｏｓｅ Ｍａｎｕｅｌ Road traffic protection fence

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US2880405A (en) * 1957-02-28 1959-03-31 Leonard S Lerman Portable illuminated danger signal
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US3202393A (en) * 1962-08-30 1965-08-24 Chester W Pettit Form holding bracket
US3288440A (en) * 1963-08-19 1966-11-29 Hendrikus Laurens Maria Highway guard
US3478311A (en) * 1967-11-22 1969-11-11 Janos Czingula Automobile parking accident alarm system
US3509527A (en) * 1965-10-12 1970-04-28 William S Oakes Guidance systems for directing the driver of a car along a prescribed pathway

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Publication number Priority date Publication date Assignee Title
US2880405A (en) * 1957-02-28 1959-03-31 Leonard S Lerman Portable illuminated danger signal
DE1197110B (en) * 1961-07-07 1965-07-22 Wilhelm Von Der Linde Warning device for with control devices, z. B. crash barriers, provided roads
US3202393A (en) * 1962-08-30 1965-08-24 Chester W Pettit Form holding bracket
FR1350411A (en) * 1963-03-12 1964-01-24 Safety edging for roads
US3288440A (en) * 1963-08-19 1966-11-29 Hendrikus Laurens Maria Highway guard
US3509527A (en) * 1965-10-12 1970-04-28 William S Oakes Guidance systems for directing the driver of a car along a prescribed pathway
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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105353A (en) * 1975-10-14 1978-08-08 Bork C Gary Barrier with internal drainage duct
US4463934A (en) * 1980-05-14 1984-08-07 Ochoa Pedro S Safety barriers for highways and the like
US4376595A (en) * 1980-08-08 1983-03-15 Arthur Shaw Monolithic water-permeable concrete roadway and related large area structures with integral drainage elements
US4453844A (en) * 1980-08-08 1984-06-12 Arthur Shaw Monolithic water-permeable concrete roadway and related large area structures with integral drainage elements
US4515499A (en) * 1983-04-19 1985-05-07 Furiate David L Traffic lane delineator
EP0297182A1 (en) * 1987-07-01 1989-01-04 Energy Absorption Systems, Inc. Energy absorbing barrier
US5429448A (en) * 1992-04-01 1995-07-04 Ballesteros; Angel G. System of signposting, beaconing, and safety upon impact in barriers for provisional use on highways, roads, and the like
US5453916A (en) * 1993-12-17 1995-09-26 Tennis; Bonnie S. Modular safety light system
EP0856609A1 (en) * 1997-01-31 1998-08-05 de Fermentino Fabregas, Manuel Improved fence
US6539175B1 (en) 2000-06-29 2003-03-25 Energy Absorption Systems, Inc. Highway crash barrier monitoring system
US6502805B2 (en) 2001-01-05 2003-01-07 David R. Lewis Sheet-metal highway guardrail system
US6935622B2 (en) 2001-02-19 2005-08-30 Thorgeir Jonsson Lateral load bearing structural cantilevered system such as highway guardrail and bridge rail systems
US7090392B2 (en) 2001-11-19 2006-08-15 Energy Absorption Systems, Inc. Roadway freezing point monitoring system and method
US6695469B2 (en) 2001-11-19 2004-02-24 Energy Absorption Systems, Inc. Roadway freezing point monitoring system and method
US20050058177A1 (en) * 2001-11-19 2005-03-17 Energy Absorption Systems, Inc. Roadway freezing point monitoring system and method
US20050175408A1 (en) * 2001-11-27 2005-08-11 Antonio Fuganti Retractable road barrier
US6926462B1 (en) * 2001-11-27 2005-08-09 C.R.F. Societa Consortile Per Azioni Retractable road barrier
US20030183814A1 (en) * 2002-03-14 2003-10-02 Marsh Charles P. Modular barrier system for satisfying needs unique to a specific user
US6782624B2 (en) * 2002-03-14 2004-08-31 The United States Of America As Represented By The Secretary Of The Army Modular barrier system for satisfying needs unique to a specific user
GB2386730A (en) * 2002-03-22 2003-09-24 Systems Engineering & Assessme Roadside safety system
GB2393992B (en) * 2002-10-07 2004-08-18 Iain Allison Thomson Crash Barrier
GB2393992A (en) * 2002-10-07 2004-04-14 Iain Allison Thomson Crash barrier
US7144186B1 (en) * 2004-09-28 2006-12-05 Kontek Industries, Inc. Massive security barrier
US20100219390A1 (en) * 2006-06-12 2010-09-02 Patriot Barrier Systems, Llc Barrier system
US7942602B2 (en) 2006-06-12 2011-05-17 Protectus, Llc Barrier system
US8206056B2 (en) 2006-06-12 2012-06-26 Patriot Barrier Systems, Llc Barrier system
US20080118306A1 (en) * 2006-11-17 2008-05-22 Mccrary Homer T Low Friction Safety System for a Personal Vehicle Guideway
US8430595B2 (en) * 2006-11-17 2013-04-30 Mccrary Personal Transport System, Llc Low friction safety system for a personal vehicle guideway
DE102012109579A1 (en) * 2012-10-09 2014-04-10 INFATEC Consulting für innovative Fahrzeugtechnik GmbH Road boundary arrangement installed in motor car track, has track guidance trench that is provided to limit track edge of roadway, and compressible mounting unit that is provided between barrier element and post
JP2016512583A (en) * 2013-03-05 2016-04-28 サンチェス デ ラ クルス， ホセ マヌエルＳＡＮＣＨＥＺ ＤＥ ＬＡ ＣＲＵＺ， Ｊｏｓｅ Ｍａｎｕｅｌ Road traffic protection fence

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