Abstract: A pressure regulating marking on a roadway area is formed by applying onto a surface area a traffic-wear resistant layer having a small thickness and constituted by a pigmented resin material, providing a plurality of retroreflective globules having a minimum dimension which is many times greater than the thickness of the traffic-wear resistant layer, wetting the globules by a wetting resin material which is compatible with the pigmented resin material of the traffic-wear resistant material, and applying the globules which are wetted by the wetting resin material, onto the traffic-wear resistant layer, so that the wetting resin material forms, in the region of each of the globules a collar which firmly connects each globule to the traffic-wear resistant layer.

Abstract: This invention describes a reflective lane marker for roads which is mounted so that the upper surface of the marker is flush with the road surface. It is so arranged as to reflect light from headlights back in the same general direction from which it comes and which can operate when covered with a film of water. Because it is flush with the road surface, snowplowing can be used without harm to the device.

Abstract: A tubular synthetic-resin body usable as a roadway marker comprises spaced upper and lower tubular parts interconnected by thin webs formed integrally with the upper and lower parts. A middle part of contrasting color lies between these upper and lower parts and has grooves receiving the connecting webs. Such a roadway marker is made by fitting the middle part over a core of a mold, and then injecting synthetic-resin material into the mold around this sleeve so as to form the upper and lower parts and the web.

Abstract: Flexible elongate web structures with reflective faces are fixed on opposing ends of a support arm which is centrally mounted over a highway barrier. Appropriate geometric structure and material selection provide a non-destructive bending response for the respective web structures during vehicle impact and provide for restoration to original orientation. The support or mounting arm is formed of polymer material having sufficient rigidity to support the web structure during static conditions and sufficient compliance and flexibility to bend and twist during the vehicle impact.

Abstract: A reflective roadway delineator for reflecting incident light directed thereon by an oncoming vehicle back to the vehicle, the delineator being capable of being mounted upon either a roadway barrier having a planar longitudinally extending surfaces thereon or in the generally U-shaped trough of a longitudinally extending highway guard rail. The delineator comprises a base member having at least two different mounting surfaces thereon. One of the surfaces is engageable with and complementary to a planar surface of the associated barrier and the other of the surfaces is complementary to and engageable with at least one wall defining the recess of the trough in the associated guard rail. A reflex reflector is fixedly carried by the base member at predetermined angles relative to the mounting surfaces.

Abstract: An improved roadside reflector assembly which when mounted alongside a road is continuously visible by retroreflected light by the driver of a vehicle moving along the road at night-time within a viewing angle of from about 0.degree. to 60.degree. relative thereto, where 0.degree. extends substantially parallelly to a tangent to the road in the region where such reflector assembly is located. Also, such driver continuously sees retroreflected light at any given instant of time while approaching and passing a group of the reflector means so employed and so located, the individual such reflector means being longitudinally spaced from one another along such a road.

Abstract: This invention is directed to a visual vehicular parking aid in general, and more specifically to a plurality of vertically suspended position indicators to direct a person driving an automobile into a parking space when the normal pavement markings are not visible or present.

Abstract: Coded binary signals are coupled to an automotive vehicle by a magnetic signpost embedded in a traversed roadway lane. The signpost includes polarity coded magnetic pole faces having vertically directed flux lines at differing spaced longitudinal regions along the lane. Pole faces are arranged so a flux null is between adjacent longitudinal regions. Differing signals are coupled to vehicles going in opposite directions in adjacent lanes by unambiguously coding the signpost in opposite directions and arranging the pole faces so that magnetic flux continuously extends across a majority of both lanes. A detector on a vehicle includes a magnetic field concentrator including a pair of vertically extending and aligned low reluctance magnetic pole pieces having an air gap between them, in which a Hall plate is positioned. The pole piece closest to the road has shorter length than the pole piece remote from the roadway.

Abstract: A highway marker comprises a metallic body of rectangular shape adapted for nesting and enclosure within a recess formed in a roadway. Said body has upright side and end walls and a flat bottom wall and with opposed downwardly and inwardly inclined inner side walls and downwardly and inwardly inclined inner end walls. A transverse rib of A-shape extends between said inner side walls intermediate their ends and has a pair of oppositely arranged downwardly and inwardly inclined side walls, all said inclined walls extending to and merging with said bottom wall. A reflectorized layer is applied to each inclined wall. A layer of adhesive material is applied to the bottom and side walls adapted for securing the marker within a roadway recess so as to be flush with the top surface of said roadway.

Abstract: An improved roadway surface marking tape material of the kind provided with retroreflective elements or other visibility and/or anti-skid improving elements, upwardly protruding over the generally planar upper face of the tape, the new tape being improved by the provision of further protruding components secured to said upper layer, of height over said face, greater than that of such elements, and comprising sloping portions, for raising snowplowing implements passing over the marking, and causing such implement to slide above said elements, without interfering with the same and therefore protecting them against the destructive action of said snowplowing means.

Abstract: An improved roadside marker system wherein each individual reflector means is continuously visible by the driver of a vehicle moving along the roads surface at night-time from an angle of 0.degree. to 60.degree. where 0.degree. extends substantially parallelly to a tangent to the road side portion in the region where each respective one of the reflector means is located. Also, such driver continuously sees retroreflected light at any given instant of time while approaching and passing a group of the reflector means so employed and so located.

Abstract: A railless walkway for blind and visually handicapped persons is constructed using foot plates fastened to the ground. By feeling humps made into the foot plates, the blind are guided along walkways without the use of rails or canes. Variations in the shape and/or number of humps provide additional information as to walkway directions, such as turns, steps, stairs, rest areas, and the like. The foot plates are fabricated out of permanent, solid material and are either incorporated in the walkway during its construction or are fastened permanently to the walkway if added later.

Abstract: A reusable safety warning device. A plurality of reflective strips of flexible material are adapted to protrude outwardly from an end of an elongate cylindrical body member and droop down to form a pompon-like reflector. A battery-powered light source is disposed within the reflector to radiate light which is reflected off of the flexible strips so that the device resembles a burning incendiary flare. Means are provided for retracting the reflective strips and light source inside the elongate body for storage of the device, and the device is provided with a pair of retractable legs for supporting the reflector end of the body above a surface when in use.

Abstract: The disclosure describes, in the upwardly facing surface of a layer of material forming a traffic-regulating indicium on a road pavement, a reflective system consisting of a plurality of reflex-reflective aggregates consisting each of a main element of polymeric transparent material, partially embedded in said layer and having a convex portion projecting upwardly of said surface and having an index of refraction such that rays impinging said exposed portion at large angles of incidence are at least partially refracted into said element, said each aggregate further comprising a transparent binder substance contacting other portions of said element, said each aggregate still further comprising a monolayer of transparent beads contacting the and partially embedded into said transparent binder, having part-spherical surfaces facing away from said other portions of said element and a reflective coating provided over said part-spherical surfaces, the index of refraction n.sub.1 of said main element being from 1.

Abstract: A low-profile raised retroreflective pavement marker that resists loosening and removal from a paved surface comprises a flat dead-soft base sheet and at least one elastically deformable retroreflector attached to one face of the base sheet so as to extend above the base sheet no more than about one centimeter.

Abstract: A barrier for placement intermediate two adjacent highway lanes. Apparatus for transferring the barrier from a location intermediate two lanes to a location intermediate two other lanes so as to accommodate differing traffic flow patterns for different times of day and different traffic conditions.

Abstract: Moveable barrier apparatus is disclosed for use in controlling traffic along parallel lanes of a roadway. The apparatus includes elongate channels which are embedded in the roadway transversely of the lanes at spaced-apart positions. Carrier cars are mounted by roller bearings for movement lengthwise within each channel, and posts which are mounted on the cars extend upwardly above the roadway through slots formed along the channels. An elongate upstanding barrier is mounted on the posts to form a divider between adjacent lanes of the roadway. Actuators are mounted in each of the channels for moving the cars and posts lengthwise of the channels for selectively changing the transverse position of the barrier. In one embodiment the actuator comprises a single hydraulic ram, and in another embodiment the actuator comprises a pair of telescoping hydraulic rams positioned on opposite sides of the car within the channel.

Abstract: Posts such as highway signs or reflector posts, exposed to impact by oncoming vehicles, are first anchored in the ground and then formed with a weakened fracture zone or shear section immediately above ground level by use of a pliers-type tool locked around the post and slidably mounting a punch which when struck by a hammer will pierce the post. The tool is positioned on the post to form the pierced hole facing the direction of oncoming traffic so that the post will break at ground level without leaving an upstanding segment when impacted by a vehicle. The invention includes the reuse of the post after it is broken off at ground level by driving the broken end of the post into the ground and then again using the tool to punch a hole in the post at the new ground level of the post.

Abstract: A marking system for ski runs or the like wherein a plurality of demarcation signs, each of preferably spherical shape and with two halves which are differently colored, are symmetrically arranged along the two edges of the run.

Abstract: The disclosure describes new and improved reflex reflecting systems of the type comprising a spherical transparent lens having reflex reflective means arranged about it and secured relative thereto and optically associated therewith by means of a transparent binder material, the system being designed to be embedded in part in the surface layer of a traffic regulating sign formed on a traffic carrying surface of a road with the protecting portion of the lens being uncovered and exposed to impinging light, the said lens and the said binder being made of a transparent material the index of refraction of which is from 1.3 to 1.7, preferably about 1.5, and the total transparency parameter of the system, for light impinging under an incidence angle of 80.degree., being greater than 0.2.

Abstract: A roadway has a plurality of lanes defined thereon with a plurality of dividers disposed on the roadway to separate the lanes into first and second groups. A plurality of cross-beams are mounted above the roadway in transverse relationship therewith with each cross-beam having a trolley movably mounted thereon. The trolley has hoist means thereon for selectively paying-out a cable for attachment to the dividers whereby the dividers can be lifted and moved transversely across the roadway to separate the lanes into third and fourth groups having different numbers of lanes than the above-mentioned first and second groups to accommodate changing traffic patterns.

Abstract: A deformable elongate upright hollow cylindrical body is formed by a plurality of concentrically stacked tire casings which are bound together by cables. Retaining anchors, each having an eye encircling one of the cables, holds the cylindrical body in a predetermined position to function as a vehicle barrier. Used, empty crushable containers within the hollow body provide additional energy absorption. A barricade wall is fabricated from several deformable bodies, each in tangential contact and secured by additional cables.