A method for applying a fast curing epoxy traffic marking composition is provided in which curing agents are coated on a carrier such as glass beads or porous silica. These carriers are dropped onto the epoxy coating and promote rapid curing of the top layer of the epoxy coating while the bottom layer is given additional time to adhere to the roadway surface. This enables the application contractor to open a marked roadway in a quicker manner with less motorist disruption.

A system for dispensing a fast curing epoxy traffic marking composition to a transportation corridor includes a plurality of bins positioned on a transportation corridor marking dispensing apparatus. A first bin contains an epoxy coating which is applied by the dispensing apparatus on a transportation corridor. A second bin contains at least one curing agent which is coated on a carrier such as glass beads or porous silica. These carriers are dropped onto the epoxy coating by the dispensing apparatus and promote rapid curing of the top layer of the epoxy coating while the bottom layer is given additional time to adhere to the roadway surface. This enables the application contractor to open a marked roadway in a quicker manner with less motorist disruption. An optional third bin contains retroreflective beads which are applied to the epoxy coating by the dispenser apparatus to improve visibility of the line marking.

An apparatus for locating an object of interest using offset. The object may be a mobile platform, or portion of same, associated with a vehicle, or a pavement segment or feature of or on a pavement segment on which the mobile platform is located. The vehicle includes first and second fixed points having a known offset from each other. An image sensor whose field of view includes the second fixed point and a segment of the pavement surface provides image data which is used with the known offset to calculate the precise location of the object of interest.

A pavement marker dispenser for a pavement marking system dispenses retroreflective markers for a roadway with more accurate marker spacing. The dispenser includes an elongated feed tube that houses a generally vertical curvilinear stack of pavement markers. The feed tube has top and bottom openings to respectively receive and dispense the markers in a downwardly vertical direction. The feed tube has a nonlinear curvature along its length to produce the curvilinear stack of markers so that a downwardly vertical stacking force imposed on a bottommost marker to be dispensed is reduced. The feed tube has first and second curved portions so that the nonlinear curvature is generally serpentine in shape. A disc actuator having a pushing arm extends perpendicular to the feed tube to push the bottommost marker in a rearward and downward direction into the delivery chute, which dispenses the markers.

Disclosed herein are an apparatus and method for applying a magnetic pattern to lanes with magnetic paint. The apparatus includes an electromagnet for generating a write magnetic field toward the ground by being installed in a moving object, a current supplier for providing the current required to generate the write magnetic field, a portable power generator for supplying power required in order for the current supplier to generate the current, and a cooler for dissipating heat generated from at least one of the electromagnet and the current supplier.

The present invention relates to a smart road marking construction method, a smart road marking, and an autonomous driving system using the same. To this end, the smart road marking construction method according to an embodiment of the present invention comprises: a step (S10) of preparing a road marking composition by mixing a paint and a hardener; a step (S20) of forming a base layer 10 by applying the road marking composition to an upper surface of a road 1; a step (S30) of forming a bead layer 20 by applying glass beads 21 containing magnetic materials (M) to an upper surface of the base layer 10; and a step (S40) of allowing the resulting bead layer to be cured for a certain period of time. As a result, the lane recognition rate of autonomous vehicles by means of radar sensors can be improved, thereby addressing the limitations of conventional vision-based road markings.

A highway marking paint is provided formed from a waterborne latex paint and porous silica beads having a pore volume in the range of 0.3 cc/g to 3.0 cc/g. The silica beads enable the paint to achieve sufficient viscosity to permit the application of a highway marking of at least 40 mil and preferably at least 120 mil. The highway marking paint can also include retroreflective glass beads. Optionally, the highway marking paint further includes an acrylic polymer emulsion. The porous silica in bead form enhances the flowability of the porous silica beads and retroreflective beads.

A line striper for ground marking with a sprayable fluid includes a horizontal frame, a front wheel mounted to the horizontal frame, a left rear wheel and a right rear wheel mounted to the horizontal frame, a rear axle extending from one or both of the left rear wheel and the right rear wheel, a mounting arm assembly connected to the horizontal frame, a spray gun mounted on the mounting arm assembly and positioned for spraying the ground, a pump mounted on the horizontal frame, the pump configured to pump the sprayable fluid to the spray gun, and a fluid reservoir support stage removably positioned over the horizontal frame.

A line striper includes a frame supported by a plurality of wheels, a spray gun supported by the frame and positioned for ground spraying, a pump for supplying line striping fluid to the spray gun, the pump supported by the frame, an electric motor for driving the pump, the motor supported by the frame, a motor control attached to the motor and electrically connected to the motor, an inverter electrically connected to the motor control, the inverter supported by the frame, a first battery electrically connected to the inverter, the first battery supported by the frame, and a power switch electrically connected to the inverter, the motor control, and the first battery, the power switch supported by the frame.

A hot applied thermoplastic pavement composition and method of using is described wherein the composition comprises; a modified polyamide resin in the range of between 3 and 10 percent by weight, wherein the composition contains rosin-modified esters, a copolymer, 30-70 percent by weight of a glass bead intermix, a range of between 1 and 15 percent by weight of either white or yellow pigment, the balance of the composition being selected from the group consisting of; one or more plasticizers, inorganic fillers, waxes, antioxidants and light stabilizers.