A work vehicle system configured of a plurality of work vehicles performing work relating to magnetic markers to be laid on a road surface so as to be detectable by a magnetic sensor attached to a bottom surface side of a vehicle in order to achieve vehicle-side control for assisting driving operation of the vehicle by a driver or automatic driving not relying on operation of the driver, including a target acquisition apparatus which acquires a control target for travelling along a laying line where the magnetic markers are to be laid, an automatic steering apparatus for achieving automatic steering by controlling a steering angle of a steering wheel based on the control target, and a work apparatus which takes charge of the work relating to the magnetic markers.

An installation system has a laser range finder set at a reference position to measure a distance to a target, an installation cart which performs operation for laying a magnetic marker in a road, and an arithmetic unit which identifies a position relation of a laying position where the magnetic marker is laid with respect to the reference position. When operation for laying the magnetic marker in a road is performed, by taking the installation cart during performing the operation of laying the magnetic marker in the road as a target, based on a distance to the installation cart measured by the laser range finder, the position relation of the laying position with respect to the reference position is identified by the arithmetic unit.

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.

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.

A field programmable controller for controlling the components of roadway marking equipment mounted on a vehicle. The controller includes a general-purpose computer and a microcontroller for controlling and monitoring roadway marking equipment and which further maintains the operational state of the roadway marking equipment during reprogramming of the microcontroller. A wireless transceiver in communication with the internet for receiving software update data is also included. Finally, the controller has a configurable state machine responsive to the microcontroller and configured for: defining the start-up operational state of the components; maintaining a predetermined operational state of the components during the time the computer and microcontroller is being reprogrammed with software update data; and maintaining the operational state of the components for normal operation.

A method of resurfacing a length of roadway or other paved surface having markers thereon includes covering the markers with respective marker covers, applying a coating material to the road and the marker covers, then removing the covers. The marker covers mask the markers from the coating material. An inside dimension of the marker covers should approximate the widest outside dimension of the markers. The inside height of the marker cover can be higher than the height the marker extends over the surface. The cover should rest on the surface and not on the marker, for preferred masking and stability. The weight and shape of the covers should permit them to stay in place despite various disrupting forces. After coating, the covers can be removed or crushed in place.

A hot applied thermoplastic pavement composition and method of using 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.

A hot applied thermoplastic pavement composition and method of using 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.

A laser is pivotally attached to a line striping machine. The laser projects a planar line outwardly from the line striping machine. The laser freely rotates about a longitudinal axis, under the influence of gravity, relative to the line striping machine, independent of the orientation of the line striping machine, so as to project a vertically planar line regardless of the vertical orientation of the line striping machine. The subject technology compensates for changes in surface contour by providing a rotating laser that projects a vertically compensated projection plane that causes a vertically compensated reference line projected upon the surface.

A laser is pivotally attached to a line striping machine. The laser projects a planar line outwardly from the line striping machine. The laser freely rotates about a longitudinal axis, under the influence of gravity, relative to the line striping machine, independent of the orientation of the line striping machine, so as to project a vertically planar line regardless of the vertical orientation of the line striping machine. The subject technology compensates for changes in surface contour by providing a rotating laser that projects a vertically compensated projection plane that causes a vertically compensated reference line projected upon the surface.