Road signal systems and methods for controlling road signals include a piezoelectric layer integrated with a surface that undergoes stresses with traffic passing over the surface. A power collection circuit is configured to collect and store power from the piezoelectric layer. One or more devices receive electrical power from the power collection circuit responsive to traffic passing over the surface.

A pavement repair system utilizes solid phase auto regenerative cohesion and homogenization by liquid asphalt oligopolymerization technologies. The system is suitable for use in repairing asphalt pavement, including pavement exhibiting a high degree of deterioration (as manifested in the presence of potholes, cracks, ruts, or the like) as well as pavement that has been subject to previous repair and may comprise a substantial amount of dirt and other debris (e.g., chipped road paint or other damaged or disturbed surfacing materials). A system utilizing homogenization by liquid asphalt oligopolymerization is suitable for rejuvenating or repairing aged asphalt, thereby improving properties of the paving material.

A roundabout for vehicular traffic is provided from a plurality of modular blocks arranged in a generally circular roundabout pattern and affixed to a roadway or ground surface at an intersection of vehicle roadways. Roundabouts can be formed in any desired diameter. In some embodiments, the modular blocks can have a trapezoidal plan shape laid out in concentric rings. The trapezoidal shaped blocks can be cut from a length of board having a constant width and thickness. The modular blocks can be provided as a kit of parts delivered to worksite at an intersection of vehicle roadways where a roundabout is desired. Splitter islands, sidewalks, and curbing of blocks having appropriate shapes can also be provided.

A roundabout for vehicular traffic is provided from a plurality of modular blocks arranged in a generally circular roundabout pattern and affixed to a roadway or ground surface at an intersection of vehicle roadways. Roundabouts can be formed in any desired diameter. In some embodiments, the modular blocks can have a trapezoidal plan shape laid out in concentric rings. The trapezoidal shaped blocks can be cut from a length of board having a constant width and thickness. The modular blocks can be provided as a kit of parts delivered to worksite at an intersection of vehicle roadways where a roundabout is desired. Splitter islands, sidewalks, and curbing of blocks having appropriate shapes can also be provided.

A distribution cabling tape comprises a resilient polymeric base sheet having a first major surface and a second major surface, the first major surface having a continuous lengthwise channel formed in a first portion thereof. The tape also includes an adhesive layer disposed on a second and third portion of the first major surface, the adhesive layer capable of adhering to a concrete or asphalt surface, such as a road, curb, or walkway.

A distribution cabling tape comprises a resilient polymeric base sheet having a first major surface and a second major surface, the first major surface having a continuous lengthwise channel formed in a first portion thereof. The tape also includes an adhesive layer disposed on a second and third portion of the first major surface, the adhesive layer capable of adhering to a concrete or asphalt surface, such as a road, curb, or walkway.

Road signal systems and methods for controlling road signals include a piezoelectric layer integrated with a surface that undergoes stresses with traffic passing over the surface. A power collection circuit is configured to collect and store power from the piezoelectric layer. One or more devices receive electrical power from the power collection circuit responsive to traffic passing over the surface.

Road signal systems and methods for controlling road signals include a piezoelectric layer integrated with a surface that undergoes stresses with traffic passing over the surface. A power collection circuit is configured to collect and store power from the piezoelectric layer. One or more devices receive electrical power from the power collection circuit responsive to traffic passing over the surface.

The described leveling lifter includes an engagement part embedded in a concrete slab, wherein the engagement part extends down to the base and contains a coupler component. The lifter may also include an actuator that is structured to engage the coupler within the concrete slab. The lifter also has a base configured under the engagement part. The base is configured to releasably couple to the concrete slab by projections set at a distance from one another on the base, the projections being configured to detach from the concrete slab in degrees upon engagement of the base by the actuator.

The described leveling lifter includes an engagement part embedded in a concrete slab, wherein the engagement part extends down to the base and contains a coupler component. The lifter may also include an actuator that is structured to engage the coupler within the concrete slab. The lifter also has a base configured under the engagement part. The base is configured to releasably couple to the concrete slab by projections set at a distance from one another on the base, the projections being configured to detach from the concrete slab in degrees upon engagement of the base by the actuator.