An installation for the maintenance of road surfaces, or located on several sections of road, on the median line of the road or on one of its sides, which installation operates according to meteorological parameters measured in real time by the weather station associated with each section or during the issuing of a warning code in the geographical area of each section and which is composed of an air compressor, a compressed air tank, one or more reservoirs for the intervention fluids, connected by connections to a pump unit, controlled by a GSM module with remote relay according to the commands of a server, the fluids circulating through connections and pipe sections mounted underground in the roadway, compression collars being arranged on each pipe section and connected to spraying sub-assemblies consisting of direction valves, flow restrictors, movable quick couplers and nozzles, the installation allowing automated actions based on the interpretation of meteorological data received from weather stations.

A high-pressure cleaning device includes a carrier, a power unit, a valve assembly, a high-pressure water gun and a floor brush. The power unit is mounted on the carrier. The power unit includes a pump. The valve assembly is mounted on the carrier. The valve assembly includes a liquid inlet, a first liquid outlet and a second liquid outlet. The liquid inlet is in communication with an outlet of the pump. The high-pressure water gun is in communication with the first liquid outlet through a pipeline. The floor brush is mounted on a bottom of the carrier. The floor brush includes a nozzle assembly. The nozzle assembly is in communication with the second liquid outlet through a pipeline. The valve assembly is configured to be switchable between at least two of the following positions, include position one and position two.

Methods of treating bitumen-containing surfaces to improve surface friction are described. The method may include applying a non-caustic composition to the bitumen-containing surface, wherein the non-caustic composition is capable of dissolving components of the bitumen-containing surface, such as tar and oil. Following application of the non-caustic composition to the bitumen-containing surface, the method may further include steps of spraying the bitumen-containing surface with water and removing loose or loosened debris from the bitumen-containing surface. In some embodiments, water is sprayed at ultra high pressure, and in some embodiments, debris is removed through the use of cyclonic airflow.

The present disclosure may provide a device for automatically collecting and transporting waste on the road that automates the collection of trash and waste abandoned on the road through the convergence technology of software and hardware to improve the speed of collection of large trash or waste, removes the causes and risks of accidents that may occur during manual collection work on existing roads, and does not require a separate operator to operate the collection mechanism, thereby reducing labor costs.

An apparatus for rejuvenating markings on roads includes at least one cleaning unit, a collection tank, a vacuum member, and a connection point. At least one cleaning unit includes a frame, at least one skirt member, at least one spray connection, and a wand member. The skirt member is coupled to an external surface of the frame. The spray connection is disposed at least partially on a top surface of the frame, and the wand member is coupled to the underside of the spray connection. The collection tank includes a plurality of entry points and at least one vacuum connection. Each entry point is configured to mate with a hose. The vacuum member works with the collection tank such that material is vacuumed from underneath the cleaning unit into the collection tank and then into a storage tank. The connection point is configured for attachment to a maneuvering member.

The device includes two opposing lateral wings forming the right and left sides of the scraping device. Each wing includes an upper section through which the wing is attached to the central support about a vertical pivot axis, and a bottom section that is pivotable with respect to the upper section about a first horizontal pivot axis. Each wing can follow the unevenness of the roadway surface and may also include parts that can pivot backwards in case of a frontal impact with an obstacle. The scraping device offers a very high degree of versatility and can clean various kinds of roadway surfaces with an unprecedented level of efficiency.

The device includes two opposing lateral wings forming the right and left sides of the scraping device. Each wing includes an upper section through which the wing is attached to the central support about a vertical pivot axis, and a bottom section that is pivotable with respect to the upper section about a first horizontal pivot axis. Each wing can follow the unevenness of the roadway surface and may also include parts that can pivot backwards in case of a frontal impact with an obstacle. The scraping device offers a very high degree of versatility and can clean various kinds of roadway surfaces with an unprecedented level of efficiency.