A support layer for supporting an artificial turf assembly. The support layer being formed of a polymeric foam, preferably having a density of between 20 and 70 grams per liter, such as a polyolefin foam; and having an upper side and a lower side, wherein in use the support layer has been placed with the lower side thereof on a base surface and supports, on the upper side thereof, the artificial turf assembly, the support layer including a plurality of through drainage holes extending from the upper side to the lower side for allowing liquid such as rain water to flow via the plurality of drainage holes from the upper side to the lower side, and also including a plurality of channels at the lower side for allowing liquid such as rain water to flow through the channels along the lower side, wherein each of said plurality of drainage holes debouches into one of the plurality of channels. The support layer is further included in an artificial turf system, that includes an artificial turf assembly with the support layer supported on a base surface such as a layer of sand, wherein the support layer forms, at the upper sides thereof, a closed support surface supporting the artificial turf assembly.

A support layer for supporting an artificial turf assembly. The support layer being formed of a polymeric foam, preferably having a density of between 20 and 70 grams per liter, such as a polyolefin foam; and having an upper side and a lower side, wherein in use the support layer has been placed with the lower side thereof on a base surface and supports, on the upper side thereof, the artificial turf assembly, the support layer including a plurality of through drainage holes extending from the upper side to the lower side for allowing liquid such as rain water to flow via the plurality of drainage holes from the upper side to the lower side, and also including a plurality of channels at the lower side for allowing liquid such as rain water to flow through the channels along the lower side, wherein each of said plurality of drainage holes debouches into one of the plurality of channels. The support layer is further included in an artificial turf system, that includes an artificial turf assembly with the support layer supported on a base surface such as a layer of sand, wherein the support layer forms, at the upper sides thereof, a closed support surface supporting the artificial turf assembly.

Various embodiments of a system for monitoring drainage of a permeable pavement system are provided as well as various exemplary installation scenarios. In particular, embodiments of a permeable (or pervious) pavement management platform are disclosed herein. In embodiments, the pavement management platform provides a service that allows the user to determine vacuum maintenance needs for permeable (or pervious) pavement systems. Advantages of the platform include: subscription-based asset management platform as a service (PaaS), customized off-the-shelf water-level sensors, off-the-shelf tipping-bucket rain gauge, observation well installation consistent with industry standards, can be implemented in residential, commercial, municipal, county, and state systems, lithium-ion battery powered sensor, LoRA sensor to hub data transmission network, cellular data transmission from hub, electrical power for cellular data transmission hub (can be solar panel powered), real-time dashboarding of surface runoff storage, real-time dashboarding of ground water recharge rate, and permeability (clogging) threshold alerts, among others.

An interlocking tile includes a top surface, a bottom surface, and marginal faces disposed along a perimeter of the top surface. The tile also includes at least one male coupler disposed on a first marginal face and at least one female coupler extending from the bottom surface and disposed on a second marginal face. The at least one female coupler includes an arm, the arm comprising a first notch for engaging with a corresponding male coupler of an adjacent tile at a first position, and a second notch for engaging with the corresponding male coupler of the adjacent tile at a second position.

Disclosed is a multifunctional synthetic resin block for roads. The synthetic resin block includes a water permeable sheet configured as a synthetic resin block having a flat sheet shape so as to be laid on a ground, a block frame configured as a synthetic resin body taking a form of a rectangular frame, which is divided into multiple rectangular areas each having open top and bottom sides, so as to be installed on the upper surface of the water permeable sheet, the rectangular areas being filled with filler stones, and multiple corrugated plates each configured as a synthetic resin having a rectangular plate shape and arranged so that corrugations thereof are oriented perpendicular to each other so as to cover the rectangular areas of the block frame. The synthetic resin block provides almost all functions, such as a rainwater retention function, water permeation function, and anti-slippage function, at low cost.

A modular cell that may be used with other cells to form a matrix under a load bearing feature, the cell being a single piece molding that supports a compressive load placed thereon, the molding including a void space defined within: a skirt shaped support member defining a substantially planar surface with an opening therein; and at least one leg integral to and extending from the support member. The cell further includes at least one separate linking member that releasably links together multiple cells to form a matrix of cells. The cells may be linked together vertically and/or horizontally. The cell and matrix include greater load bearing capacity and rigidity through aligned legs to carry the weight as well as interlinking members that act to share the load among the various cells. The design also requires less material hence is cheaper to produce. The void space is also easily accessed hence allowing for easy access, filling and laying of utility lines where needed.

A support layer for supporting an artificial turf assembly. The support layer being formed of a polymeric foam, preferably having a density of between 20 and 70 grams per liter, such as a polyolefin foam; and having an upper side and a lower side, wherein in use the support layer has been placed with the lower side thereof on a base surface and supports, on the upper side thereof, the artificial turf assembly, the support layer including a plurality of through drainage holes extending from the upper side to the lower side for allowing liquid such as rain water to flow via the plurality of drainage holes from the upper side to the lower side, and also including a plurality of channels at the lower side for allowing liquid such as rain water to flow through the channels along the lower side, wherein each of said plurality of drainage holes debouches into one of the plurality of channels. The support layer is further included in an artificial turf system, that includes an artificial turf assembly with the support layer supported on a base surface such as a layer of sand, wherein the support layer forms, at the upper sides thereof, a closed support surface supporting the artificial turf assembly.

A modular tile is disclosed configured to interlock with multiple tiles to form a modular floor covering over a floor. The tile includes improved grip and bounce characteristics. The tile may include an upper contact surface having rib with top edges that are sharp. Protrusions may extend from the upper contact surface to provide grip and increase ball bounce performance. The tile may be made of a composite of rigid plastic and rubber to improper bounce characteristics, including by increasing the degree to which the tile conforms with a subfloor.

Various embodiments of a system for monitoring drainage of a permeable pavement system are provided as well as various exemplary installation scenarios. In particular, embodiments of a permeable (or pervious) pavement management platform are disclosed herein. In embodiments, the pavement management platform provides a service that allows the user to determine vacuum maintenance needs for permeable (or pervious) pavement systems. Advantages of the platform include: subscription-based asset management platform as a service (PaaS), customized off-the-shelf water-level sensors, off-the-shelf tipping-bucket rain gauge, observation well installation consistent with industry standards, can be implemented in residential, commercial, municipal, county, and state systems, lithium-ion battery powered sensor, LoRA sensor to hub data transmission network, cellular data transmission from hub, electrical power for cellular data transmission hub (can be solar panel powered), real-time dashboarding of surface runoff storage, real-time dashboarding of ground water recharge rate, and permeability (clogging) threshold alerts, among others.

An impact-absorbing assembly includes a covering layer being one or more of artificial turf, rubber mats, polymer mats, short pile carpeting, particulate infill, wood chips, and ground rubber chips. Also included is a layer of underlayment panels positioned beneath the covering layer. The panels have a panel section with a plurality of drain holes formed therethrough. A top surface of the panels is configured to support the covering layer. A bottom surface of the panels has a plurality of bottom projections that cooperate to define bottom channels suitable to permit water flow across the bottom surface, the bottom channels being in fluid communication with the panel drain holes. The bottom projections define a first spring rate characteristic that is part of a first stage and a second spring rate characteristic is part of a second stage, the first stage having a smaller volume of material than the second stage.