A detectable warning tile system has a tile base with an upper surface and a lower surface. The upper surface has a plurality of upward projections therefrom. The tile base has two side edges for alignment with corresponding side edges of other tiles, and front and rear edges. An area of the upper surface of the tile base is formed free of the detectable warnings and may include a trough into or over which a replaceable tile section may be placed. The tile base and/or replaceable tile section may be configured to receive one or more individually-installable detectable warnings.

A detectable warning tile system has a tile base with an upper surface and a lower surface. The upper surface has a plurality of upward projections therefrom. The tile base has two side edges for alignment with corresponding side edges of other tiles, and front and rear edges. An area of the upper surface of the tile base is formed free of the detectable warnings and may include a trough into or over which a replaceable tile section may be placed. The tile base and/or replaceable tile section may be configured to receive one or more individually-installable detectable warnings.

A reflective road device includes a translucent body and a reflective layer. The translucent body is made of a tempered transparent material and includes a base portion and a bump portion. The bump portion is integrally formed with the base portion with the bump portion being provided on the upper surface of the base portion. The area enclosed by the upper edge of the base portion is larger than the area enclosed by the lower edge of the bump portion. The bump portion is provided with an oval arc at the lower edge in an incident direction of light emitted from a light source. The reflective layer is provided on the outside surface of the base portion of the translucent body whereby the light emitted by the light source enters the translucent body through the bump portion and is reflected by the reflective layer and emitted by the translucent body toward the light source.

A reflective road device includes a translucent body and a reflective layer. The translucent body is made of a tempered transparent material and includes a base portion and a bump portion. The bump portion is integrally formed with the base portion with the bump portion being provided on the upper surface of the base portion. The area enclosed by the upper edge of the base portion is larger than the area enclosed by the lower edge of the bump portion. The bump portion is provided with an oval arc at the lower edge in an incident direction of light emitted from a light source. The reflective layer is provided on the outside surface of the base portion of the translucent body whereby the light emitted by the light source enters the translucent body through the bump portion and is reflected by the reflective layer and emitted by the translucent body toward the light source.

Bike lane delineators that separate bike and motor vehicle traffic lanes. The bike delineators may include reflective members, alternating colors and hollows.

Bike lane delineators that separate bike and motor vehicle traffic lanes. The bike delineators may include reflective members, alternating colors and hollows.

Technologies for communicating roadway information includes a plurality of roadway markers configured to propagate communications amongst each other. To do so, each roadway marker is configured to transmit communications to one or more other roadway markers. The communications may include sensor data generated by a sensor of a roadway marker. One or more roadway markers may transmit the sensor data to a roadway controller. Additionally or alternatively, the communication may include an alert message. A roadway marker may include a local alert device and be configured to activate the alert device in response to receiving an alert message. Additionally, one or more roadway markers may communicate with a roadway controller, a roadway traffic device, and/or an in-vehicle computing system of a vehicle to propagate roadway marker sensor data and/or alert messages. The roadway controller may be configured to control the roadway traffic devices, roadway makers, and/or communicate with remote computing devices.

Technologies for communicating roadway information includes a plurality of roadway markers configured to propagate communications amongst each other. To do so, each roadway marker is configured to transmit communications to one or more other roadway markers. The communications may include sensor data generated by a sensor of a roadway marker. One or more roadway markers may transmit the sensor data to a roadway controller. Additionally or alternatively, the communication may include an alert message. A roadway marker may include a local alert device and be configured to activate the alert device in response to receiving an alert message. Additionally, one or more roadway markers may communicate with a roadway controller, a roadway traffic device, and/or an in-vehicle computing system of a vehicle to propagate roadway marker sensor data and/or alert messages. The roadway controller may be configured to control the roadway traffic devices, roadway makers, and/or communicate with remote computing devices.

A traffic calming system is provided that can remain in place on the ground without additional attachment while a vehicle grazes or traverses it. The traffic calming system includes a variety of modular units that can be laid out in any desired pattern as needed to direct a flow of traffic. The modular units can be connected together in an arrangement such as for a roundabout or splitter island. The modular units can be arranged individually as lane markers, such as for a bicycle lane or pedestrian lane, or to outline a roundabout or splitter island.

A traffic calming system is provided that can remain in place on the ground without additional attachment while a vehicle grazes or traverses it. The traffic calming system includes a variety of modular units that can be laid out in any desired pattern as needed to direct a flow of traffic. The modular units can be connected together in an arrangement such as for a roundabout or splitter island. The modular units can be arranged individually as lane markers, such as for a bicycle lane or pedestrian lane, or to outline a roundabout or splitter island.