A road marker device comprising: a housing comprising a flat top surface and configured to be inserted in a road such that the flat top surface is leveled with the road surface; a light source housing operatively coupled with the housing, the light source housing comprising at least one aperture protruding from the flat top surface; at least one light source installed in the light source housing, wherein the at least one light source is visible to users of the road through the at least one aperture; and a tilt mechanism installed in the housing and operatively coupled with the light source housing, the tilt mechanism configured to allow descent of the light source housing below the road surface once a pressure is applied on the light source housing.

A road marker device comprising: a housing comprising a flat top surface and configured to be inserted in a road such that the flat top surface is leveled with the road surface; a light source housing operatively coupled with the housing, the light source housing comprising at least one aperture protruding from the flat top surface; at least one light source installed in the light source housing, wherein the at least one light source is visible to users of the road through the at least one aperture; and a tilt mechanism installed in the housing and operatively coupled with the light source housing, the tilt mechanism configured to allow descent of the light source housing below the road surface once a pressure is applied on the light source housing.

A road marker device comprising: a housing comprising a flat top surface and configured to be inserted in a road such that the flat top surface is leveled with the road surface; a light source housing operatively coupled with the housing, the light source housing comprising at least one aperture protruding from the flat top surface; at least one light source installed in the light source housing, wherein the at least one light source is visible to users of the road through the at least one aperture; and a tilt mechanism installed in the housing and operatively coupled with the light source housing, the tilt mechanism configured to allow descent of the light source housing below the road surface once a pressure is applied on the light source housing.

A road marker device comprising: a housing comprising a flat top surface and configured to be inserted in a road such that the flat top surface is leveled with the road surface; a light source housing operatively coupled with the housing, the light source housing comprising at least one aperture protruding from the flat top surface; at least one light source installed in the light source housing, wherein the at least one light source is visible to users of the road through the at least one aperture; and a tilt mechanism installed in the housing and operatively coupled with the light source housing, the tilt mechanism configured to allow descent of the light source housing below the road surface once a pressure is applied on the light source housing.

A road marker device comprising: a housing comprising a flat top surface and configured to be inserted in a road such that the flat top surface is leveled with the road surface; a light source housing operatively coupled with the housing, the light source housing comprising at least one aperture protruding from the flat top surface; at least one light source installed in the light source housing, wherein the at least one light source is visible to users of the road through the at least one aperture; and a tilt mechanism installed in the housing and operatively coupled with the light source housing, the tilt mechanism configured to allow descent of the light source housing below the road surface once a pressure is applied on the light source housing.

A road marker device comprising: a housing comprising a flat top surface and configured to be inserted in a road such that the flat top surface is leveled with the road surface; a light source housing operatively coupled with the housing, the light source housing comprising at least one aperture protruding from the flat top surface; at least one light source installed in the light source housing, wherein the at least one light source is visible to users of the road through the at least one aperture; and a tilt mechanism installed in the housing and operatively coupled with the light source housing, the tilt mechanism configured to allow descent of the light source housing below the road surface once a pressure is applied on the light source housing.

According to various embodiments, an electronic device for classifying a road surface using a sound signal and a road surface classification method using the same are disclosed. In addition, a device and method for managing a road surface through road surface classification are disclosed. Meanwhile, a method for installing an infrastructure for implementing a road surface classification method is disclosed. Other various embodiments are possible.

A traffic control system and method in which a sensor and processor interact with at least one road module to illuminate and/or cause to flash in response to predetermined road surface and/or traffic conditions. The system and method can be configured to interact with vehicles, including autonomous vehicles, traveling on the road in which the road module(s) are embedded. The road surface and/or traffic conditions include an EMS vehicle located in proximity to a fire hydrant, vehicle located in proximity to a bus stop, a vehicle located in proximity to an intersection with a bicycle and/or pedestrian path intersecting with said road in which said road modules and/or one or more light strips are embedded.

A traffic control system and method in which a sensor and processor interact with at least one road module to illuminate and/or cause to flash in response to predetermined road surface and/or traffic conditions. The system and method can be configured to interact with vehicles, including autonomous vehicles, traveling on the road in which the road module(s) are embedded. The road surface and/or traffic conditions include an EMS vehicle located in proximity to a fire hydrant, vehicle located in proximity to a bus stop, a vehicle located in proximity to an intersection with a bicycle and/or pedestrian path intersecting with said road in which said road modules and/or one or more light strips are embedded.

A system for illuminating a carriageway in a case of fog includes a road safety barrier arranged along the carriageway, at least one fog density detecting device arranged along the road safety barrier, and a plurality of light sources borne by the road safety barrier, distributed along the road safety barrier, and oriented for each to emit a light beam having a direction that is transversal to an extension axis of the road safety barrier so as to illuminate signage on the carriageway. A control unit that is connected to the light sources and to the fog density detecting device is configured to activate the light sources when the fog density detecting device detects a fog density value of above a threshold value.