An automated rumble strip assembly includes a frame having a top surface configured to support a vehicle tire moving along the frame. The automated rumble strip assembly also includes a plurality of elongate members disposed within the frame, wherein each elongate member includes an elongate member housing, an internal carriage assembly disposed within the elongate member housing and moveable within the elongate member housing, and an actuator assembly coupled to the internal carriage configured to move the internal carriage relative to the elongate member housing.

An automated rumble strip assembly includes a frame having a top surface configured to support a vehicle tire moving along the frame. The automated rumble strip assembly also includes a plurality of elongate members disposed within the frame, wherein each elongate member includes an elongate member housing, an internal carriage assembly disposed within the elongate member housing and moveable within the elongate member housing, and an actuator assembly coupled to the internal carriage configured to move the internal carriage relative to the elongate member housing.

A barrier system includes a plurality of barriers that can be used to form a barrier wall. Each barrier includes a first panel at least partially bounding a cavity and a first leg assembly supporting the first panel in an elevated position. A plurality of spikes are removably disposed on the first panel. A flexible snare is disposed within the cavity of the first panel, the snare being secured to the plurality of spikes so that when the spikes are removed from the first panel, the snare is drawn away from the first panel by the spikes.

A barrier system includes a plurality of barriers that can be used to form a barrier wall. Each barrier includes a first panel at least partially bounding a cavity and a first leg assembly supporting the first panel in an elevated position. A plurality of spikes are removably disposed on the first panel. A flexible snare is disposed within the cavity of the first panel, the snare being secured to the plurality of spikes so that when the spikes are removed from the first panel, the snare is drawn away from the first panel by the spikes.

A selectively activated speed bump is placed on streets to slow down vehicles. The cover has a central part and lateral parts on both sides of the central part. An elevation movement mechanism for the cover is installed in a rectangular pit formed by a box. A shaft has a terminal end joined to pillow blocks inside the box and a plurality of cams, being flexible offset discs, along a length of the shaft. The cams turn to raise the cover to a higher level than the ground and continue to turn in order to return the cover to the same height of the ground. The speed bump slows vehicles on streets and on avenues.

A selectively activated speed bump is placed on streets to slow down vehicles. The cover has a central part and lateral parts on both sides of the central part. An elevation movement mechanism for the cover is installed in a rectangular pit formed by a box. A shaft has a terminal end joined to pillow blocks inside the box and a plurality of cams, being flexible offset discs, along a length of the shaft. The cams turn to raise the cover to a higher level than the ground and continue to turn in order to return the cover to the same height of the ground. The speed bump slows vehicles on streets and on avenues.

Methods, systems, and apparatus for controlling a speed regulator are described. A monitor detects a speed of a vehicle. A speed regulator controller configures a speed regulator based on the detected speed, the speed regulator being configurable to extend and retract.

Methods, systems, and apparatus for controlling a speed regulator are described. A monitor detects a speed of a vehicle. A speed regulator controller configures a speed regulator based on the detected speed, the speed regulator being configurable to extend and retract.

A roadway lane of a host vehicle is determined based on a sound from an impact between a tire of the host vehicle and a set of protrusions in a roadway. A communication is received from a target vehicle. The communication identifies a roadway lane of the target vehicle. The roadway lane of the host vehicle is compared to the roadway lane of the target vehicle. A vehicle subsystem is controlled in accordance with the communication based at least in part on whether the roadway lane of the host vehicle is the same as the roadway lane of the target vehicle.

An automated rumble strip assembly includes a frame having a top surface configured to support a vehicle tire moving along the frame. The automated rumble strip assembly also includes a plurality of elongate members, each elongate member having a top surface. The automated rumble strip assembly also includes an actuator assembly configured to move the elongate members from a first position where each of the top surfaces of the elongate members is flush with the top surface of the frame, to a second position where each of the top surfaces of the elongate members is recessed relative to the top surface of the frame.