A portable traffic light assembly includes a traffic sign that is manipulated by a person directing traffic. A plurality of lenses is each coupled to the traffic sign and each of the lenses has indicia printed thereon. A plurality of light emitters is each coupled to the traffic sign to emit light outwardly therefrom. Each of the light emitters is positioned behind a respective one of the lenses to enhance visibility of the respective lenses when the light emitters are turned on. A pole is coupled to the traffic sign and a plurality of control buttons is each movably coupled to the pole. Each of the control buttons turns a respective light emitter on and off. In this way the light emitters can be individually turned on for directing traffic.

A portable traffic light assembly includes a traffic sign that is manipulated by a person directing traffic. A plurality of lenses is each coupled to the traffic sign and each of the lenses has indicia printed thereon. A plurality of light emitters is each coupled to the traffic sign to emit light outwardly therefrom. Each of the light emitters is positioned behind a respective one of the lenses to enhance visibility of the respective lenses when the light emitters are turned on. A pole is coupled to the traffic sign and a plurality of control buttons is each movably coupled to the pole. Each of the control buttons turns a respective light emitter on and off. In this way the light emitters can be individually turned on for directing traffic.

A computer system includes a memory and a processor. The processor executes instructions to perform steps that include receiving a message from an asset tracking device, the message comprising position information for the asset tracking device and a traffic control device type for a traffic control device that the asset tracking device is attached to. The processor uses the received message to determine a road that the traffic control device is positioned on and a location of the traffic control device along the road.

An alerting system to be applied to a vehicle configured to execute driving assistance control based on a recognition result from a recognition sensor includes: one or more memories configured to store blind area information indicating a blind area around a recognition range recognized by the recognition sensor; and one or more processors configured to acquire a vehicle condition including at least one of a vehicle speed, or a door open or closed state of the vehicle, start a rendering process for rendering the blind area on a road surface around the vehicle in response to satisfaction of a start condition by the vehicle condition, and execute the rendering process by using a light emitting device.

An exemplary method and system is disclosed that facilitates a readily-re-deployable and self-enclosed geofencing and proximity-based intrusion sensing and alerting system in a roadway or construction work zone. The sensing and alerting system is configured in the form factor of a safety cone, barricade or drum to sense and uses acoustic-echoes or LiDAR-based sensing to detect intruders that are in proximity to the sensing and alerting system to generate a siren or loud audible alert, as well as flashing lights, to warn workers of such intrusion.

A method for controlling traffic by a traffic control system includes transmitting, to a first traffic control vehicle, a first message requesting the first traffic control vehicle to autonomously navigate to a location corresponding to a traffic incident. The method also includes monitoring a location of the first traffic control vehicle based on receiving location information from the first traffic control vehicle. The method also includes transmitting, to the first traffic control vehicle, first information to be displayed via a first notification device integrated with the first traffic control vehicle based on the location information corresponding to the location of the traffic incident. The method still further includes transmitting, to the first traffic control vehicle after a period of time, a request to navigate away from the location of the traffic incident.

Disclosed is a front obstacle alerting system comprising an obstacle-side signal emitting device and a vehicle-side alerting device, wherein the obstacle-side signal emitting device is a signal emitting element of a front obstacle and emits a directional ultrasonic wave toward a rear side of the front obstacle, and the vehicle-side alerting device is disposed in or on a vehicle and correspondingly outputs an alerting signal according to the directional ultrasonic wave received from a front side of the vehicle.

A method for controlling traffic by a traffic control system includes transmitting, to a first traffic control vehicle, a first message requesting the first traffic control vehicle to autonomously navigate to a location corresponding to a traffic incident. The method also includes monitoring a location of the first traffic control vehicle based on receiving location information from the first traffic control vehicle. The method also includes transmitting, to the first traffic control vehicle, first information to be displayed via a first notification device integrated with the first traffic control vehicle based on the location information corresponding to the location of the traffic incident. The method still further includes transmitting, to the first traffic control vehicle after a period of time, a request to navigate away from the location of the traffic incident.

A traffic signal system and a traffic signal deployment method that enable a traffic signal to be disposed quickly are provided. A traffic signal system includes multiple drones each of which can hold a traffic signal, and a server that can communicate with the multiple drones, in which the server includes a position information acquisition unit that acquires position information of a target point, the target point being a place where it is necessary to dispose the traffic signal, and the drone includes: a flight control unit that controls flight of the drone holding the traffic signal so that it moves to the target point and hovers at the target point based on the position information; and a light control unit that controls lighting of the traffic signal so that timings of the lighting of the multiple traffic signals are synchronized with each other.

A traffic signal system and a traffic signal deployment method that enable a traffic signal to be disposed quickly are provided. A traffic signal system includes multiple drones each of which can hold a traffic signal, and a server that can communicate with the multiple drones, in which the server includes a position information acquisition unit that acquires position information of a target point, the target point being a place where it is necessary to dispose the traffic signal, and the drone includes: a flight control unit that controls flight of the drone holding the traffic signal so that it moves to the target point and hovers at the target point based on the position information; and a light control unit that controls lighting of the traffic signal so that timings of the lighting of the multiple traffic signals are synchronized with each other.