A hazard alert system includes a vehicle that has a back side. A sign is removably coupled to said vehicle when the vehicle is parked on the side of a roadway. Thus, the sign may alert oncoming traffic to the vehicle. The sign includes an arrow. The sign is oriented in a selected manner such that the arrow points toward a selected side of the vehicle.

An intention signaling system for an autonomous vehicle (AV) can monitor sensor information indicating a situational environment of the AV, and detect an external entity based, at least in part, on the sensor data. The intention signaling system can generate an output to signal one of an intent of the AV or an acquiescence of the AV to the external entity.

This invention relates in general to the field of safety devices, and more particularly, but not by way of limitation, to systems and methods for providing advanced warning and risk evasion when hazardous conditions exist. In one embodiment, a vicinity monitoring unit is provided for monitoring, for example, oncoming traffic near a construction zone. In some embodiments, the vicinity monitoring unit may be mounted onto a construction vehicle to monitor nearby traffic and send a warning signal if hazardous conditions exist. In some embodiments, personnel tracking units may be worn by construction workers and the personnel tracking units may be in communication with the vicinity monitoring unit. In some embodiments, a base station is provided for monitoring activities taking place in or near a construction site including monitoring the locations of various personnel and vehicles within the construction site.

This invention relates in general to the field of safety devices, and more particularly, but not by way of limitation, to systems and methods for providing advanced warning and risk evasion when hazardous conditions exist. In one embodiment, a vicinity monitoring unit is provided for monitoring, for example, oncoming traffic near a construction zone. In some embodiments, the vicinity monitoring unit may be mounted onto a construction vehicle to monitor nearby traffic and send a warning signal if hazardous conditions exist. In some embodiments, personnel tracking units may be worn by construction workers and the personnel tracking units may be in communication with the vicinity monitoring unit. In some embodiments, a base station is provided for monitoring activities taking place in or near a construction site including monitoring the locations of various personnel and vehicles within the construction site.

A system and a method for monitoring route devices in a transportation network includes one or more processors to receive sensed traffic control device information from first vehicle systems in a transportation network formed from interconnected routes. The sensed traffic control device information indicates states of traffic control devised at intersections between the routes in the transportation network. The one or more processors determine whether the sensed traffic control device information conflicts with stored traffic control device information stored in a database accessible by the one or more processors. The one or more processors send one or more bulletins to one or more second vehicle systems to change movement of the one or more second vehicle systems responsive to determining that the sensed traffic control device information conflicts with the stored traffic control device information.

A computing device identifies a slow moving object and activates an alert signal a predetermined period of time when the slow moving object is identified. A sensor measurement is received from a sensor to compute a speed of travel of a moving object. When the computed speed is below a predefined speed threshold, an alert signal of an alert signal device mounted adjacent to the sensor is activated and the alert signal is deactivated when a predetermined period of time relative to a time of activation of the alert signal expires.

An system, method, and non-transitory computer readable medium for managing traffic at a worksite. The system includes a traffic control signal, a wireless interface, a mast, a support base, a wireless control device, and a base station for communicating between the wireless interface and the wireless control device. The method involves receiving input from the wireless control device, generating a control signal got the traffic control signals. The non-transitory computer readable medium is encoded with codes for directing a processor to carry out the method.

An system, method, and non-transitory computer readable medium for managing traffic at a worksite. The system includes a traffic control signal, a wireless interface, a mast, a support base, a wireless control device, and a base station for communicating between the wireless interface and the wireless control device. The method involves receiving input from the wireless control device, generating a control signal got the traffic control signals. The non-transitory computer readable medium is encoded with codes for directing a processor to carry out the method.

This invention relates in general to the field of safety devices, and more particularly, but not by way of limitation, to systems and methods for providing advanced warning and risk evasion when hazardous conditions exist. In one embodiment, a vicinity monitoring unit is provided for monitoring, for example, oncoming traffic near a construction zone. In some embodiments, the vicinity monitoring unit may be mounted onto a construction vehicle to monitor nearby traffic and send a warning signal if hazardous conditions exist. In some embodiments, personnel tracking units may be worn by construction workers and the personnel tracking units may be in communication with the vicinity monitoring unit. In some embodiments, a base station is provided for monitoring activities taking place in or near a construction site including monitoring the locations of various personnel and vehicles within the construction site.

This invention relates in general to the field of safety devices, and more particularly, but not by way of limitation, to systems and methods for providing advanced warning and risk evasion when hazardous conditions exist. In one embodiment, a vicinity monitoring unit is provided for monitoring, for example, oncoming traffic near a construction zone. In some embodiments, the vicinity monitoring unit may be mounted onto a construction vehicle to monitor nearby traffic and send a warning signal if hazardous conditions exist. In some embodiments, personnel tracking units may be worn by construction workers and the personnel tracking units may be in communication with the vicinity monitoring unit. In some embodiments, a base station is provided for monitoring activities taking place in or near a construction site including monitoring the locations of various personnel and vehicles within the construction site.