A traffic intersection monitoring system and method to ensure a traffic signal is viewable by vehicles, bicyclists, and pedestrians, by measuring the color light intensity of the signal light, and monitoring the orientation of the traffic signal light. Each phase of color is timed and coordinated with traffic counters to generate a real-time status of predicted future traffic signal light color with corresponding traffic volume. The predicted status and traffic counts are published for the use of any applicable subscriber of the traffic intersection monitoring system.

A vehicle-vehicle communication system performs wireless communication between multiple vehicles each having an in-vehicle communication apparatus that transmits and receives information using a wireless signal. The vehicle-vehicle communication system includes a roadside communication apparatus including a roadside reception unit receiving information transmitted by the in-vehicle communication apparatus using a wireless signal and a roadside transmission unit transmitting the information received by the roadside reception unit using a wireless signal, and relays communication between multiple vehicles. The in-vehicle communication apparatus includes a vehicle-side reception unit that receives information wirelessly transmitted by an in-vehicle communication apparatus mounted in another vehicle and information wirelessly transmitted by a roadside communication apparatus; a determination unit determines whether or not the information received by the vehicle-side reception unit is needed; and an information processing unit performs information processing based on information determined by the determination unit as being needed.

Technologies and techniques for quality determination for a traffic system. First traffic parameter data is acquired from the traffic system, indicative of a parameter of the traffic system. Second traffic parameter data is acquired, indicative of another parameter of the traffic system, wherein the second traffic parameter data originate from a plurality of traffic participants. The parameter from the first traffic parameter data and second traffic parameter are obtained, wherein the parameter obtained from the first traffic parameter data is compared to the parameter obtained from the second traffic parameter data in order to determine the quality of the first traffic parameter data.

Technologies and techniques for quality determination for a traffic system. First traffic parameter data is acquired from the traffic system, indicative of a parameter of the traffic system. Second traffic parameter data is acquired, indicative of another parameter of the traffic system, wherein the second traffic parameter data originate from a plurality of traffic participants. The parameter from the first traffic parameter data and second traffic parameter are obtained, wherein the parameter obtained from the first traffic parameter data is compared to the parameter obtained from the second traffic parameter data in order to determine the quality of the first traffic parameter data.

The present disclosure is directed to a traffic signal apparatus communication system and methods of communicating traffic information to vehicles using same. The traffic signal apparatus communication system includes a traffic signal apparatus for providing a message to a vehicle. The apparatus includes at least one spatially encoded marker, and the vehicle is configured to receive returns of a radar signal from the spatially-encoded marker. At least one controller of the vehicle is configured to determine the message encoded by the spatially-encoded marker based on the returns and to control the vehicle based on the message. The message may include a value indicating a time to a transition of a new state of the traffic signal apparatus, where the new state includes emission of light from one of a first light source, a second light source, or a third light source of the traffic signal apparatus.

The present invention relates to a novel crosswalk light device. The device is designed to ensure that a crosswalk is highly visible during nighttime and other lowlight hours of the day to prevent accidents. The device comprises an LED floodlight mounted on top of a pedestrian crosswalk signal. The light illuminates the crosswalk area during the walking phase of the crosswalk. The light is wired through a series of relays and a capacitor to hold steady voltage. Accordingly, the device maintains an optimal level of safety for both pedestrians and motorists.

The present disclosure includes systems and methods for controlling the lane positions of a plurality of vehicles to reduce roadway wear. At least one controller is configured to receive information regarding a reference that may indicate a lane boundary. The controller determines a lane position offset from the reference, where the offset may be randomly selected or deterministically determined with an algorithm. The at least one controller is further configured to assign the lane position offset to one vehicle of a group of vehicles so that the assigned offset is different from the lane position offsets of the other vehicles. The assignment of different lane position offsets distributes wear across the lane of the roadway.

An on-board unit (OBU) of a vehicle receives one or more data messages indicative of intersection geometry for an upcoming intersection along a roadway being traversed by the vehicle and traffic control status of a traffic control of the intersection. An outbound direction for the vehicle through the intersection is identified. A first traffic message is sent to preempt the traffic control to allow the vehicle to perform a maneuver to traverse the intersection in the outbound direction. The maneuver is indicated as complete and a second traffic message is sent to discontinue the preempt of the traffic control.

A head up display system of a vehicle includes: a communication module configured to receive a period until a traffic signal of an intersection of roads will change from a first state to a second state; a distance module configured to, based on the period and a present speed of the vehicle, determine a distance in front of the vehicle where the vehicle will be when the traffic signal transitions from the first state to the second state; a light source configured to, via a windshield of the vehicle, generate a virtual display that is visible within a passenger cabin of the vehicle; and a display control module configured to, based on the distance, control the light source to include, in the virtual display, a visual indicator of a location in a path of the vehicle where the traffic signal will transition from the first state to the second state.

A head up display system of a vehicle includes: a communication module configured to receive a period until a traffic signal of an intersection of roads will change from a first state to a second state; a distance module configured to, based on the period and a present speed of the vehicle, determine a distance in front of the vehicle where the vehicle will be when the traffic signal transitions from the first state to the second state; a light source configured to, via a windshield of the vehicle, generate a virtual display that is visible within a passenger cabin of the vehicle; and a display control module configured to, based on the distance, control the light source to include, in the virtual display, a visual indicator of a location in a path of the vehicle where the traffic signal will transition from the first state to the second state.