A vehicle may include a conductive housing surrounding an antenna and defining an aperture having a size at least equal to a wavelength of signals radiated by the antenna. A controller may be configured to orient the conductive housing to direct the aperture at a direction of travel to guide electromagnetic radiation from the antenna. The controller may orient the conductive housing in response to receiving a cooperative adaptive cruise control signal from an established platoon of vehicles.

A vehicle may include a conductive housing surrounding an antenna and defining an aperture having a size at least equal to a wavelength of signals radiated by the antenna. A controller may be configured to orient the conductive housing to direct the aperture at a direction of travel to guide electromagnetic radiation from the antenna. The controller may orient the conductive housing in response to receiving a cooperative adaptive cruise control signal from an established platoon of vehicles.

A system determines traffic information. The system contains a terminal having a position determination device for determining a position of the vehicle, a storage device for storing reference positions defined by location coordinates, and a processor which works together with the position determining device and the storage device. The processor compares a specific position of the vehicle with stored reference positions to determine whether the vehicle has passed a reference position. A reference position is defined by a safety line extending through the location coordinates thereof. The processor also determines whether the vehicle has traversed a safety line and evaluates the traversing of a determined safety line as the vehicle passes the reference position defined by the safety line. Therefore, the system can determine a position in a simple and reliable manner, including in an inner-city road network.

A system determines traffic information. The system contains a terminal having a position determination device for determining a position of the vehicle, a storage device for storing reference positions defined by location coordinates, and a processor which works together with the position determining device and the storage device. The processor compares a specific position of the vehicle with stored reference positions to determine whether the vehicle has passed a reference position. A reference position is defined by a safety line extending through the location coordinates thereof. The processor also determines whether the vehicle has traversed a safety line and evaluates the traversing of a determined safety line as the vehicle passes the reference position defined by the safety line. Therefore, the system can determine a position in a simple and reliable manner, including in an inner-city road network.

A method of avoiding collisions and preempting traffic signals, including the steps of predicting a first likely travel route of a first vehicle along established roadways; predicting a second likely travel route of a second vehicle along the established roadways; preempting a normal operation of at least one traffic signal at an intersection of roadways along at least one of the first likely travel route and the second likely travel route allowing at least one of the first vehicle and the second vehicle to traverse the intersection; and determining whether both the first vehicle and the second vehicle will be at the intersection within a predefined time interval of each other.

A method of avoiding collisions and preempting traffic signals, including the steps of predicting a first likely travel route of a first vehicle along established roadways; predicting a second likely travel route of a second vehicle along the established roadways; preempting a normal operation of at least one traffic signal at an intersection of roadways along at least one of the first likely travel route and the second likely travel route allowing at least one of the first vehicle and the second vehicle to traverse the intersection; and determining whether both the first vehicle and the second vehicle will be at the intersection within a predefined time interval of each other.

An integrated pedestrian access system comprising of wireless push buttons adapted to transmit and receive wireless signals and receivers connected to pedestrian crosswalk signal systems, wherein said one or more receivers are configured to communicate with the wireless push buttons through wireless signals, communicate among the receivers, determine whether source device from which a request for registering a pedestrian signal is received through the said communication is the wireless push button or the receivers, determine status of pedestrian signal based on signals received from the pedestrian signal system, register request for pedestrian crosswalk signal if walk signal of the pedestrian signal is not on in the desired direction as per the status of pedestrian signal and provide acknowledgement corresponding to the status of pedestrian signal through the said source device.

The invention relates to a method for influencing a traffic light system provided with an evaluating computer by a vehicle, in particular in public transportation, the vehicle sending a data telegram to the evaluating computer at a sending position in order to request a green phase and the data telegram and/or the sending position depending on predefined reporting points, characterized in that the data telegram is transmitted to the evaluating computer by means of a packet-oriented, in particular IP-based (Internet-Protocol-based) radio network and in that the sending position is moved forward according to the current speed of the vehicle and a maximum assumed data telegram propagation time as the vehicle approaches a reporting point.

The invention relates to a method for influencing a traffic light system provided with an evaluating computer by a vehicle, in particular in public transportation, the vehicle sending a data telegram to the evaluating computer at a sending position in order to request a green phase and the data telegram and/or the sending position depending on predefined reporting points, characterized in that the data telegram is transmitted to the evaluating computer by means of a packet-oriented, in particular IP-based (Internet-Protocol-based) radio network and in that the sending position is moved forward according to the current speed of the vehicle and a maximum assumed data telegram propagation time as the vehicle approaches a reporting point.

The present invention relates to a roadside control apparatus 5 capable of wirelessly communicating with a mobile communication apparatus 42. This roadside control apparatus 5 includes: a receiving unit 51 configured to receive positional information of a mobile body (e.g., vehicle 43) equipped with the mobile communication apparatus 42, from the mobile body; a control unit 63 configured to analyze, on the basis of the received positional information, present states of at least one of signal control and road traffic at an intersection Jk, and generate output information based on a result of the analysis; and transmission units 51 to 53 configured to transmit the generated output information to external equipment.