Abstract: A computer can execute instructions to collect vehicle sensor data from sensors on a vehicle. Based on a determination that the vehicle is within a threshold distance of a road infrastructure geofence indicating a presence of a target road infrastructure element, the instructions further include to identify selected data from the vehicle sensor data; and transmit the selected data to a remote server.

Abstract: An infrastructure system includes at least one sensor, a transceiver, and a computer communicatively coupled to the at least one sensor and to the transceiver. The computer is programmed to receive data from the at least one sensor indicating respective locations and motions of objects in an environment surrounding the at least one sensor; in response to one of (a) the data from the at least one sensor or (b) a request from a user, generate a virtual traffic marker at a first location in the environment; and instruct the transceiver to broadcast the virtual traffic marker to vehicles in the environment. The first location is based on the data from the at least one sensor, and the virtual traffic marker is data including the first location and traffic instructions corresponding to the first location.

Abstract: An infrastructure system includes at least one sensor, a transceiver, and a computer communicatively coupled to the at least one sensor and to the transceiver. The computer is programmed to receive data from the at least one sensor indicating respective locations and motions of objects in an environment surrounding the at least one sensor; in response to one of (a) the data from the at least one sensor or (b) a request from a user, generate a virtual traffic marker at a first location in the environment; and instruct the transceiver to broadcast the virtual traffic marker to vehicles in the environment. The first location is based on the data from the at least one sensor, and the virtual traffic marker is data including the first location and traffic instructions corresponding to the first location.

Abstract: An infrastructure component includes a sensor, a transmitter, and a computer communicatively coupled to the sensor and to the transmitter. The computer is programmed to, in response to receiving data from the sensor indicating an object approaching a predesignated zone, determine an estimated time until the object reaches the predesignated zone; and then instruct the transmitter to broadcast a message to nearby vehicles, the message including an identifier of the predesignated zone and the estimated time.

Abstract: A dedicated short range radar system is provided for use with a GPS system. The radar system includes a transmitter which transmits a microwave radio signal. A receiver is coupled to a horizontally scanning receiver antenna array which receives an echo, if present, from the radio signal transmitted by the transmitter. The radio receiver then generates an output signal representative of the echo. A control circuit then receives the output signal from the antenna array as well as the output signal from the GPS system. The control circuit then varies the mode of operation of the receiver and/or the transmitter as a function of the type of roadway for optimal radar performance.

Abstract: A dedicated short range radar system is provided for use with a GPS system. The radar system includes a transmitter which transmits a microwave radio signal. A receiver is coupled to a horizontally scanning receiver antenna array which receives an echo, if present, from the radio signal transmitted by the transmitter. The radio receiver then generates an output signal representative of the echo. A control circuit then receives the output signal from the antenna array as well as the output signal from the GPS system. The control circuit then varies the mode of operation of the receiver and/or the transmitter as a function of the type of roadway for optimal radar performance.