Abstract: A preferential control cancel unit includes: a determination unit configured to determine whether or not a vehicle approaching an intersection is an execution target of preferential control for preferential passage through the intersection; and a control unit configured to cause execution of the preferential control to be canceled in a case where the vehicle is determined to be the execution target and a predetermined condition is satisfied.

Abstract: A preferential control cancel unit includes: a determination unit configured to determine whether or not a vehicle approaching an intersection is an execution target of preferential control for preferential passage through the intersection; and a control unit configured to cause execution of the preferential control to be canceled in a case where the vehicle is determined to be the execution target and a predetermined condition is satisfied.

Abstract: The present invention relates to a device (roadside relay device 2) configured to generate a traffic index used for traffic signal control. This device includes: a storage unit 24 configured to store therein area information on a coordinate system, the area information forming a predetermined area on a road; a communication unit 21 configured to receive probe information S5 including a vehicle position and temporal information of a traveling vehicle 5; and a control unit 23 configured to generate the traffic index on the basis of the area information and the probe information S5.

Abstract: 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.

Abstract: A roadside communication device having a data relay function includes a receiving unit that receives mobile object data whose generator is a mobile object; a relay unit capable of relaying the mobile object data, the relaying involving a thinning process of an amount of data; and a transmitting unit that transmits thinning information about an execution status of the thinning process to an external device.

Abstract: The present invention relates to a device (roadside relay device 2) configured to generate a traffic index used for traffic signal control. This device includes: a storage unit 24 configured to store therein area information on a coordinate system, the area information forming a predetermined area on a road; a communication unit 21 configured to receive probe information S5 including a vehicle position and temporal information of a traveling vehicle 5; and a control unit 23 configured to generate the traffic index on the basis of the area information and the probe information S5.

Abstract: A roadside communication device having a data relay function includes a communication unit that receives mobile object data whose generator is a mobile object; a determining unit that determines whether to perform a thinning process of an amount of the mobile object data received by the communication unit, based on a predetermined determination condition; and a relay unit that relays the mobile object data with the thinning process when a result of the determination by the determining unit is positive, and relays the mobile object data without the thinning process when the result of the determination by the determining unit is negative.

Abstract: 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.