A traffic information providing apparatus which provides driver assistance information to connected vehicles, which are connected to the traffic information providing apparatus, comprising: a moving object detection/loss position calculation unit for calculating a plurality of moving object detection/loss positions on the basis of sensor data collected and transmitted by the connected vehicles, the senor data comprises information about first detection and loss of moving objects which are detected by the connected vehicles; an information addition unit for preparing information-added map information by obtaining a poor visibility section along a road and a position of a shielding object on the outside of the road on the basis of a plurality of moving object detection/loss positions on the road among the plurality of moving object detection/loss positions calculated by the moving object detection/loss position calculation unit and adding the poor visibility section and the position of the shielding object to map information stored in advance; and a driver assistance information preparation unit for preparing driver assistance information containing the poor visibility section and/or the position of the shielding object and warning information in the poor visibility section on the basis of the information-added map information prepared by the information addition unit, wherein the information addition unit maps the plurality of moving object detection/loss positions on a map of the map information, groups the plurality of moving object detection/loss positions mapped on the map so that moving object detection/loss positions close to each other belong to the same group on the basis of data of the plurality of moving object detection/loss positions on the road on which a vehicle that receives the driver assistance information is driven, estimates a region along a road in the vicinity of each grouped group as the poor visibility section, and specifies the position of the shielding object on the outside of the road around one side or both sides of the poor visibility section. a moving object detection/loss position calculation unit for calculating a plurality of moving object detection/loss positions on the basis of sensor data collected and transmitted by the connected vehicles, the senor data comprises information about first detection and loss of moving objects which are detected by the connected vehicles; an information addition unit for preparing information-added map information by obtaining a poor visibility section along a road and a position of a shielding object on the outside of the road on the basis of a plurality of moving object detection/loss positions on the road among the plurality of moving object detection/loss positions calculated by the moving object detection/loss position calculation unit and adding the poor visibility section and the position of the shielding object to map information stored in advance; and a driver assistance information preparation unit for preparing driver assistance information containing the poor visibility section and/or the position of the shielding object and warning information in the poor visibility section on the basis of the information-added map information prepared by the information addition unit, wherein the information addition unit maps the plurality of moving object detection/loss positions on a map of the map information, groups the plurality of moving object detection/loss positions mapped on the map so that moving object detection/loss positions close to each other belong to the same group on the basis of data of the plurality of moving object detection/loss positions on the road on which a vehicle that receives the driver assistance information is driven, estimates a region along a road in the vicinity of each grouped group as the poor visibility section, and specifies the position of the shielding object on the outside of the road around one side or both sides of the poor visibility section.