Method and apparatus for verifying a road work event

An apparatus configured to determine a road work event confidence, the apparatus comprising processing circuitry and at least one memory including computer program code instructions, the computer program code instructions configured to, when executed by the processing circuitry, cause the processing circuitry to:

• receive an indication of an active road work event, wherein the indication of the active road work event comprises a time period and a location of the active road work event;
• determine a road network speed profile corresponding with a geographical location that is associated with the active road work event, wherein the road network speed profile comprises dynamic speed limit sign data that is based on image analysis of vehicle sensor data, wherein the dynamic speed limit sign data identifies a dynamic speed limit sign associated with a start location of the active road event and in a circumstance in which another dynamic speed limit sign is identified, the dynamic speed limit sign data identifies another dynamic speed limit sign associated with an end location of the active road work event, and in a circumstance in which another dynamic speed limit sign is not identified, the dynamic speed limit sign data identifies a location at which the dynamic speed limit sign is no longer active;
• determine, based at least in part on probe data corresponding with the geographical location, lane level information for a plurality of lanes associated with the road work event, wherein the lane level information comprises a lane event type such that respective ones of the plurality of lanes are assigned one of a plurality of lane event types comprising at least a lane shift, a lane merge, a narrow lane, or a lane closure, wherein each instance of the probe data comprises a timestamp within a time period that is associated with the active road work event:
• determine, based at least in part on probe data corresponding with the geographical location and the lane level information, a probe speed profile;
• determine the road work event confidence based at least in part on evaluation of the road network speed profile and the probe speed profile;
• determine, based at least in part on the probe data corresponding with the geographical location, a lane that is subject to a reduced speed limit in a vicinity of the road work event;
• in response to determining that the road work event confidence satisfies a predetermined threshold,
• cause transmission of road work event information corresponding with the active road work event for display by a user interface, the road work event information comprising at least the lane that is subject to the reduced speed limit in the vicinity of the road work event, the start location of the road work event at which the dynamic speed limit sign is identified, and in the circumstance in which another dynamic speed limit sign is identified, the end location of the road work event and in the circumstance in which another dynamic speed limit sign is not identified, a location at which the dynamic speed limit sign is identified to no longer be active;
• and
• cause, based, at least in part, upon the transmission of the road work event information, an autonomous vehicle to proceed in the lane that is subject to the reduced speed limit in the vicinity of the active road work event.

A computer program product configured to determine a road work event confidence, the computer program product comprising at least one non-transitory computer readable storage medium having computer executable program code instructions therein, the computer executable program code instructions comprising program code instructions configured, upon execution, to:

• receive an indication of an active road work event, wherein the indication of the active road work event comprises a time period and a location of the active road work event;
• determine a road network speed profile corresponding with a geographical location that is associated with the active road work event, wherein the road network speed profile comprises dynamic speed limit sign data that is based on image analysis of vehicle sensor data, wherein the dynamic speed limit sign data identifies a dynamic speed limit sign associated with a start location of the active road event and in a circumstance in which another dynamic speed limit sign is identified, the dynamic speed limit sign data identifies another dynamic speed limit sign associated with an end location of the active road work event, and in a circumstance in which another dynamic speed limit sign is not identified, the dynamic speed limit sign data identifies a location at which the dynamic speed limit sign is no longer active;
• determine, based at least in part on probe data corresponding with the geographical location, lane level information for a plurality of lanes associated with the road work event, wherein the lane level information comprises a lane event type such that respective ones of the plurality of lanes are assigned one of a plurality of lane event types comprising at least a lane shift, a lane merge, a narrow lane, or a lane closure, wherein each instance of the probe data comprises a timestamp within a time period that is associated with the active road work event;
• determine, based at least in part on the lane level information, a probe speed profile;
• determine the road work event confidence based at least in part on evaluation of the road network speed profile and the probe speed profile;
• determine, based at least in part on the probe data corresponding with the geographical location, a lane that is subject to a reduced speed limit in a vicinity of the road work event;
• in response to determining that the road work event confidence satisfies a predetermined threshold,
• cause transmission of road work event information corresponding with the active road work event for display by a user interface, the road work event information comprising at least the lane that is subject to the reduced speed limit in the vicinity of the road work event, the start location of the road work event at which the dynamic speed limit sign is identified, and in the circumstance in which another dynamic speed limit sign is identified, the end location of the road work event and in the circumstance in which another dynamic speed limit sign is not identified, a location at which the dynamic speed limit sign is identified to no longer be active;
• and
• cause, based, at least in part, upon the transmission of the road work event information, an autonomous vehicle to proceed in the lane that is subject to the reduced speed limit in the vicinity of the active road work event.