Method and system for representing traffic signals in a road network database

A method for representing traffic signals in a road database comprising:

• identifying a first set of one or more physical traffic signals located at an intersection that, with a common first set of phases, control one or more intersection maneuvers for traffic entering the intersection from a particular road, wherein each of the one or more intersection maneuvers is common to each of the one or more traffic signals in the first set of one or more physical traffic signals;
• storing in the road database a first traffic signal cluster data entity that identifies the first set of one or more physical traffic signals;
• identifying a second set of one or more physical traffic signals located at the intersection that, with a common second set of phases different from the first set of phases, control one or more intersection maneuvers for traffic entering the intersection from the particular road;
• and
• storing in the road database a second traffic signal cluster data entity that identifies the second set of one or more physical traffic signals.

A method for representing traffic signals in a road database comprising:

• identifying a first set of one or more physical traffic signals located at an intersection that, with a common first set of phases, control one or more intersection maneuvers for traffic entering the intersection from a particular road, wherein each of the one or more intersection maneuvers is common to each of the one or more traffic signals in the first set of one or more physical traffic signals, and wherein each of the one or more intersection maneuvers is associated with only one set of one or more physical traffic signals;
• storing in the road database a first traffic signal cluster data entity that identifies the first set of one or more physical traffic signals;
• identifying a second set of one or more physical traffic signals located at the intersection that, with a common second set of phases different from the first set of phases, control one or more intersection maneuvers for traffic entering the intersection from the particular road, wherein each of the one or more intersection maneuvers is common to each of the one or more traffic signals in the second set of one or more physical traffic signals, and wherein each of the one or more intersection maneuvers is associated with only one set of one or more physical traffic signals;
• and
• storing in the road database a second traffic signal cluster data entity that identifies the second set of one or more physical traffic signals.