Display system, display control method, and storage medium

1. A display system comprising:

a display configured to display an image;

a road shape acquirer configured to acquire a shape of a road around a vehicle; and

a display controller configured to cause an image including the road shape acquired by the road shape acquirer to be displayed on the display,

wherein the display controller is configured to change a display aspect of lanes to be displayed on the display, on the basis of whether the number of lanes of the road around the vehicle is an odd number or an even number.

2. The display system according to claim 1 ,

wherein the display controller is configured to

cause a center lane among a plurality of lanes to be positioned and displayed at a center in a width direction of the display when the number of lanes of the road around the vehicle is an odd number, and

determine one of the plurality of lanes on the basis of regulations for the road and cause the determined lane to be positioned and displayed at the center in the width direction of the display, when the number of lanes of the road around the vehicle is an even number.

3. The display system according to claim 2 , wherein the display controller is configured to cause a traveling lane determined according to regulations for a second lane at a center among a plurality of lanes to be positioned and displayed at the center in the width direction of the display, when the number of lanes of the road around the vehicle is an even number.

4. The display system according to claim 2 , wherein the display controller is configured not to change a display aspect of the lane to be displayed on the display when the number of lanes changes from an even number to an odd number due to an increase or decrease in the number of lanes displayed on the display.

5. The display system according to claim 1 , wherein the display controller is configured to cause the lanes to be displayed so that a width of a lane positioned at a center in a width direction of the display is greater than widths of other lanes, and the width of the lane on the outside from the center is smaller than the width of the lane positioned at the center.

6. The display system according to claim 1 , wherein the display controller is configured to cause lane shape change information indicating a state in which a shape of the lane changes to be displayed on the display when the vehicle has reached a point at which the number of lanes in which the vehicle is able to travel in the same direction as a traveling direction of the vehicle increases or decreases or a point a first predetermined distance before a point at which the lane branches.

7. The display system according to claim 6 , further comprising:

a route guide configured to perform guidance for a route to a destination of the vehicle,

wherein the display controller is configured to cause information on the route determined by the route guide to be displayed on the display, and cause information on lane change to be displayed on the display when the vehicle has reached a point a second predetermined distance before a point at which the vehicle is to perform lane change on the basis of the route.

8. The display system according to claim 7 , wherein the display controller is configured to cause a road sign of a destination to which the branching road is connection to be displayed on the display when the vehicle has reached a point a third predetermined distance before a point at which the lane branches.

9. The display system according to claim 8 , wherein the first predetermined distance, the second predetermined distance, and the third predetermined distance are the same distances.

10. A display control method comprising:

acquiring, by a computer, a shape of a road around a vehicle;

causing, by the computer, an image including the acquired road shape to be displayed on a display; and

changing, by the computer, a display aspect of lanes to be displayed on the display, on the basis of whether the number of lanes of the road around the vehicle is an odd number or an even number.

11. A computer-readable non-transitory storage medium storing a program causing a computer to:

acquire a shape of a road around a vehicle;

cause an image including the acquired road shape to be displayed on a display; and

change a display aspect of lanes to be displayed on the display, on the basis of whether the number of lanes of the road around the vehicle is an odd number or an even number.