Table 4 Selection methods in genetic operations

Difference between the best and second best score is greater than or equal to 0.1.

The best G-Type with the greatest score is preserved and 3 other G-Types are generated by the mutation operation to the best G-Type.

Difference between the best and second best score is less than 0.1.

The best G-Type is preserved and 3 other G-Types are generated by crossover and mutation operations between G-Types with the best and second best scores.

There are 2 best scores.

Four new urban landscapes are created by crossing and mutating 2 urban landscapes with best scores.

There are 3 best scores.

Four new urban landscapes are created by crossing and mutating 3 urban landscapes with best scores.

There are 4 best scores.

Four new urban landscapes are created by crossing and mutating 4 urban landscapes with best scores.