{
    "classic_lane": {"stone": 3, "andesite": 1},
    "modern_lane": {"black_concrete": 3, "black_concrete_powder": 1},

    "bike_lane_green": {"green_concrete": 3, "green_concrete_powder": 1},
    "bike_lane_red": {"red_concrete": 3, "red_concrete_powder": 1}
}