Back with an update, I got almost all the dimensions needed for the diorama! I think I just need the spacing for the lane markers on the road.

I had calculated all the dimensions into inches, but I ran into a snag while trying to draw it out. Inches are in units of 12, which makes it difficult to be exact when measuring it out when the number is 1.69".

Source: Parking Spot. Lane Width. Sidewalk width. Conversion Calculator.

Width (w) is left to right, height (h) is up and down. And if you think anything is wrong or isn't right, tell me please!

Wood Board

1:64 -> 2' H x 1' 6.5" W (~) = 18.5" W x 24" H

1:1 -> 1184" w x 1536" H = 98' 8" w x 128' H

Parking Spot (90 degree)

1:1 -> 9' W x 18' H = 108" W x 216" H

1:64 -> 1.69" W x 3.38" H

Parking Lot Aisle Height (with 90 degree parking) (1 or 2 way aisle)

1:1 -> 24' h = 288" h

1:64 -> 4.5" h

Parallel Parking

1:1 -> 8' h x 24' w = 96" h x 288" w

1:64 -> 1.5" h x 4.5" w

Parking lot total height

1:1 -> 18' + 24' + 18' = 60' = 720" h

1:64 -> 11.25" h

Lane (Road) Width (in terms of height)

1:1 ->12' h (standard) = 144" h

1:64 -> 2.25" h

Full Road Width (in terms of height)

1:1 -> 12' h + 12' h = 24' h = 288" h

1:64 -> 4.5" h

Sidewalk Width (in terms of height)

1:1 -> 4' h = 48" h

1:64 -> 0.75" h

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***Board Parameters***

Parking lot height -> 60'

Road height -> 24'

Parallel Parking height -> 8'

Sidewalk height -> 4'

1:1 -> 60' + 24' + 8' + 4' = 96' = 1,152"

1:64 -> 18"

***Remaining Space***

18.5" - 18" = 0.5" (room of 'play')

***Width (with 90 degree Parking spot, w/ 0.5" grassy area on each side of the lot)***

24" - 1" = 23" / 1.69" = 13.6

width of board - grassy area = remaining space / width of parking spot = 13.6 spots available.