# Prison Scale Model

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## Introduction: Prison Scale Model

Situation: There is an influx of prisoners in the detention facilities in the local area, due to the recent surge of crime. The jailhouses are overpopulated and the guard to prisoner ratio is on the borderline of becoming unsafe

## Step 1: Design Brief

Design Brief: A detention facility is required to compensate for the increased number of criminals being incarcerated and being sent to prison.

Panopticon Inspired Design

## Step 2: ​Facilities List

Visitor Area

Prison Cells

Cafeteria

Kitchen

Hospital/Medical Room

Library

Office

Staff Change Room

Washroom

Control Room

Staff Room

Prisoner Showers

Mechanical Rooms

Electrical

Boiler Room

Laundry Room

Stairs

Parking and Lighting

Side Walks

Foundation

## Step 3: Caluclations

Waiting Area:

Waiting Area = 12 visitors + one Staff,

· chairs side by side- each chair: 500x500mm, total (4 chair rows):2000x500mm

· Desk: 900mmx1500mm, plus one chair: 500mmx500mm-total area = 2400x1500mm

Total Area: 4mx5.9m =23.6m2

Visiting Area:

Visiting Area = 6 + guards

· Visitor standing area: 5900mm x 2000mm

· Guard area between visitor and prisoner area: 5900mm x 1000mm

· Prisoner visiting area: [5900mm x 2000mm] + ½ (2775mm x 5550mm) = 39.56m

Total Area: 5900mm x 5400mm + ½ (2775mm x 5550mm) = 39.56m2

*Note: Some facilities are not square or rectangular in shape, and therefore require geometric calculations to find out the area.

Prison Cells

Number of People using the facility: 192 prisoners, each in 12 people cells = 16 cells (Note: due to area constraints caused by the laundry and medical room, two cells have been merged into one, and the total number of prisoners have been reduced, however, the theoretical number of prisoners remain same as the original 192.

· bunk beds: 1000x2000mm,

· With 1000mm between each bunk bed.

· 1200mm space from the wall to the first bunk bed to accommodate for the cell door.

· Cell Washrooms: 1000x1800mm

· 1000mm of walking space bed to bed.

· Distance between each bar of the cell: 100mm

Total Cell Area: 7.4m x 5m = 37m2

Cafeteria:

The number of people using the facility: 193 prisoners, not including guards, who do not sit

· Table of eight (16 tables x 8 people per table = 128): table top radius = 750mm, chairs = 500x500mm, total area 3500x3500m.

· Note: Seven 7 seater tables (8 seat – 1 seat table), due to the table being against the wall.

· Double Tables (eight tables): 1000mm x 3000mm

· 1000mm space in between tables for walking,

· Since a row of tables are right beside the wall, 7 chairs are taken away and compensated by double tables and round eight seater tables.

· Serving counter 10700mm x 1000mm

· Dish Cart: 950mm x 460mm

· Dish Rack: 1000mm x 500mm

Total Area: ½ (20m x 10m) +(4.5m x 10.2m) + ½(9.8m2) + ½(10m x 10m) + (10 x 10m) + ½(10m x 10m) + (14.142m2) + ½(10m x 10m) + (2m x 10m) = 663.92m2

*Note: Some facilities are not square or rectangular in shape, and therefore require geometric calculations to find out the area.

Kitchen:

10 Workers

· Range(four): 914x914mm

· Walk In Fridge and Freezer: 5000mm x 3000mm

· Triple Sink: 1400x500mm

· Single Sink: 488mm x 500mm

· Dishwasher (industrial): 1000mm x 2000mm

· Fryer(two) : 400x790mm

· Broilers(three) : 900.600mm

· Shelf: 3400mm x 500mm

· 1086mmto4300mm of walking space respectively

· Working bench: 1000mm width, 7000mm and 2500mm in length respectively

Total Area: 10m x 10m = 100m2

Medical Room:

Three medical workers and three patients will be using the medical room.

· Operating table: 2000x900mm

· Medical Cabinet: 500mm wide, 4993mm and 5942mm in length respectively

· 1000mm of space between the operating table to each wall, while 500mm from the front.

Total Area : 2 x [(2.2m x 1.53m) + ½(1.53m x 1.48m) + ½(3.68m x 3.63m)] + (9.43m x 5.15m) = 71.23m2

*Note: Some facilities are not square or rectangular in shape, and therefore require geometric calculations to find out the area.

Library:

The number of people using this facility: 46 prisoners, plus guards (not included)

· Four 8-seater tables = 32 people (Dimensions: 3500x3500mm)

· Two 4-seater tables = 8 people (Dimensions: 3500x3500mm)

· Three 2-seater tables = 6 people (Dimensions: 1000mm x 3000mm)

· 1000mm or more space between each table

· Shelf: 600mm wide, 6000mm in length, one end shelf, 300mm in width

· Seminar rooms included: eight seater table with 1000mm space on each side, 5500mmx5500mm

Total Area : (7.81m x 10m) + ½(14.30m x 10m) + (14.30m x 13.76m) = 346.37m2

*Note: Some facilities are not square or rectangular in shape, and therefore require geometric calculations to find out the area.

Office:

· Desk: 900x1500mm, 500x500mm chair, total area: 1500x2400mm

· Walking space: given 750mm of waking space

Total area: (2.49m x 3m) + (1.59m x 1.41m) + ½(1.41m x 1.41m) = 10.7m2

Staff Change Rooms:

· Lockers(18 individual lockers per change room): 300x281mm depth, 9 double stack lockers = total length = 2700mm

· Bench: 355mm x 3900mm

· 1026mm of walking space

Total area: 1.76m x3.9m = 6.86m2

Washrooms:

· Total Number people using the washroom, 36 staff plus 12 visitors = 48/25 = 1.92 +10% = two stalls plus one PIN stall. 3 stalls/10 = 1 sink.

· Stall: Regular = 1500x1000mm, PIN= 1500x1500mm

· Sink= 600x1000mm

· 1500mm walking space

Total Area: 3.6m x 3.5m = 12.6m2

Control Rooms:

· Control tables= 500mm in depth, 1425mm and 2600mm in length respectively

· Chair= 500x500mm

Total Area: 4m x 1.925m = 7.7m2

Staff Rooms:

· Fridge: 813mm x 635mm

· Counter: 2000mm x 635mm

· 1025mm of walking space

· One two seater table(with two chairs, each 500mm x 500mm) : 1000mm x 3000mm

Total Area: 4m x 2.66m = 10.64m2

*Note: Some facilities are not square or rectangular in shape, and therefore require geometric calculations to find out the area.

Shower Room:

192 prisoners will be using the showers

· 192 prisoners/25 =7.68 showers = 8 showers, divided into two identical rooms

· 8 shower stalls/10 = 1 sink per room (600mm x 1000mm).

· 1500x1500mm space for each shower stall.

· 1500mm of walking space

Total area: (3m x 3m) + (7.64m x 3m) = 31.92m2

Mechanical Rooms

Electrical / Boiler Rooms:

Total Area (one room-each identical): Including walkways: 3m x 4m = 12m2

Laundry Room

Up to 5 people will be using the laundry room

· Washing machine(ten) : 1020x 915mm

· With 100mm space in between machines

· Sinks( two double sink): 600x1194mm

· Dryer(four): 720mm x 745mm

· Laundry basket(three): 1900x 650mm

Total Area : 2 x [(2.2m x 1.53m) + ½(1.53m x 1.48m) + ½(3.68m x 3.63m)] + (9.43m x 5.15m) = 71.23m2

*Note: Some facilities are not square or rectangular in shape, and therefore require geometric calculations to find out the area.

Stairs:

Height of the floor is 6000mm

· Riser = 200mm (all risers, including outside stairs are 200mm) , 6000mm/200mm = 30 steps

· Three landings: 2000mm x 2000mm

· Step width: 300mm

· Step Length: 2000mm

Total Area: 6.4m x6.4m = 40.96m2

Walls and Height

Walls: Interior = 200mm

Walls: Exterior 350mm

Height of First Floor: 6000mm

Height of Second Floor: 4000mm

Parking:

There will be 36 staff and 12 visitors accessing the parking lot

# Of parking spots= Total Number of People [(Staff+ Anticipated Visitors) + 10% Extra Visitors]/10

= [(36 staff + 12 visitors) + 48 x 0.1]/10

=5.28 spots

PIN Parking = # of Parking Spots x 10%

= 5.28 x 0.1

= 0.528 or approx. one PIN parking spot

Total Parking Spots = 5 spots + 1 PIN spot = 6 parking spots

Dimension: Regular: 2m x 3m, PIN spot: 3m x 3m

Lighting:

· Diameter of Light Pole: 500mm

· Distance between each light pole: less than 10m

Lanes:

Width= 3m

Sidewalk:

The side walk will be wrap around the entire building and include ramps for PIN

Sidewalk:

· Width: 1 meter

· Height: 0.15m

Curb:

· Height: 0.15m

· Width : 0.2m

· Curve Radius: 1m

Ramp Calculation:

Height = 3 steps x Risers (0.2m) = 0.6m

Length = H (0.6m) x 12 = 7.2m

Width: 1m

Foundation

The type of foundation utilized in this commercial building will be a strap beam foundation

Foundation Depth:

= Total Height of Building/3

=H/3

=11500mm/3 = 3833.33mm

Strap Beam Height:

= 2/3 Foundation Height

=2/3 x 3833.33mm = 2555.56mm

Depth of PC:

= 20% of Strap Beam Height

= 0.2 x 2555.56mm = 511.11mm

Overhang:

= 10% Length of PC

= 50700mm x 0.1 = 5070mm

Beam Width: 450mm

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