# How to Design a Car Park? Maths Has The Answer?

Did you know that a 45-degree bay angle leads to an efficiency saving of 23%!

Do you know why the world’s top car park designers prefer Helix spiral car park design for large car parks instead of traditional grid design?

We all know that congested parking lots can be frustrating and the long wait in the parking lots, whether be at the grocery store, multiplex or shopping malls can be a nightmare.

While finding a way out of this has puzzled architects for many years, Professor David Percy, a professor at the University of Salford reveals how elementary maths holds the key to designing the ultimate car park design and perfect parking lot.

Based on his analysis, the expert explains the math behind the perfect car park designs including why a diagonal layout of parking bays, the direction of traffic flow and choosing a helix car park design over the conventional grid design help to optimize the available space.

### 1. PREFER HELIX CAR PARK DESIGN OVER GRID DESIGN

Did you know that the Sydney Opera House, known for its architectural brilliance is also home to the one-of-a-kind double helix spiral concrete car park, called Bennelong Point Parking Station? The 12- storey underground parking, nestled beneath Sydney’s Royal Botanical Gardens is closest to what Professor David Percy believes makes for a perfect parking lot – a Helical car park design.

Large and rectangular shaped sites are ideal for parking structures, choosing helix car park design offers better air circulation and safety. It also stands out because it uses one entrance for one way traffic, has a simple traffic flow and one exit that makes it safe for pedestrians and also uses the available space efficiently.

While different users require different pedestrian circulation systems some vehicular circulation systems are better for specific users like hotel, office, retail, residential strata and other to better accommodate the users.

### 2. DIAGONAL PARKING BAYS FOR EFFICIENT SAVINGS OF 23%

A diagonal layout of parking bays offers a significant savings of 23% and helps to ease up congestions. Since cars require less course correction, it makes manoeuvring and reversing out of bay easier. Moreover, they provide ample space around cars to enable easy pedestrian access. As a result, the access lanes can be narrower which eventually allows fitting in more car parking bays.

### 3. ONE–WAY FLOW PREFERRED OVER TWO-WAY FLOW FOR CONVENIENCE

One-way traffic flow makes it easier for parkers to enter/ reverse/ exit parking spaces. The one-way flow system throughout the car park not only helps avoids congestion, enable better visibility and reduced potential for accidents, it also allows to design narrower access lanes and offer extra parking bays.

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