Iteration 3 Regularized Grid with Primary and Secondary Roads (Bent and Heterogeneous)

Iteration B

This iteration features simulation based on the same block typology tested on Type 3 Regularized grid with primary and secondary roads, as described in the introduction of the chapter. Iteration 3B features the same typology where the residential tower sits on the commercial podium block, however, the depth and width of the residential block is reduced.

Figure 12. Block typology and Urban morphology for Iteration 3b

Set-up

The distribution of residential and commercial area is as follows

• Residential: 22sqm per person
• Commercial: 13sqm per person

  Parameters for urban morphology

• Residential storey height: 3m
• Commercial storey height: 5m
• Green connector road 15m
• Green buffer 5m (each side)
• Primary roads 8m
• Secondary roads
• Pedestrian roads 1.5m
• Parks < 500sqm

  Urban morphology

• Maximum floor count: 22
• Average floor count: 8
• Total number of buildings: 170

Building Simulation

Figure 13a. Iteration 3b Building simulations

Good Building = 83.68%

• Daylight factor = 45.66%
• Passive ratio = 98.90%
• Solar Factor = 88.52%

Figure 13b. Iteration 3b Building simulations

Good Window =25.35%

• View Factor = 48.46%
• Good window ratio = 84.26%

Evaluation

With reduced width and depth of residential towers, view factor and good window improved significantly. Good window has increased to 25.35% from its previous 19.74%. Good building has also increased to 83.68%, up from its previous 63.23%.

The low percentage of good window here is still low at 25.35%. However, this is due to the block typology of a courtyard residential tower. All inner courtyard facing windows are considered to be unpleasant in this simulation. In reality, inner facing windows are to be considered desirable as the courtyard was meant be filled with greenery and landscape. Hence, the number of good windows would be significantly higher.