Editing Sustainable Urban Systems (section)

== <span style="color: #FFFFFF;">Applying</span> ==
'''Modeling 'The Walkability Score' (Predicting if a person will 'Walk' to the shop):'''
<syntaxhighlight lang="python">
def evaluate_walkability(distance_m, street_shade_pct, has_sidewalk, num_shops_en_route):
    """
    Shows if the 'System' encourages human movement.
    """
    score = 0
    if distance_m < 800: score += 40 # People walk ~10 mins max
    if street_shade_pct > 50: score += 20 # Shade matters in summer
    if has_sidewalk: score += 20
    if num_shops_en_route > 3: score += 20 # Interesting streets feel shorter
    
    if score > 80:
        return f"WALKABILITY: HIGH ({score}/100). The city 'Invites' the pedestrian."
    elif score > 40:
        return f"WALKABILITY: MODERATE ({score}/100). Okay, but cars still dominate."
    else:
        return f"WALKABILITY: LOW ({score}/100). A 'Car-Only' desert."

# Case: A suburban street with no shade or shops
print(evaluate_walkability(1500, 0, False, 0))
# Case: A '15-Minute' City street
print(evaluate_walkability(400, 80, True, 5))
</syntaxhighlight>

; Sustainability Landmarks
: '''The 'Superblocks' (Barcelona)''' → Taking "9 City Blocks" and "Stopping All Cars" from entering the middle, "Returning the Street" to "Children and Neighbors."
: '''The 'Masdar City' (UAE)''' → A "Zero-Carbon City" built in the desert: it uses "Ancient Wind-Tower Logic" and "Modern Solar" to "Cool the City" with "Zero Energy."
: '''The 'Portland' Growth Boundary''' → A "Legal Line" around the city that "Forbids Sprawl," "Forcing" the city to "Grow Up" (Density) instead of "Grow Out."
: '''Oslo’s 'Car-Free Center' ''' → Oslo "Removed every parking spot" from the city center, "Instantly" making it "Quieter," "Cleaner," and "More Profitable" for shops.
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