Walkability/New construction: Difference between revisions

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|<nowiki>530.43 kg/m^2</nowiki>
|<nowiki>530.43 kg/m^2</nowiki>
|<nowiki>CO2 emissions involved in making a building, per unit of floor area</nowiki>
|<nowiki>CO2 emissions involved in making a building, per unit of floor area</nowiki>
|<nowiki>Includes all materials and construction processes.</nowiki><br /><nowiki>
|<nowiki>Includes all materials and construction processes.</nowiki><br /><small>But probably doesn't include furnishings.</small><br /><nowiki>
</nowiki><br /><nowiki>
</nowiki><br /><nowiki>
Source:</nowiki><br /><nowiki>
Source:</nowiki><br /><nowiki>

Revision as of 01:00, 4 November 2023

building.construction_ghg_by_floor_area
530.43 kg/m^2
CO2 emissions involved in making a building, per unit of floor area
Includes all materials and construction processes.
But probably doesn't include furnishings.

Source:
Case Study on Carbon Footprint Life-Cycle Assessment for Construction Delivery Stage in China
by Xiaojuan Li, Chen Wang, Mukhtar A. Kassem, Shu-Yi Wu, and Tai-Bing Wei
https://www.mdpi.com/2071-1050/14/9/5180
Sustainability 2022, 14(9), 5180; https://doi.org/10.3390/su14095180

Quote: "...the area carbon-emission intensity is between 400 and 800 kgCO2/m^2, and the average area carbon emission of the building is 647.99 kgCO2/m^2 compared to other research results for emissions around 412.87 kgCO2/m^2"

So I decided to take the midpoint between both figures.
gasoline.ghg_by_energy
71.30 kg / million btu
CO2 emissions of burning gasoline
https://www.eia.gov/environment/emissions/co2_vol_mass.php
average_us_vehicle.fuel_usage
489 gallons gasoline/year
The average American vehicle uses this much gasoline (measured in energy units)
Top Numbers Driving America's Gasoline Demand
https://www.api.org/news-policy-and-issues/blog/2022/05/26/top-numbers-driving-americas-gasoline-demand

Note: Since the statistic is mentioned specifically in relation to gasoline, we can '''probably''' assume that it excludes diesel-powered vehicles such as semi trucks. But the website doesn't specify that, so it's anyone's guess.
usa.registered_vehicles
275.9 million
Number of registered vehicles in the USA
Top Numbers Driving America's Gasoline Demand
https://www.api.org/news-policy-and-issues/blog/2022/05/26/top-numbers-driving-americas-gasoline-demand
usa.population
334416477 people
Number of people living in the USA
United States Population (Live) - Worldometer
www.worldometers.info › world-population › us-population
Last updated April 7 2022
home_space
400 square(feet) per person
private_fraction_of_building
70%
Percent of the building's floorspace that is private living space
The rest is hallways, stairwells, and common rooms.

building.construction_ghg_by_floor_area * home_space / private_fraction_of_building years (average_us_vehicle.fuel_usage * gasoline.ghg_by_energy * usa.registered_vehicles / usa.population) (calculation loading)