Healthy Growth Calculator

See the table below for your results. In the left column, you will find the impacts of typical sprawl density: costs of driving, how much water is available, what shopping is like, etc. In the right, you will see the impacts of your own choice.

For details about the impact and how it is calculated, click on the section heading, use the left navigation, or follow the "more info" links at the bottom. Numbers rounded and are developed using data for, and applies to, census tract sized neighborhoods (1,000 – 6,000 Hh) in metropolitan areas, not to isolated developments or rural towns.

Calculation Summary
Sprawl	vs	Your Choice
		choose density or place
Households per Residential Acre
3	vs	3
Land Used - Acres per 1000 Households
333		333
Roads & Sidewalks - Square Yards per 1000 Households
233,333		233,333
Water Use - Gallons per household each day
1,032		1,032
Local shopping - Service & Retail Employees per acre
1.6		1.6
Transit Service - Average buses per hour
0		0
Vehicles - per Household
2.21		2.21
Parking Spaces - per Household
14.2		14.2
Mileage - Average vehicle miles traveled per household each year
23,552.4		23,552.4
Gasoline - Average gallons per household each year
1,178		1,178
Auto Costs
$4,828		$4,828
Average cost of fuel alone each year
$17,283		$17,283
Total average costs each year
Pollution
62		62
Pounds of Volatile Organic Compounds per Household per year
155		155
Pounds of Nitrogen Oxide per Household per year
274		274
Pounds of Particulates per Household each year
16.5		16.5
Tons of Greenhouse Gases per Household each year