Here are the correct results:
Commuting Times (Minutes, Solo Drivers, One-Way)
Area
|
Means
|
Variances
|
Metro
|
25.2
|
338.7
|
Urban
|
22.8
|
214.7
|
Suburban
|
24.5
|
292.4
|
Second City
|
23.6
|
308.5
|
Town and Country
|
28.4
|
457.0
|
Home-Based Shopping Trips (Minutes, Solo Drivers, One-Way)
Area
|
Means
|
Variances
|
Metro
|
12.5
|
95.4
|
Urban
|
12.1
|
93.3
|
Suburban
|
11.9
|
80.9
|
Second City
|
11.3
|
78.4
|
Town and Country
|
17.6
|
221.4
|
Home-Based Social/Recreational Trips (Minutes, Solo
Drivers, One-Way)
Area
|
Means
|
Variances
|
Metro
|
16.9
|
188.6
|
Urban
|
17.3
|
177.7
|
Suburban
|
16.4
|
173.7
|
Second City
|
16.3
|
183.9
|
Town and Country
|
17.2
|
208.2
|
Source: Calculated from 2009 NHTS data
The story remains the same. Within MSAs, most people live and work in the "Urban," "Suburban" or "Second City" settings. Average trip times (and in some cases variances) for three trip purpose types do not vary significantly among these. No "costs of sprawl".
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