|
| Variables | Description | Mean | SD |
|
| Demographic characteristics |
| Age | Belonging to the age.
{1 = 18–30, 2 = 31–40, 3 = 41–50, 4 = 51–60, 5 = 61–70} | 2.07 | 1.16 |
| Sex | Male or female. {0 = female, 1 = male} | 0.62 | 0.48 |
| Education | Education level.
{1 = low, 2 = medium, 3 = highly} | 2.10 | 0.68 |
| Occupation | Type of occupation.
{1 = self-employed, 2 = employed, 3 = retirement, 4 = other} | 2.28 | 0.91 |
| Income | Annual family income (10,000 RMB).
{1 = below 5, 2 = 5–20, 3 = above 20} | 2.10 | 0.62 |
| Car use | Car domination rights, it also means car usage in daily life.
{1 = totally at my disposal, 2 = used primarily by me, 3 = used primarily by family} | 1.85 | 0.79 |
| Travel cost | Daily acceptable transportation expenses (RMB).
{1 = below 10, 2 = 10–40, 3 = above 40} | 1.94 | 0.63 |
|
| Built environment |
| Road density | Road network density (km/km2). | 6.64 | 2.51 |
| Intersection density | Number of road intersections in the area (count/km2). | 3.30 | 3.01 |
| Land use mix | Land use diversity index, calculated by the land use entropy formula. | 0.57 | 0.15 |
| CBD distance | Distance from residence to central business district (km). | 9.89 | 7.65 |
| Bus stop | Number of bus stops in the area (count). | 11.22 | 5.95 |
| Bus route | Number of bus lines in the area (count). | 13.76 | 10.14 |
| Bus distance | Distance from residence to nearest bus stop (km). | 0.20 | 0.10 |
| Subway distance | Distance from residence to the nearest subway station (km). | 1.43 | 1.29 |
|
| Travel information |
| Travel distance | Travel distance (km). | 2.73 | 1.09 |
| Trip purpose | Trip purpose.
{1 = commute, 2 = entertainment, 3 = official business, 4 = other} | 2.05 | 1.03 |
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