Research Article
Modeling the Commuting Travel Activities within Historic Districts in Chinese Cities
Table 2
Description of endogenous variables in SEM.
| Category | Variables | Description |
| Subsistence activity | Commute time | Time allocated to work or work-related trips | Commute trip number | Number of work or work-related trips | Duration of the commuting | Successive time of work or work-related activities in the workday |
| Travel behavior | Number of trips | The total number of trips in a whole day | Number of trip chains | Number of home-based trip chains | Type of trip chain | A sequence of trips that starts and ends at the household location in a whole day |
| Travel mode | Mode choice | Nonmotorized mode; public transportation; automobile |
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