都市內發生的交通需求，可被視為活動者（人）在時空限制之下，為了實施在不同地點發生的活動而衍生的結果。若政策分析過程中賽入此重要觀念，則一互時空限制條件有所變化時，交通/活動行為相對改變的關係即無從得知，故亦無法有效地支援政策的擬定與實施。因此本研究乃針對臺南都會區之上班者，以「活動日誌調查法」記錄其於平日之一日完整行程，並將上班者在實施活動時所遭遇之時空限制條件納入模式之中，建構出以「交通/活動日程表」為基礎的二階段交通/活動選擇模式。研究結果顯示，在場所選擇模式方面，不論是「上班前」或「下班後」，「交通時間變數」及「活動持續時間」皆對上班者選擇活動場所有顯著的影響。在交通/活動類型選擇模式上面，上班前的「可利用時間」會明顯影響上班者對交通/活動類型的選擇，而且其會偏好「總交通時間」短的類型。在下班後，可利用時間亦會明顯影響上班者對交通/活動類型的選擇，且其為了實施較多的活動，相對也必須要花費較多的交通時間。

　　　　　The travel demands within a city can be regarded as the result of people trying to hold activities in different places under the constraints of time and space. This idea must be included in the analytical process, or the influences to individuals' decisions and travel behavior due to time-space constraints could not be accounted for and could not support effective policy analysis when activity patterns change. This study sampled workers in metropolis Tainan and recorded a weekday travel-activity schedule by using an "activity diary survey". Furthermore, the constraints of time and space were taken into account, and a two stage choice model based on travel-activity schedule was constructed. The result of the location choice models show it is the same that both "before work" and "after work", "travel time" and "duration" both had significant effect on workers. "Available time" and "total travel time" also have significant effect on workers' travel-activity pattern choice. After work, Workers also preferred travel-activity patterns with short "total travel time".