Research on the environmental factors in promoting longer walks has focussed on the outside environment. This research concerns factors in the willingness to walk (WTW) in underground space, in a tropical climate, that of Singapore. Participants were accompanied on a pre-determined itinerary and responded to a questionnaire at intervals on perceptions of their experience and their willingness to continue walking. Several environmental factors were related to WTW. Participants ranked corridor width and the volume of pedestrians as the most important factors in comfort. Although WTW observed a distance-decay function as expected, there were restoration episodes across the participant group, strongly suggesting conditions that enable longer walks in underground space.

对促进长距离步行的环境因素的研究主要集中在外部环境上。这项研究涉及新加坡热带气候下地下空间行走意愿 (WTW) 的因素。参与者按照预先确定的行程进行陪同，并每隔一段时间就对他们的经历的看法和他们继续步行的意愿回答一份问卷。几个环境因素与 WTW 有关。参与者将走廊宽度和行人数量列为影响舒适度的最重要因素。尽管 WTW 观察到了预期的距离衰减功能，但整个参与者组都出现了恢复事件，这强烈暗示了能够在地下空间进行更长时间步行的条件。