For residents in urbanized areas, whether their daily travel time is stable or they have a constant travel time budget has been one of the focuses of research for many years.

• 城市居民一天出行的平均时耗是否具有一定的稳定性，或者是否存在固定的出行时耗预算，多年来一直是城市交通领域工作者的研究热点之一。