The baggage required for the trip is a function of the starting point, mode of travel, expected duration of the journey, and of various conditions and expected activities at the destination.

旅程所需的行李随着起始点、旅行的模式、预期的旅行时间，和目的地的各种条件和预期的活动而变化的。

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I have collected all my travels within the immediate local area (Boston) into a series of maps categorized by the mode of transportation for each trip.

我集中附近区域内(波士顿)的游记归类成系列地图，再根据所用交通工具分类。

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There are stable relations between trip mode split and personal characteristics, family characteristics and trip characteristics, which change little with the change of time.

居民出行交通方式选择与个人属性、家庭属性和出行属性之间有较稳定的关系，其随着时间的推移变化甚微。

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Those looking to save money on their travel said they will skip hotels and stay with family or friends, take a shorter trip, use a more economical mode of transportation or spend less on shopping or sightseeing.

CNN: AAA: More travelers to hit the road during Labor Day weekend