User speed as an important context in mobile environment directly affects the presentation of mobile map.

用户速度作为移动环境中重要的上下文要素之一，直接影响移动地图内容的表达。

This study would provide theoretical reference for the research on mobile map generalization based on user speed.

为基于用户速度的移动地图综合研究提供理论参考。

With the development of Pocket PC and technique of LBS services, mobile map services is becoming the hot topic in the world.

随着手持设备的日益普及和基于位置服务技术的逐渐成熟，移动地图服务成为人们关注的热点。