In this paper, a linear referencing system based on road line-shape is presented in order to reduce spatial data redundancy and protect road event from going out of road range.

在分析了线性参照系统概念模型的基础上，对其中两个关键问题进行了研究，即基于道路几何特征的线性参照基准模型和基于道路曲线要素的动态分段模型。

youdao

The key global event will be the World Youth Assembly for Road Safety, bringing together in Geneva, Switzerland, delegations of young people from many countries.

主要全球事件将是世界道路安全青年大会，来自许多国家由年轻人组成的代表团聚集在瑞士日内瓦。

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Young people attending the event represented more than 100 countries, and are involved in a vast array of road safety efforts.

出席这一事件的年轻人代表100多个国家，并且在从事大量广泛的道路安全努力。

youdao

The Great North Run is the world's most popular half-marathon road-running event, with more than 47, 000 competitors of all abilities.

BBC: Haile Gebrselassie to make Great North Run debut

There will also be highlights of the women's event in which Olympic Road Race champion Nicole Cooke was attempting to win the Commonwealth title, no easy task in an event which favours riders who can call on the support of team-mates to help them plot their way through the race.

BBC: Commonwealth Games: Day seven preview

Campaigners lit hundreds of lanterns at the "Night of Light" event on Cannock Road in Stafford on Saturday.

BBC: Stafford hospital: Lanterns lit at night-time protest