摘要
传统的交通网络数据模型是用结点-弧段模型来表示的。为了有效地计算弧段间的相对方向,把相邻弧段间的夹角引入到结点-弧段模型中,提出了结点-弧段-夹角拓扑关系数据模型。在此基础上建立判断道路间相对走向的数学模型。最后用此模型生成交叉口的指路标志。
The basic data model of transportation network is represented by node-arc model. The angles between every two adjacent arcs are introduced in the node-arc model, and the node-arc-angle data model is proposed. A mathematical model is created to calculate the relative direction between the roads. This model is applied to the creation of road sign information of intersection at last.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第4期121-123,共3页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广东省科技计划资助项目(2004A10103002)
关键词
道路相对方向
路网拓扑
结点-弧段-夹角数据模型
the relative direction between roads
topology of road network
node-arc-angle data model
