GIS与层次分析法结合的危险品车辆停车场选址——以苏州市为例

Siting of dangerous goods vehicle parking lot by combining GIS and hierarchical analysis process:take Suzhou as an example

为更好实现危险品车辆停车场的科学选址布局,提升危险品道路运输安全,考虑危险品车辆本身的危险属性会增大选址因素的复杂性和多样性,提出GIS与层次分析法结合的危险品车辆停车场选址方法。首先,根据危险品车辆GPS轨迹数据对研究区域停车泊位需求进行预测,使用层次分析法确定停车场选址影响因子权重,并按重分类加权叠加;然后,根据综合适宜性评分值、禁止建设区域、面积过小等约束条件,筛选出停车场初始位置;最后,通过位置分配模型结合城市道路网络,确定危险品车辆停车场的位置和数量,实现对危险品车辆停车场选址的优化。以苏州市危险品车辆停车场选址为列,选址结果不仅验证该选址方法的实用性,还能为危险品车辆停车场选址提供新思路。

In order to better achieve the scientific siting layout of dangerous goods vehicle parking lot and enhance the safety of dangerous goods road transportation,and considering that dangerous goods vehicle’s own hazardous attributes will increase the complexity and diversity of siting factors,we propose the siting method of dangerous goods vehicle parking lot by combining GIS and hierarchical analysis method.First of all,according to the GPS trajectory data of dangerous goods vehicles predicted the demand for parking spaces in the study area,using hierarchical analysis determined the weight of the influence factors of parking lot siting and weighted superposition according to the reclassification;then,according to the value of the comprehensive suitability score,the prohibition of the construction area,the area of the small and the distribution of the spacing of the constraints such as the initial location of the parking lot;finally,through the location allocation(LA)model combined with the urban road network,determined the location of the parking lots for dangerous goods vehicles and the number of parking lots,and achieved optimization of parking lot siting for dangerous goods vehicles.Using the Suzhou hazardous goods vehicle parking lot as a case study,the site selection outcome not merely confirms the viability of the site selection process,generating fresh concepts for the dangerous goods vehicle parking lot site selection.