基于投影寻踪模型的河南县域交通与经济协调性评价

Coordination degree between transportation and regional economic development based on projection pursuit model in Henan

通过建构县域交通优势度与经济发展水平综合评价指标体系,运用投影寻踪模型对2003年和2008年河南省各县域单元的交通优势度和经济发展水平进行综合评价与比较。进而采用耦合协调度模型对河南县域交通优势度与区域经济发展水平的耦合协调性进行评价、比较与分类。研究表明,2003-2008年期间河南省各县市交通优势度与经济发展水平均获得了较大幅度的提升,但区域分异现象还较为突出。县域交通优势度由2003年的沿主要交通干线带状分布向团块状连片分布态势演进,中原城市群地区县市交通优势度高于外围地区,平原地区县市交通优势度高于山区县市;而县域经济综合发展水平西部普遍高于东部,山区资源县市高于平原农业县市。交通优势度与县域经济耦合作用强度普遍较高,并呈明显的增强态势,但多数地区交通与经济的协调发展度还有待提升,大多数县市交通发展水平超前于经济发展水平。因此,如何在既有的交通优势条件下推进河南县域经济的快速发展,是实现河南交通与经济协调发展的关键问题。

Based on the establishment of indicator system which can synthetically evaluate county level transportation superiority degree and regional economic development level, county level transportation superiority and regional economic development in 2003 and 2008 in Henan province are synthetically appraised and analyzed by introducing Projection Pursuit Model （PPM）. And then, coupling-coordination degree between transportation superiority and regional economic development of each county is measured, compared and classified by the coupling-coordination model. Although all counties＇ transportation superiority degree and regional economic development level had a more significant upgrade during 2003-2008, their regional disparity was remarkable. Spatial pattern of each county＇s transportation superiority shifted from zonal distribution state along the main traffic lines to bulk distribution state. Transportation superiority degree was higher in Zhongyuan urban agglomeration areas than that in the perimeter areas, and it is also higher in plain areas than in the mountainous areas. The county level economic development was universally higher in western counties of Henan province than that in eastern Henan, and it is also universally higher in mountainous resources counties than in plain agricultural counties. Coupling degree between transportation superiority and economic development was highly and greatly enhanced during 2003-2008, while the coordination between transportation superiority and economic development needed to be promoted, and the transportation infrastructure of most counties are ahead of regional economic development. Under conditions of the ascendant transportation superiority, how to speed up counties＇ economic development is a key issue to achieve coordinated development between transportation and county level economy.