京津冀科技创新网络的高铁驱动与模拟研究

Driving Characteristics and Simulation of High-speed Rail to Science and Technology Innovation in Beijing-Tianjin-Hebei Region

研究目的:纵横交错的高铁网络是要素联通的重要支撑,是区域协同创新的脉博。论文通过修正后的引力模型和社会网络分析法研究高铁与非高铁方式下京津冀科技创新联系特征,在此基础上应用系统动力学仿真高速铁路属性对京津冀区域科技创新的影响。研究结论:(1)高铁条件下的京津冀区域间科技联系明显有所加强;(2)加入延迟函数的SD模拟结果显示高速铁路服务随着时间变化,对区域的科技创新能力的促进效果逐渐提升,说明高速铁路在促进区域科技创新的作用上存在着一定的延迟性特征。但延迟性对科技创新系统存在着负向作用,可能会弱化区域科技创新成果的即时效应;(3)加入阶跃函数表明增加高铁里程密度,对科技创新有促进作用,使得科技创新数量增加,并且增加的百分比逐步提高;(4)本研究结果可为高铁建设资源的空间配置和优化管理提供决策参考。

Research purposes:Crisscrossing network of high-speed rail is an important support for factor connectivity and the pulse of regional collaborative innovation.Based on the revised gravity model and social network analysis method,this paper studies the connection characteristics of Beijing-Tianjin-Hebei region science and technology innovation in the case of high-speed rail and non-high-speed rail,and then uses system dynamics to simulate the impact of high-speed rail attributes on Beijing-Tianjin-Hebei science and technology innovation in the region.Research conclusions:(1)The regional scientific and technological connection in Beijing-Tianjin-Hebei region has been significantly strengthened under the condition of high-speed rail.(2)The SD simulation results with the delay function show that with the change of time,the promotion effect of high-speed railway service on regional scientific and technological innovation ability is gradually improved,which indicates that high-speed railway has a certain delay feature in promoting regional scientific and technological innovation.However,delay has a negative effect on the system of scientific and technological innovation,which may weaken the immediate effect of regional scientific and technological innovation achievements.(3)The addition of step function shows that increasing the mileage density of high-speed railway has a promoting effect on scientific and technological innovation,and makes the number of scientific and technological innovation increase,and the increase percentage gradually increases.(4)The research results can provide reference for decision-making of spatial allocation and optimal management of high-speed railway construction resources.