中文摘要：

利用可达性模型并结合GIS反距离加权插值技术综合测度了哈大高铁通车前后沿线城市的可达性及其空间格局的演变,研究表明：哈大高铁通车前后,时空压缩效果显著,城市可达性得到大幅提升;可达性改善程度存在明显的空间差异,位于高铁线路中间的城市提升较大,首末城市提升较小;城市可达性的动态变化加速了东北地区空间格局的演变,空间分化与重构现象日趋复杂,辽中南城市群分化成沈阳经济区和沿海经济带,吉林中部和哈尔滨都市圈重组成哈长经济区,哈大高铁轴带人口、经济的空间极化将进一步提升,中心城市的扩散域突破传统的空间尺度甚至行政区划的范畴,部分城市空间隶属关系模糊。

英文摘要：

Taking advantage of accessibility model and IDW of GIS, we measure the evolution of urban accessibility and its spatial pattern before and behind the openings of Harbin-Dalian high-speed rail. The results show that： bcfore and behind openings of high-speed rail, the effect of compression of time and distance is remarkable. Urban accessibility has dramatically improved. The degree of accessibility improvement has obvious spatial differences. The accessibility improvement of intermediate line is larger, the beginning and end of line is smaller. The dynamic changes of urban accessibility accelerate the evolution of spatial pattern in Northeast China. Spatial differentiation and restruction become increasingly complex. The MSLUA will be seperated into Shenyang Economic Zone and Coastal Economic Belt. The central Jilin and Harbin metropolitan circle will restruct into Harbin-Changchun Economic Integration. The spatial polarization of population and economy in Harbin-Dalian high-speed rail shaft will further enhance. The spread of central cities has broken the traditional spatial scale and the category of administrative division. The subordination in part of cities becomes fuzzy.