CAJ | 학술논문

城市化进程中，交通路网格局的发展与土地利用变化有着密切关系，交通系统的发展引起城市空间形态、土地利用开发、土地利用价格和用地布局特征的变化，反之，土地利用变化也引起了交通路网格局、路网密度的改变。本文以东莞市为例，对其交通路网密度与新增城市用地变化强度作了定量分析。根据TM遥感影像提取2001、2005和2009年3期的城市用地，采用核密度估算（KDE）新增城市用地变化强度，探讨区域内交通路网格局与新增城市用地变化强度的关系。结果表明，在2001-2005年间，路网格局变化较大，新增道路类型主要为高速路，新增城市用地总量较大、扩张速度快，特别是交通路网密度大的边缘区域。在2005-2009年间，随着路网发育不断成熟，路网密度内部差异减少，新增道路类型主要为县乡道路，新增城市用地速度明显放缓。经相关系数显著性检验后表明：2001-2009年间，在置信度为95%时，东莞市道路网密度、加权密度（x）与新增城市用地核密度（y）的相关系数Rxy均大于0.1946，证明东莞市道路网密度、加权密度与新增城市用地核密度高度相关。
성시화진정중，교통로망격국적발전여토지이용변화유착밀절관계，교통계통적발전인기성시공간형태、토지이용개발、토지이용개격화용지포국특정적변화，반지，토지이용변화야인기료교통로망격국、로망밀도적개변。본문이동완시위례，대기교통로망밀도여신증성시용지변화강도작료정량분석。근거TM요감영상제취2001、2005화2009년3기적성시용지，채용핵밀도고산（KDE）신증성시용지변화강도，탐토구역내교통로망격국여신증성시용지변화강도적관계。결과표명，재2001-2005년간，로망격국변화교대，신증도로류형주요위고속로，신증성시용지총량교대、확장속도쾌，특별시교통로망밀도대적변연구역。재2005-2009년간，수착로망발육불단성숙，로망밀도내부차이감소，신증도로류형주요위현향도로，신증성시용지속도명현방완。경상관계수현저성검험후표명：2001-2009년간，재치신도위95%시，동완시도로망밀도、가권밀도（x）여신증성시용지핵밀도（y）적상관계수Rxy균대우0.1946，증명동완시도로망밀도、가권밀도여신증성시용지핵밀도고도상관。
With the development of urbanization, there is a close relationship between the structure of urban traf-fic network and urban spatial expansion. Development of traffic system is caused by urban spatial form, land use development, land price and land use layout feature changes, conversely, land use change also acts on the struc-ture of urban traffic network and road density. How to quantitatively describe the strength of urban road network density and urban land-use change is a key scientific issue. This research takes Dongguan City as an example, through remote sensing images in 2001, 2005 and 2009, using the kernel density estimation (KDE) to describe the intensity of newly added urban land use and explore the relationship between urban road network density and urban spatial expansion. The results showed that, during the period of 2001-2005, the city had a great change in road network with the highway as the mainly new road type. Urban expansion was rapid, with a relatively large amount of newly added urban land use area, especially in the edge region where the road network density is high. During the period of 2005-2009, with the development of road network, county road was the mainly new road type, and the newly added urban land use growth also slowed down. The significance test of correlation co-efficient showed:during 2001-2009 period in Dongguan City, at the confidence level of 95%, the correlation co-efficient R(xy) of the road network density, of the weighted density (x) and of the kernel density (y) are all larger than 0.1946, which indicated that those three factors are significantly related.