基于高速公路交通量的城市交通联系强度评价

Evaluation of Urban Traffic Connection Strength Based on Expressway Traffic Volume

为了量化城市间基于高速公路交通量的交通联系强度,提出将高速公路基础设施供给与实际产生的交通量协同考虑的计算方法。基于江苏省高速公路所有进出口的年平均日交通量OD数据,结合城市间高速公路里程及长途客车双向发车班次数据,分别计算江苏省13个地级行政区之间基于高速公路的交通联系强度,并基于此分析江苏省各城市的首位联系城市及次位联系城市。结果表明,苏州市与江苏省其他城市的交通联系最强,且苏州与无锡、常州共同构成的苏锡常都市圈也对区域交通产生较大影响;南京、南通等与其他城市交通联系强度较大的城市,因其经济发展水平、地理位置等优势,形成了区域交通中心,对周边城市交通的辐射带动作用大。

A calculation method for the collaborative analysis of highway infrastructure supply and actual generated traffic volume is proposed to quantify the strength of traffic connection between cities.Based on the annual average daily traffic origin-destination data of all entrances and exits of Jiangsu expressways,combined with the mileage of intercity expressways and bus departure data,the highway-based traffic connection strengths among 13 prefecture-level administrative regions were calculated.Then,the primary city and secondary connection city were analyzed.The results show that Suzhou has the strongest transportation connection to other cities in Jiangsu Province,and the Su-Xi-Chang region area has a large impact on regional traffic.Because of their advantages of economic development level and geographical location,Nanjing,Nantong,and other cities with stronger transportation connections have also formed regional transportation centers that play a significant role in radiating the surrounding urban traffic.