CAJ | 학술논문

为定量评价城市结点对外交通模式的合理性，考虑路网均衡状态下的出行成本、路网容量和服务水平等因素，提出了一种改进的路网效率测度指标。应用该指标构造测试路网，分析了不同交通量水平、不同对外交通需求结构下城市结点对外交通组织模式的适用性。研究表明：在城市内部路网富余通行能力不大的情况下，当干线公路交通量小于750 pcu/h时，干线公路可直接接入内部道路系统；当干线公路交通量在750～2000 pcu/h且主要为出入境交通时，宜将对外交通引入城市结点快速干道系统，通过快速干道系统集中组织对外交通；当干线公路交通量大于2000 pcu/h且存在较为集中的过境交通时，宜设置直接式过境通道分离过境交通。所提出的路网效率测度指标和研究结果对城市结点对外交通组织方案的决策具有指导意义。
위정량평개성시결점대외교통모식적합이성，고필로망균형상태하적출행성본、로망용량화복무수평등인소，제출료일충개진적로망효솔측도지표。응용해지표구조측시로망，분석료불동교통량수평、불동대외교통수구결구하성시결점대외교통조직모식적괄용성。연구표명：재성시내부로망부여통행능력불대적정황하，당간선공로교통량소우750 pcu/h시，간선공로가직접접입내부도로계통；당간선공로교통량재750～2000 pcu/h차주요위출입경교통시，의장대외교통인입성시결점쾌속간도계통，통과쾌속간도계통집중조직대외교통；당간선공로교통량대우2000 pcu/h차존재교위집중적과경교통시，의설치직접식과경통도분리과경교통。소제출적로망효솔측도지표화연구결과대성시결점대외교통조직방안적결책구유지도의의。
For quantitatively evaluating the rationality of organization mode of external traffic in city area, a new measurement for road network efficiency is proposed under consideration of travel costs of equilibrium networks, and the capacity and service level of road networks.By the suggested measurement, a test road network is built and the applicability of organization mode of external traf-fic in city area is analyzed under different traffic levels and various external traffic demand struc-tures.The results indicate that the arterial highway can be directly joined to the internal road system when its traffic is less than 750 pcu/h and the spare capacity of urban road network is not big.The external traffic should be led into the express road system in city area for the centralized organization when the traffic on the arterial highway is 750 to 2 000 pcu/h and mainly composed of internal-exter-nal trips.In addition, a direct through route should be set up to separate through traffic if the traffic on the arterial highway is more than 2 000 pcu/h and contains a large proportion of external-external trips.The proposed measurement for road network efficiency and the research results are of guiding significance to the scheme decision of external traffic organization in city area.