Capacity Research in Urban Rail-bounded Transportation with Special Consideration of Mixed Traffic

在城市混合交通区内，轨道交通受到由车辆和行人组成的个体交通的强烈影响。因此，城市混合交通也会影响轨道有界系统的能力研究结果。为了提高城市轨道有界系统容量研究的准确性，本课题将建立考虑混合交通的城市轨道有界交通仿真模型，并对各种影响因素进行系统的通用随机描述。由于城市轨道交通的随机影响，利用容量研究的模拟方法得到的等待时间函数将适应混合交通条件。对于现有的方法，必须大大减少过程的时间和费用，并且必须提高模型适应各种调查情况的灵活性；此外，还必须用系统的方法描述与模型相关的城市轨道交通和个人交通之间的相互作用。有两种方法将被开发。一种方法——建模方法——是通过开发一种系统的评估方法，这种方法可以独立于特定的应用程序来确定重要的基础设施部分。在这些基础设施区段上，单个运输在模型中被建模为轨道边界运输。利用该方法，可以利用现有的知识在仿真中直接描述对城市轨道交通的影响。必须推导出个体运输和轨道有界运输之间不同的交通负荷变化率。另一种方法——分布方法——包括将个体运输引起的随机影响描述为数学分布的扰动。此外，通过系统的分析和分类，可以将仿真方法中的一些本质影响转化为轨道有界模型的特征，从而简化了对某些典型情况下随机影响的描述。为了分析和分类，将事先审查数据收集和影响的敏感性分析。将这两种方法与现有方法进行比较，并描述两种方法的改进之处。此外，将通过使用不同的应用程序来比较两种方法的影响。

In urban mixed traffic zones, the rail-bounded transport is strongly influenced by the individual transport, which is comprised of individual vehicles and pedestrians. Accordingly, the urban mixed traffic also impacts on the results of capacity research of rail-bounded systems. In order to improve the accuracy of capacity research for urban rail-bounded systems, a simulation model for urban rail-bounded transport with consideration of mixed traffic integrated with the systematic universal stochastic description of the various influences will be derived in this proposed research project. As a result of the stochastic influences on urban rail-bounded transport, the waiting time function, which results from the simulation methodology of capacity research will be adapted to mixed traffic conditions. For the existing method, the time and expenses for the process have to be considerably reduced, and the flexibility of model adapted to various investigated situations has to be improved; in addition, the systematic methodological description of the interaction between the urban rail-bounded transport and individual transport in correlation to the model has to be represented. There are two approaches will be developed. One approach - the Modeling Approach - is by developing a systematic assessment method, which can be used independently of specific applications for the determination of the significant infrastructure sections. On these infrastructure sections, the individual transportation is modeled as rail-bounded transport in model. With this approach, the influences on urban rail-bounded transport can be universally described directly in simulation by usage of existing knowledge. The different changing rates of traffic loads between individual and rail-bounded transportation have to be derived. Another approach - the Distribution Approach - includes the description of the stochastic influences caused by individual transportation as perturbation by mathematical distributions. Moreover, through a systematic analysis and categorization, some of the essential influences can be transferred into the characteristics of the rail-bounded model in the simulation method, which simplifies the description of the stochastic influences in certain typical situations. For analysis and categorization, gathering of data and sensitivity analysis for influences will be examined in advance. The two approaches will be compared with the existing method and the improvement of the two approaches will be described. In addition, the comparison of the impacts of the two approaches will be exposed by using various applications.