Nexus: connected simulation platform for operational management and planning of transit networks

拟议的研究计划有两个主要目标，即开发一个高保真的交通网络建模平台（称为Nexus），用于有效的决策支持，以及构建大多伦多地区（GTA）多式联运交通网络的详细微观模拟模型。Nexus将允许交通机构和研究人员通过连接各种可用的软件系统来建立现实的交通网络模型，这些软件系统专门用于模拟地面交通运营、火车运动和人群流动，同时结合动态修改交通服务和估计系统响应的能力。这种方法旨在通过准确和连贯地表示通过这些复杂网络的所有乘客和车辆的综合流量，促进大规模多式联运网络的现实建模。使用Nexus开发的GTA交通网络模型将使当地交通机构能够进行规划和运营分析，并将为多伦多大学交通研究小组的研究人员提供一个校准的测试网络。Nexus还将成为过去和未来交通用户行为和交通运营模式的综合平台。

The proposed research programme has two prime objectives, namely the development of a high-fidelity transit network modelling platform (called Nexus) for effective decision support and the construction of a detailed micro-simulation model of the multi-modal transit network of the Greater Toronto Area (GTA). Nexus will allow transit agencies and researchers to build realistic transit network models by connecting various available software systems specialized in modelling surface transit operations, train movements and crowd flows, while incorporating the ability to dynamically modify transit service and estimate system response. This approach is intended to facilitate the realistic modelling of large-scale multi-modal transit networks by representing accurately and cohesively the integrated flows of all passengers and vehicles through these complex networks. The development of the GTA transit network model using Nexus will enable planning and operations analysis by the local transit agencies, and will provide a calibrated test network for researchers to use within the University of Toronto transit research group. Nexus is also being targeted as an integrating platform for past and future models of transit user behaviour and transit operations.