Career: Synthesis of Freight Origin-Destination Matrices from Intelligent Transportation Systems Data

0092938 ABSTRACTThe研究部分的建议，重点是设计一个方法框架，最终将导致估计的货物流动的始发地-目的地矩阵，使用二级数据，通过智能交通系统收集。这些方法将通过在建模过程中增加另一层现实主义来改善交通建模;它们将通过确保适当考虑货物流动来提高交通管理的效率，这是城市拥堵的重要因素。此外，加强对货物运输的考虑将有利于整个运输规划进程，使其真正成为多式联运。此类方法将绕过货运规划中的两个主要障碍：进行调查以获取起运地-目的地模式的巨额成本，以及货运提供商不愿提供他们认为商业敏感的信息。该研究计划有以下三个目标：1）根据通过智能运输系统在运输网络中收集的信息，开发一个实时合成起点-目的地矩阵的框架; 2）创建一个显示估计货运量的平台;以及3）开发将货物流动的实时信息整合到评估过程和交通控制策略分析中的方法。该提案考虑使用综合货运市场模拟（IFMS）。 综合货运管理系统试图全面描述货运情况，其中用户方面，即，商品流动和物流方面，即，汽车旅行，被认为是。货物运输的独特性要求用市场均衡的概念来描述货物运输供应商之间的竞争过程，并用一个路由问题的子集来描述这些公司在货物提取和交付时的行为。IFMS需要一个两级的方法，其中最高级别对应的估计提供的服务符合古诺-纳什均衡，而底层的重点是建设的图尔斯，满足古诺-纳什解决方案和剩余的系统约束，在一个大规模的优化问题的背景下。尽管在这一概念付诸实施之前还需要解决许多问题，但IFMS具有增强货运建模的潜力。本提案中包括一个综合教育计划。该教育计划旨在实现以下目标：a）为学生提供解决复杂问题的领导经验，如货运问题; B）在利益攸关方之间创造合作气氛; c）为本科生和研究生提供分析货运问题所需的工具; B）为学生提供交通与环境之间的相互作用的透彻理解，以及交通在改善当地社区中的作用; c）为学生提供终身追求卓越的基础;（d）为学生提供处理现实生活中问题的机会，并为解决这些问题作出贡献;（e）为少数民族学生和妇女提供有意义和有启发性的职业选择。实现这些目标将：a）引导培养新一代的运输专业人员，他们对货运、环境和经济发展之间的相互作用有着全面的认识; B）引导一个对社区关注和经济发展问题敏感并作出反应的运输规划过程; c）通过将现实生活中的问题和挑战纳入课堂互动来提高研究和教育的质量;（d）促进少数民族学生和妇女的留校率;（e）向学生介绍在多学科环境中使用现代信息技术的潜在好处。

0092938ABSTRACTThe research component of this proposal focuses on designing a methodological framework that, ultimately, will lead to the estimation of origin-destination matrices for freight movements, using secondary data, gathered through Intelligent Transportation Systems. These methodologies will improve transportation modeling by adding another layer of realism to the modeling process; and they will improve the efficiency of traffic management by ensuring proper consideration of freight movements, significant contributors to urban congestion. Furthermore, enhanced consideration of freight transportation will benefit the transportation planning process as a whole, making it truly multimodal in its scope. Such approaches will bypass two major obstacles in freight planning: the significant cost associated with conducting surveys to obtain origin-destination patterns, and the reluctance of freight providers to provide information they consider commercially sensitive. The research plan has the following three objectives: 1) to develop a framework for the synthesis of origin-destination matrices in real-time, based on information gathered through Intelligent Transportation Systems in transportation networks; 2) to create a platform for the display of estimated freight movements; and, 3) to develop methodologies for the integration of real-time information on freight movement into the evaluation process and the analysis of traffic control strategies. The proposal considers the use of the Integrative Freight Market Simulation (IFMS). The IFMS attempts to depict a comprehensive picture of freight movements, in which both the user side, i.e., commodity flows, and the logistic side, i.e., vehicle-trips, are considered. The uniqueness of freight transportation requires the use market equilibrium concepts to depict the competition process among freight transportation providers, and a subset of routing problems to represent the actions of these companies when picking up and delivering the goods. The IFMS entails a bi-level approach in which the top level corresponds to the estimation of the provision of service consistent with a Cournot-Nash equilibrium, while the bottom level focuses on the construction of tours that satisfy the Cournot-Nash solution and the remaining system constraints, in a context of a large scale optimization problem. Although a multitude of issues need to be solved before this concept becomes operational, the IFMS has the potential to enhance freight modeling.An integrated educational plan is included as part of this proposal. The educational plan is intended to achieve the following objectives: a) to provide students with leadership experience in addressing complex problems, such as those in freight transportation; b) to create an atmosphere of cooperation among stakeholders; c) to provide both undergraduate and graduate students with the tools they need to analyze freight transportation problems; b) to provide the students with a thorough understanding of the interplay between transportation and the environment, and the role of transportation in the betterment of local communities; c) to provide the students with the foundations for a life long search for excellence; d) to provide the students with the opportunity to tackle real-life problems and to contribute to their solution; e) to provide meaningful and stimulating career choices for minority students and women. Achieving these objectives will: a) lead to the creation of a new generation of transportation professionals with a wholistic view of the interactions between freight transportation, the environment and economic development; b) lead to a transportation planning process sensitive to, and responsive to, community concerns, and economic development issues; c) enhance the quality of research and education by incorporating real-life problems and challenges into the class room interactions; d) promote retention among minority students and women; e) introduce students to the potential benefits of using modern information technology in multi-disciplinary settings.