As the foremost scientific journal in the cross-disciplinary research field of transportation systems analysis, Transportation Science publishes high-quality original contributions on phenomena associated with all modes of transportation–present and prospective; all levels of planning–strategic, tactical, and operational; and all types of impact–economic, social, and environmental. Transportation Science focuses primarily on fundamental theories, coupled with observational and experimental studies of transportation and logistics phenomena and processes, mathematical models, advanced methodologies, and novel applications in transportation and logistics systems analysis, planning, and design. The journal covers a broad range of topics, including, but not limited to, transportation system design and optimization; traffic flow theories and models, and their application to traffic operations and management; strategic, tactical, and operational planning of transportation and logistics systems; economics of transportation systems; analysis of transportation user behavior; and the demand for transportation and logistics services.