Promoting Intermodal Connectivity at California’s High Speed Rail Stations

High-speed rail (HSR) has emerged as one of the most revolutionary and transformative transportation technologies, having a profound impact on urban-regional accessibility and inter-city travel across Europe, Japan, and more recently China and other Asian countries. One of HSR’s biggest advantages over air travel is that it offers passengers a one-seat ride into the center of major cities, eliminating time-consuming airport transfers and wait times, and providing ample opportunities for intermodal transfers at these locales. Thus, HSR passengers are typically able to arrive at stations that are only a short walk away from central business districts and major tourist attractions, without experiencing any of the stress that car drivers often experience in negotiating such highly congested environments. Such an approach requires a high level of coordination and planning of the infrastructural and spatial aspects of the HSR service, and a high degree of intermodal connectivity. But what key elements can help the US high-speed rail system blend successfully with other existing rail and transit services? That question is critically important now that high-speed rail is under construction in California. The study seeks to understand the requirements for high levels of connectivity and spatial and operational integration of HSR stations and offer recommendations for seamless, and convenient integrated service in California intercity rail/HSR stations. The study draws data from a review of the literature on the connectivity, intermodality, and spatial and operational integration of transit systems; a survey of 26 high-speed rail experts from six different European countries; and an in-depth look of the German and Spanish HSR systems and some of their stations, which are deemed as exemplary models of station connectivity. The study offers recommendations on how to enhance both the spatial and the operational connectivity of high-speed rail systems giving emphasis on four spatial zones: the station, the station neighborhood, the municipality at large, and the region

Towards the Internet of Smart Trains: A Review on Industrial IoT-Connected Railways

[Abstract] Nowadays, the railway industry is in a position where it is able to exploit the opportunities created by the IIoT (Industrial Internet of Things) and enabling communication technologies under the paradigm of Internet of Trains. This review details the evolution of communication technologies since the deployment of GSM-R, describing the main alternatives and how railway requirements, specifications and recommendations have evolved over time. The advantages of the latest generation of broadband communication systems (e.g., LTE, 5G, IEEE 802.11ad) and the emergence of Wireless Sensor Networks (WSNs) for the railway environment are also explained together with the strategic roadmap to ensure a smooth migration from GSM-R. Furthermore, this survey focuses on providing a holistic approach, identifying scenarios and architectures where railways could leverage better commercial IIoT capabilities. After reviewing the main industrial developments, short and medium-term IIoT-enabled services for smart railways are evaluated. Then, it is analyzed the latest research on predictive maintenance, smart infrastructure, advanced monitoring of assets, video surveillance systems, railway operations, Passenger and Freight Information Systems (PIS/FIS), train control systems, safety assurance, signaling systems, cyber security and energy efficiency. Overall, it can be stated that the aim of this article is to provide a detailed examination of the state-of-the-art of different technologies and services that will revolutionize the railway industry and will allow for confronting today challenges.Galicia. Consellería de Cultura, Educación e Ordenación Universitaria; ED431C 2016-045Galicia. Consellería de Cultura, Educación e Ordenación Universitaria; ED341D R2016/012Galicia. Consellería de Cultura, Educación e Ordenación Universitaria; ED431G/01Agencia Estatal de Investigación (España); TEC2013-47141-C4-1-RAgencia Estatal de Investigación (España); TEC2015-69648-REDCAgencia Estatal de Investigación (España); TEC2016-75067-C4-1-

Expedite requests in Raytheon's North Texas supply chain

Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; in conjunction with the Leaders for Manufacturing Program at MIT, 2006.Includes bibliographical references (p. 69-70).In December 2004, a manager at Raytheon Company articulated in the form of an LFM (Leaders for Manufacturing) internship proposal his belief that someone should do something about the amounts of time and money that Raytheon's North Texas plants spent handling expedite requests-requests that someone provide goods or services more quickly than normal. This thesis attempts to summarize the thoughts, learnings, initiatives, and outcomes associated with the ensuing effort. In particular, a large section of the paper is devoted to a case study of the most involved initiative: the devising and implementing of a new dispatching method in one small but central operation in an organization with a long history of processing things first in, first out. While for the project team the compelling factor was achieving a specific dollar impact, the reader of this paper will probably be more interested in the methodology than in Raytheon's ROI. Research for this thesis was conducted during a six-month internship with Raytheon Company's Space and Airborne Systems Supply Chain Management group in McKinney, TX, and Dallas, TX. The internship was affiliated with the Massachusetts Institute of Technology's Leaders for Manufacturing (LFM) Program.by Scott K. Hiroshige.S.M.M.B.A

Design requirements for SRB production control system. Volume 5: Appendices

A questionnaire to be used to screen potential candidate production control software packages is presented

The operation of eVTOLs in the urban air mobility sector : use case & operator assessment

Electric vertical takeoff and landing (eVTOL) technology enables a sustainable form of aviation for currently unserved connections. eVTOLs can reduce the carbon emissions of the aviation industry by replacing conventional helicopters and smaller aircrafts. In addition, traffic congestion in large cities can be decreased and travel times shortened. This thesis examines which use case is offered to the passengers. In addition, the prospective urban air mobility (UAM) market player that is expected to become a potential operator in the short term is summarized, alongside the value proposition (VP), key resources (KR), key activities (KA), and key partnerships (KP) of an eVTOL operator. The findings have been obtained through a qualitative research approach questioning 16 UAM experts, commercial as well as private aviation companies. The results reveal that eVTOL manufacturers are going to be the first market players to operate eVTOLs in the short to medium term. Commercial airlines are expected to step into the market in the long term. Interviews have additionally shown that airport shuttles will be the first served use case. The primary value proposition is saving time for the passengers. The primary key resource is human staff. The primary key activity is eVTOL maintenance. The primary key partnership is with the infrastructure provider and/or operator. Furthermore, this research adds value to the existing UAM literature on eVTOL operators, first commercially offered use cases as well as elements of an operator’s business model.A tecnologia de decolagem e aterrissagem vertical elétrica (eVTOL) permite uma forma sustentável de aviação para conexões atualmente não atendidas. Os eVTOLs podem reduzir as emissões de carbono da indústria da aviação substituindo helicópteros convencionais e aeronaves menores. Além disso, o congestionamento do tráfego nas grandes cidades pode ser reduzido e os tempos de viagem reduzidos. Esta tese examina qual caso de uso é oferecido aos passageiros. Além disso, o potencial participante do mercado de mobilidade aérea urbana (UAM) que deve se tornar um operador potencial no curto prazo é resumido, juntamente com a proposta de valor (VP), recursos-chave (KR), atividades-chave (KA) e parcerias (KP) de um operador eVTOL. Os resultados foram obtidos por meio de uma abordagem de pesquisa qualitativa questionando 16 especialistas, empresas de aviação comercial e privada. Os resultados revelam que os fabricantes de eVTOL serão os primeiros players do mercado a operar eVTOLs no curto e médio prazo. Espera-se que as companhias aéreas comerciais entrem no mercado a longo prazo. As entrevistas também mostraram que os ônibus do aeroporto serão o primeiro caso de uso servido. A principal proposta de valor é economizar tempo para os passageiros. O recurso-chave primário é a equipe humana. A atividade de chave primária é a manutenção do eVTOL. A parceria de chave primária é com o provedor e/ou operador de infraestrutura. Além disso, esta pesquisa agrega valor à literatura UAM existente sobre operadoras eVTOL, primeiros casos de uso oferecidos comercialmente, bem como elementos do modelo de negócios de uma operadora

Application of computer-aided dispatch in law enforcement: An introductory planning guide

A set of planning guidelines for the application of computer-aided dispatching (CAD) to law enforcement is presented. Some essential characteristics and applications of CAD are outlined; the results of a survey of systems in the operational or planning phases are summarized. Requirements analysis, system concept design, implementation planning, and performance and cost modeling are described and demonstrated with numerous examples. Detailed descriptions of typical law enforcement CAD systems, and a list of vendor sources, are given in appendixes

Activities of the NASA sponsored SRI technology applications team in transferring aerospace technology to the public sector Quarterly progress report, 1 Jul. - 30 Sep. 1969

Aerospace technology utilization in air pollution, criminalistics, and public transportatio

A study on emerging transportation services based on efficient network design and operation

Rapid growth in modern technologies has provided new tools for flexible and convenient transportation to the public. These new avenues for commuting would enable promoting non-driving modes of conveyance while shifting the economics of movement via traditional methods such as cars, subways, buses, etc. These innovative services would be advantageous in reducing dependability on privately-owned vehicles, thereby reducing the impact on the environment while providing a faster mode of travel. They would also play a crucial role in decreasing bottleneck due to heavy traffic, which has a detrimental impact on people's health, lifestyle and productivity. Thus, logistic companies are aiming towards making use of emerging technologies, such as air taxis and hyperloop, for facilitating efficient transportation in the near future. In this dissertation, a unique two-phase procedure integrating a multi-criteria warm start technique with an iterative k-means clustering algorithm is developed for optimal air taxi infrastructure location decisions. The proposed methodology was improved by utilizing a different clustering technique called clustering large applications (CLARA) which suggests developing 14 unique sites in New York City (NYC). However, establishing all the stations simultaneously might be challenging for any business, and therefore, a mathematical model is created to recommend these centers in multiple phases while maximizing the demand satisfaction in each scenario. Based on the available transportation literature, constraints such as rental cost, number of trips per day per 1000 customers, road facilities, and the employee salary are considered to be a part of the linear model. Next, a multiple-criteria simulation optimization model is developed to determine the ideal station size, location and size of charging facilities, minimum threshold charge, number of vehicles required and, allocating customers to air taxis for a network of five skyports. The model proposes having 50 air taxis in the system for the base case. The commuter average time in system and wait time to be approximately 36 and 14 minutes respectively, with average vehicle utilization of nearly 76 percent. While air taxis are expected to be utilized for intra-city commute, Hyperloop and High-Speed Rail (HSR) services would enable passengers for inter-city transport . A brief investigation is performed to examine the substitutability of HSR with Hyperloop services based on vehicle and passenger characteristics. A simulation model is developed to compare the performance of both these alternate transportation modes for a network of three major cities in Europe (Amsterdam, Paris, and Frankfurt). Our results indicate that with a significantly lower pod capacity, the Hyperloop system will still be able to serve more customers compared to the HSR services, while the vehicle utilization is observed to be higher in the latter alternative for a given period of time. We further compare the two transportation modes with respect to their estimated infrastructure and operational costs as well as CO2 emission. Finally, a cost-benefit analysis is conducted to estimate the passenger ticket price for Hyperloop services.Includes bibliographical references