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Multimodal Optimization of Urban Freeway Corridors

Author : Brennan Kidd

Publisher :

Page : 140 pages

File Size : 34,2 MB

Release : 2006

Category : Express highways

ISBN :

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The findings of the study are two-fold: the results of what forms of multi-modal travel are used by other states and the results of the case study. Many states employ or are planning high occupancy vehicle (HOV) lanes (of all forms/types, but primarily of the concurrent flow variety) for use in urban freeway settings. High occupancy/toll (HOT) lanes were in the planning stages according to about half of the survey respondents while bus rapid transit (BRT) was being considered by two-thirds of the departments responding. Light rail transit (LRT) was only listed in 33% of the responses as being currently in use. HOT Lanes, Exclusive-Use Lanes, By-pass/Separation Lanes, Dual Facilities, and LRT had the highest number of responses for not being used as a multi-modal application within a freeway corridor. The SR 51 case study relied on existing data, modeled situations, and cost estimates to determine the most cost effective choice for multi-modal travel. Existing volume data was provided by Arizona Department of Transportation's Freeway Management System (FMS) and supplemented by a microsimulation study previously conducted for the Arizona Department of Transportation concerning the operations of the existing HOV lanes. Cost data was coalesced from literature review material and transportation data sources exclusive to Arizona. The computations factored in traffic flows under different freeway scenarios depicting different forms of multi-modal travel that would be reasonable for the SR 51 freeway. The results, ranked from most cost-effective to least cost-effective, are as follows (Note: "GP" refers to general purpose lane, and the ranges of cost values are due to different calculation methods for the projected volume by mode): (1) HOT Lane ($0.012 to $0.027 per person-mile) (2) Fourth GP Lane ($0.019 to $0.042 per person-mile) (3) HOV (w/BRT) Lane ($0.026 to $0.057 per person-mile) (existing condition) (4) Exclusive BRT Lane ($0.066 to $0.147 per person-mile) (5) Light Rail Transit ($0.161 to $0.358 per person-mile).











Encyclopedia of Transportation

Author : Mark Garrett

Publisher : SAGE Publications

Page : 3181 pages

File Size : 40,65 MB

Release : 2014-08-13

Category : Social Science

ISBN : 1483389804

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Book Description

Viewing transportation through the lens of current social, economic, and policy aspects, this four-volume reference work explores the topic of transportation across multiple disciplines within the social sciences and related areas, including geography, public policy, business, and economics. Features: Approximately 675 signed articles authored by prominent scholars are arranged in A-to-Z fashion and conclude with Further Readings and cross references. A Chronology helps readers put individual events into historical context; a Reader’s Guide organizes entries by broad topical or thematic areas; a detailed index helps users quickly locate entries of most immediate interest; and a Resource Guide provides a list of journals, books, and associations and their websites. While articles were written to avoid jargon as much as possible, a Glossary provides quick definitions of technical terms. To ensure full, well-rounded coverage of the field, the General Editor with expertise in urban planning, public policy, and the environment worked alongside a Consulting Editor with a background in Civil Engineering. The index, Reader’s Guide, and cross references combine for thorough search-and-browse capabilities in the electronic edition. Available in both print and electronic formats, Encyclopedia of Transportation is an ideal reference for libraries and those who want to explore the issues that surround transportation in the United States and around the world. Key Themes: Administration, Operations, and Evaluation Air Transportation Systems Economics of Transportation Energy, Environmental, and Health Impacts Facilities and Infrastructure Intermodal Transportation Systems International Transportation and Policy Labor Issues/Employee Relations Planning and Policy Safety and Security Social Issues in Transportation Surface Transportation Systems Technology, Design, and Engineering Transportation, Finance of Transportation Legislation Transportation Modeling Transportation Organizations and Agencies Travel Behavior and Research Water Transportation Systems



TIMS/ORSA Bulletin

Author : Institute of Management Sciences

Publisher :

Page : 592 pages

File Size : 34,62 MB

Release : 1978

Category : Industrial management

ISBN :

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Very Large Floating Structures

Author : C.M. Wang

Publisher : CRC Press

Page : 251 pages

File Size : 50,34 MB

Release : 2007-09-12

Category : Technology & Engineering

ISBN : 0203934601

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Book Description

Groundbreaking and comprizing articles by expert contributors, this volume provides a comprehensive treatment of VLFSs and their relationship with the sea, marine habitats, the pollution of costal waters and tidal and natural current flow. It looks in-depth at: VLFS and the colonization of ocean space with their appearance in the waters off developed coastal cities wave properties, which is essential for estimating the loading on the VLFS as well as for modelling structure-fluid interactions hydroelastic and structural analysis of VLFS at an overall level and the cell level the analysis and design of breakwaters simulation models to understand the actual flow of water through the VLFS and to determine the drift forces for the mooring systems anti-corrosion and maintenance systems new research and developments, with emphasis on the Mega-Float, a 1 km long floating test runway. Well-illustrated with photographs, drawings, equations for mathematical modelling and analysis and extensively referenced, Very Large Floating Structures is ideal for professionals, academics and students of civil and structural engineering.



Modeling and Optimization of Air Traffic

Author : Daniel Delahaye

Publisher : John Wiley & Sons

Page : 191 pages

File Size : 38,97 MB

Release : 2013-07-01

Category : Computers

ISBN : 1118743717

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Book Description

This book combines the research activities of the authors, both of whom are researchers at Ecole Nationale de l’Aviation Civile (French National School of Civil Aviation), and presents their findings from the last 15 years. Their work uses air transport as its focal point, within the realm of mathematical optimization, looking at real life problems and theoretical models in tandem, and the challenges that accompany studying both approaches. The authors’ research is linked with the attempt to reduce air space congestion in Western Europe, USA and, increasingly, Asia. They do this through studying stochastic optimization (particularly artificial evolution), the sectorization of airspace, route distribution and takeoff slots, and by modeling airspace congestion. Finally, the authors discuss their short, medium and long term research goals. They hope that their work, although related to air transport, will be applied to other fields, such is the transferable nature of mathematical optimization. At the same time, they intend to use other areas of research, such as approximation and statistics to complement their continued inquiry in their own field. Contents 1. Introduction. Part 1. Optimization and Artificial Evolution 2. Optimization: State of the Art. 3. Genetic Algorithms and Improvements. 4. A new concept for Genetic Algorithms based on Order Statistics. Part 2. Applications to Air Traffic Control 5. Air Traffic Control. 6. Contributions to Airspace Sectorization. 7. Contribution to Traffic Assignment. 8. Airspace Congestion Metrics. 9. Conclusion and Future Perspectives. About the Authors Daniel Delahaye works for Ecole Nationale de l’Aviation Civile (French National School of Civil Aviation) in France. Stéphane Puechmorel works for Ecole Nationale de l’Aviation Civile (French National School of Civil Aviation) in France.