Transportation System Management PDF Download

Author: United States. Department of Transportation
Publisher:
ISBN:
Category : Urban transportation policy
Languages : en
Pages : 94

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Author: Cambria County Planning Commission
Publisher:
ISBN:
Category : Traffic engineering
Languages : en
Pages : 168

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Author: United States. General Accounting Office
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 92

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Book Description

Author: United States. General Accounting Office
Publisher:
ISBN:
Category : Urban transportation policy
Languages : en
Pages : 44

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Book Description
Traffic congestion on the nation's highways and streets continues to increase and affect mobility, energy conservation, and air quality. GAO evaluated federal efforts to encourage better management of the nation's highways through the use of low-cost transportation systems management techniques. Overall, GAO found that the federal government plays an important role in facilitating the local implementation of such techniques to reduce congestion and improve air quality. This role includes funding assistance, planning requirements, and technical support. These current efforts have not, however, been fully successful in achieving widespread transportation systems management--and particularly transportation demand management--usage. GAO found that: (1) TSM encompasses low-cost techniques for improving the efficiency of surface transportation, including supply management techniques, which include traffic signal coordination and ramp metering, and transportation demand management techniques, which include carpooling and vanpooling; (2) federal efforts to achieve widespread TSM usage have not been fully successful; (3) over the last decade, the actual total expenditures for TSM with federal aid has remained small relative to total allocations; (4) although the federal government has sought to promote better supply and demand management by including certain TSM projects under an incentive provision that included other operational improvements, the provision has not significantly influenced the amount of TSM implemented; (5) transportation planning requirements alone appear to be insufficient to guarantee that TSM and transportation demand management are implemented, due to local reluctance to fully embrace transportation demand management and an uncertain connection between transportation planning and any consequent project funding; (6) federal policy could further support innovative strategies to better manage traffic demand through ongoing technical assistance; and (7) due to 1990 Clean Air Act requirements, the need for technical assistance could increase greatly.

Author: R. Craig Hupp
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 76

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 556

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Author:
Publisher: DIANE Publishing
ISBN: 9781568066172
Category :
Languages : en
Pages : 200

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Book Description
Reviewed federal efforts to promote more efficient management of America's roadway systems through transportation systems management (TSM) techniques. Also examines the extent to which air quality concerns affected the inclusion of TSM activities in the local transportation planning process. Charts & tables.

Author: Howard J. Simkowitz
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 46

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Author: Nathan Jacobson
Publisher: Springer Science & Business Media
ISBN: 3642024297
Category : Mathematics
Languages : en
Pages : 290

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Book Description
Here, the eminent algebraist, Nathan Jacobsen, concentrates on those algebras that have an involution. Although they appear in many contexts, these algebras first arose in the study of the so-called "multiplication algebras of Riemann matrices". Of particular interest are the Jordan algebras determined by such algebras, and thus their structure is discussed in detail. Two important concepts also dealt with are the universal enveloping algebras and the reduced norm. However, the largest part of the book is the fifth chapter, which focuses on involutorial simple algebras of finite dimension over a field.

Author: Glen A Hansen
Publisher: World Scientific
ISBN: 1783260564
Category : Mathematics
Languages : en
Pages : 533

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This book focuses on mesh (grid) enhancement techniques — specifically, the use of selected elliptic methods for both structured and unstructured meshes associated with computational physics applications. Mesh enhancement is the process in which an existing mesh is modified to better meet the requirements of the physics application. To provide the reader with sufficient background information, seven of the nine chapters contain a summary of the numerical simulation process, basic background on mesh terminology and generation approaches, computational geometry, discretization of differential equations, methods of solving linear and nonlinear algebraic systems, geometry of surfaces in Euclidean space, and general elliptic methods for mesh enhancement. Furthermore, these chapters use the concept of harmonic coordinates to develop a unifying framework, the Laplace-Beltrami system, which is the governing principle of the book. The final two chapters apply this scheme, along with other selected elliptic methods, to various structured and unstructured example problems./a