Access Control Design On Highway Interchanges
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Access Control Design On Highway Interchanges
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Author :
language : en
Publisher:
Release Date : 2008
Access Control Design On Highway Interchanges written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Express highways categories.
The adequate spacing and design of access to crossroads in the vicinity of freeway ramps are critical to the safety and traffic operations of both the freeway and the crossroad. The research presented in this report develops a methodology to evaluate the safety impact of different access road spacing standards. The results clearly demonstrate the shortcomings of the AASHTO standards and the benefits of enhancing them. The models developed as part of this research were used to compute the crash rate associated with alternative section spacing. The study demonstrates that the models satisfied the statistical requirements and provide reasonable crash estimates. The results demonstrate an eight-fold decrease in the crash rate when the access road spacing increases from 0 to 300 m. An increase in the minimum spacing from 90 m (300 ft) to 180 m (600 ft) results in a 50 percent reduction in the crash rate. The models were used to develop lookup tables that quantify the impact of access road spacing on the expected number of crashes per unit distance. The tables demonstrate a decrease in the crash rate as the access road spacing increases. An attempt was made to quantify the safety cost of alternative access road spacing using a weighted average crash cost. The weighted average crash cost was computed considering that 0.6, 34.8, and 64.6 percent of the crashes were fatal, injury, and property damage crashes, respectively. These proportions were generated from the field observed data. The cost of each of these crashes was provided by VDOT as $3,760,000, $48,200, and $6,500 for fatal, injury, and property damage crashes, respectively. This provided an average weighted crash cost of $43,533. This average cost was multiplied by the number of crashes per mile to compute the cost associated with different access spacing scenarios. These costs can assist policy makers in quantifying the trade-offs of different access management regulations.
Access Management On Crossroads In The Vicinity Of Interchanges
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Author : Marc A. Butorac
language : en
Publisher: Transportation Research Board
Release Date : 2004
Access Management On Crossroads In The Vicinity Of Interchanges written by Marc A. Butorac and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Roads categories.
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 332: Access Management on Crossroads in the Vicinity of Interchanges examines current practices relating to access location and design on crossroads in the vicinity of interchanges. It identifies standards and strategies used on new interchanges and on the retrofit of existing interchanges.
A Guide For The Application Of Frontage Roads On The National System Of Interstate And Defense Highways
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Author : American Association of State Highway Officials. Committee on Planning and Design Policies
language : en
Publisher:
Release Date : 1957
A Guide For The Application Of Frontage Roads On The National System Of Interstate And Defense Highways written by American Association of State Highway Officials. Committee on Planning and Design Policies and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Express highways categories.
Safety Effectiveness Of Highway Design Features
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Author : Julie Anna Fee
language : en
Publisher:
Release Date : 1992
Safety Effectiveness Of Highway Design Features written by Julie Anna Fee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Roads categories.
Safety Effectiveness Of Highway Design Features Access Control
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Author :
language : en
Publisher:
Release Date : 1992
Safety Effectiveness Of Highway Design Features Access Control written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Bicycle trails categories.
Guidelines For Medial And Marginal Access Control On Major Roadways
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Author : Vergil G. Stover
language : en
Publisher: Highway Research Board
Release Date : 1970
Guidelines For Medial And Marginal Access Control On Major Roadways written by Vergil G. Stover and has been published by Highway Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Technology & Engineering categories.
The full range medial and marginal control, in cases of both full and partial control of access was studied to enable the highway administrator to determine the appropriate degree of access control, and to provide him with the physical means of accomplishing such control. Access control is of principal importance in insuring that an arterial, once constructed and opened to traffic, will continue to have a high traffic movement capability in future years. The street and highway networks of local areas, urban regions, states, and the nation should adequately provide for the conflicting functions of land access and longer trips.
Access Management Theories And Practices
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Author : Zhongyin Guo
language : en
Publisher: ASCE Press
Release Date : 2016-09
Access Management Theories And Practices written by Zhongyin Guo and has been published by ASCE Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09 with Electronic book categories.
This collection contains 30 peer-reviewed papers on highway and roadway access management presented at the Second International Conference on Access Management, held in Shanghai, China, September 25-27, 2014.
A Policy On Design Standards Interstate System
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Author :
language : en
Publisher: Aashto
Release Date : 2005
A Policy On Design Standards Interstate System written by and has been published by Aashto this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Express highways categories.
Highway Noise A Design Guide For Highway Engineers
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Author : Bolt, Beranek, and Newman
language : en
Publisher:
Release Date : 1971
Highway Noise A Design Guide For Highway Engineers written by Bolt, Beranek, and Newman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Roads categories.
Various methods of assessing noise, loudness, and noise annoyance are reviewed and explained; sources, types, and intensities of traffic noise are noted; typical means of abatement and attenuation are described; design criteria for various land uses ranging from low-density to industrial are suggested and compared with the results of previous BBN and British systems for predicting annoyance and complaint; and a design guide for predicting traffic noise, capable of being programmed for batch and on-line computer applications, is presented in form suitable for use as a working tool. A flow diagram describes the interrelationships of elements in the traffic noise prediction methodology, and each element is discussed in detail in the text. The text is presented of a tape recording that takes the listener through a series of traffic situations, with such variables as traffic distance, flow velocity, distance, outdoors and indoors, and presence or absence of absorbers and attenuators.
A Policy On Design Standards Interstate System
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Author : American Association of State Highway and Transportation Officials. Task Force on Geometric Design
language : en
Publisher:
Release Date : 1991
A Policy On Design Standards Interstate System written by American Association of State Highway and Transportation Officials. Task Force on Geometric Design and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Express highways categories.