Access Management on Crossroads in the Vicinity of Interchanges PDF Download
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Author: Marc A. Butorac
Publisher: Transportation Research Board
ISBN: 0309070090
Category : Roads
Languages : en
Pages : 92
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Book Description
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.
Author: Marc A. Butorac
Publisher: Transportation Research Board
ISBN: 0309070090
Category : Roads
Languages : en
Pages : 92
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Book Description
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.
Author: Jerome S. Gluck
Publisher: Transportation Research Board
ISBN: 0309143055
Category : Highway engineering
Languages : en
Pages : 124
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Book Description
This synthesis reports how various agencies have acted on the various components of an access management program, what have been barriers to action, and how new efforts might improve implementation of access management strategies. Primary focus areas considered are legal and legislative bases, contents of policies and programs, implementation aspects, reported effectiveness of program implementation, and profiles of contemporary practice. This synthesis reports on the state of the practice with respect to planning, highway design, development review and permitting, and other focus areas where access management is typically incorporated. The emphasis is placed on states, but counties, municipalities, and metropolitan planning organizations are also considered.
Author: David C. Rose
Publisher: Transportation Research Board
ISBN: 0309088453
Category : Technology & Engineering
Languages : en
Pages : 84
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Book Description
This guidebook is for transportation agency managers, engineers, and planners who want their agencies to use the planning process to implement a systematic and consistent approach to access management. For employees who are dealing with the consequences of poor access management at the project and operational levels, the guidance provides a resource that outlines the specific steps their agencies can take to establish a policy and planning basis for implementing access management best practices. This guidance focuses on how to use the planning process to establish the implementing mechanisms that will result in the application of access management principles.
Author: Del Huntington
Publisher: Transportation Research Board
ISBN: 030909755X
Category : Technology & Engineering
Languages : en
Pages : 90
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 351 examines issues involved in acquiring access rights along roadways other than freeways. The report documents the state of the practice with the intent to limit the amount of access to the roadway for the purpose of managing highway safety and mobility. The report documents successful practices and current policies, legal and real estate literature, and other publications that address this subject.
Author: National Cooperative Highway Research Program
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 650
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Book Description
Author: American Association of State Highway and Transportation Officials
Publisher: AASHTO
ISBN: 1560515082
Category : Technology & Engineering
Languages : en
Pages : 907
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 860
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Author:
Publisher:
ISBN:
Category : Express highways
Languages : en
Pages : 102
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Book Description
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.
Author: Jerome S. Gluck
Publisher: Transportation Research Board
ISBN: 9780309063128
Category : Technology & Engineering
Languages : en
Pages : 168
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Book Description
Author:
Publisher: DIANE Publishing
ISBN: 9781422329412
Category :
Languages : en
Pages : 56
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Book Description
