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Author: Federal Highway Administration Publisher: Independently Published ISBN: Category : Languages : en Pages : 262
Book Description
Tunnels represent a significant financial investment with challenging design, construction, and operational issues. Tunnels that are not adequately maintained usually require more costly and extensive repairs. To help safeguard tunnel users and to ensure reliable levels of service, the FHWA developed the National Tunnel Inspection Standards (NTIS), the Tunnel Operations Maintenance Inspection and Evaluation (TOMIE) Manual, and the Specifications for National Tunnel Inventory (SNTI). In accordance with the NTIS, this Manual describes methods for improving the safety and performance of roadway tunnel operation, maintenance, inspection, and evaluation programs.
Author: Federal Highway Administration Publisher: Independently Published ISBN: Category : Languages : en Pages : 262
Book Description
Tunnels represent a significant financial investment with challenging design, construction, and operational issues. Tunnels that are not adequately maintained usually require more costly and extensive repairs. To help safeguard tunnel users and to ensure reliable levels of service, the FHWA developed the National Tunnel Inspection Standards (NTIS), the Tunnel Operations Maintenance Inspection and Evaluation (TOMIE) Manual, and the Specifications for National Tunnel Inventory (SNTI). In accordance with the NTIS, this Manual describes methods for improving the safety and performance of roadway tunnel operation, maintenance, inspection, and evaluation programs.
Author: National Research Council (U.S.). Transportation Research Board Publisher: ISBN: Category : Technology & Engineering Languages : en Pages : 44
Book Description
"This report of the Transportation Research Board records the current practice of a large number of agencies that operate and maintain highway tunnels. Guidelines are presented that past experience suggests will produce generally acceptable fulfillment of motorists' needs over a wide range of conditions."--Avant-propos.
Author: Publisher: ISBN: Category : Tunnels Languages : en Pages : 219
Book Description
To help safeguard tunnel users and to ensure reliable levels of service, the FHWA developed the National Tunnel Inspection Standards (NTIS), the Tunnel Operations Maintenance Inspection and Evaluation (TOMIE) Manual, and the Specifications for National Tunnel Inventory (SNTI). In accordance with the NTIS, this Manual describes methods for improving the safety and performance of roadway tunnel operation, maintenance, inspection, and evaluation programs.
Author: Martha Averso Publisher: ISBN: 9780309698986 Category : State transportation agencies Languages : en Pages : 0
Book Description
"In the National Tunnel Inspection Standards (NTIS) Final Rule, FHWA used the same definition of critical findings for highway tunnels as for highway bridges. The Tunnel Operations, Maintenance, Inspection, and Evaluation (TOMIE) Manual, incorporated into the regulation by reference, does not provide criteria for defining critical findings in functional systems. Tunnels have unique characteristics, which may include functional systems such as ventilation, lighting, drainage, fire/life safety/security, communications and signage for traffic management, and emergency evacuation. The intent of the NTIS and TOMIE Manual is that tunnel owners will define critical findings for each tunnel based on its unique characteristics. The operation of functional systems is highly variable between different tunnels. Some may have different modes of function for emergencies such as fires in tunnels, while others do not. Some have automatic or remote controls that can alter operation modes in response to changing conditions, while others may have fixed modes of operation that can only be adjusted manually, or cannot be adjusted at all. The objective of this synthesis is to document state DOT methods and criteria for defining critical findings for tunnel functional systems. Information to be gathered includes (but is not limited to): (1) Identification of state DOTs that have tunnels with functional systems as defined by NTIS section 650.505; (2) State DOT procedures for defining critical findings in functional systems (e.g., statewide criteria, criteria for individual tunnels, inspector recommended); (3) Basis for the critical findings criteria (e.g., original design, level of complexity, functional analysis, maintenance records, level of service, potential for imminent danger, AHJ involvement); (4) Location of critical findings criteria documentation (e.g., tunnel specific documentation, generic state DOT inspection manuals); and (5) Protocol for reporting critical findings to FHWA. Information will be collected through a literature review, a survey of state DOTs, and follow-up interviews with selected agencies for the development of case examples. Information gaps and suggestions for research to address those gaps will be identified." -- publisher's website
Author: S. Ponnuswamy Publisher: CRC Press ISBN: 1315349302 Category : Technology & Engineering Languages : en Pages : 385
Book Description
Transportation Tunnels, 2nd Edition provides a comprehensive text on tunneling and tunnel engineering applicable in general to all types of tunnels, with more detailed information on highway and railway tunnels. While the First Edition of the book was confined to deal with railway and highway tunnels, the Second Edition is also extensively considering the latest trends in use of tunnels in different other fields. The book has been revised to provide coverage of water conveyance, navigation and material conveyance tunnels also and deals with these subjects in more detail. It covers all aspects of investigation, design, construction, monitoring and maintenance of tunnels. Special emphasis has been laid on the geotechnical investigations, interpretation of findings and relating the same to the design as well as the construction of tunnels. The book reflects the advancements in the knowledge of ground behaviour and rock mechanics and also in construction technology, including use of TBM in the last two decades. It covers in sufficient detail the basic requirements of tunnel profile, the geometric parameters, clearance requirements, aerodynamics, and cost economics in fixing alignments with different design parameters like curvature, gradient and operational requirements. It discusses in detail alternative forms of the cross section / profile and illustrates design methodology with examples. The different methodologies that have been used in the past using timber or steel supports by stage wise expansion of cross sections and modern methodologies used for boring full profile using new tunneling methods and Tunnel Boring Machines are also comprehensively discussed. Requirements of tunnels in respect of ventilation, lighting and drainage are adequately covered. Separate chapters have been included on ‘Instrumentation’ and ‘Tunnel Inspection and Maintenance’. The expanded text on the use and advantages of methodologies and equipment for dealing with various aspects of construction of tunnels is based on observations through site visits, discussions with, and experiences of people as recorded on large number of tunneling works which have been taken up recently for railways, highways and urban transport subway projects. The book can serve as a textbook for undergraduate and graduate students and as a reference book for practicing engineers.
Author: Chester Allen Publisher: ISBN: Category : Tunnels Languages : en Pages : 144
Book Description
The guide explains how executives can incorporate and communicate capital funding needs for tunnel improvements as part of their overall transportation system funding. Additionally, the guide delivers a process for prioritizing needs, using an overall measure of effectiveness that is calculated using a risk-based urgency score, and developing capital funding and staffing programs to accomplish tunnel preservation goals. The guide also serves as a training tool for new personnel. The contractors final report is available from the project description page.
Author: Publisher: AASHTO ISBN: 1560514574 Category : Technology & Engineering Languages : en Pages : 648
Book Description
"The increased use of underground space for transportation systems and the increasing complexity and constraints of constructing and maintaining above ground transportation infrastructure have prompted the need to develop this technical manual. This FHWA manual is intended to be a single-source technical manual providing guidelines for planning, design, construction and rehabilitation of road tunnels, and encompasses various types of road tunnels"--P. ix.
Author: Chester Allen Publisher: ISBN: 9780309374866 Category : Tunnels Languages : en Pages : 144
Book Description
The guide explains how executives can incorporate and communicate capital funding needs for tunnel improvements as part of their overall transportation system funding. Additionally, the guide delivers a process for prioritizing needs, using an overall measure of effectiveness that is calculated using a risk-based urgency score, and developing capital funding and staffing programs to accomplish tunnel preservation goals. The guide also serves as a training tool for new personnel. The contractors final report is available from the project description page.
Author: Federal Highway Administration
Author: Federal Highway Administration
Author: National Research Council (U.S.). Transportation Research Board
Author: 
Author: Martha Averso
Author: 
Author: S. Ponnuswamy
Author: Chester Allen
Author: 
Author: 
Author: Chester Allen