A series of reports have been written to document revised and updated versions of the simulation of highway-vehicle-object interactions in a single vehicle highway environment. The programs documented were developed under FHWA sponsorship to provide the highway safety community with an analytical means of evaluating the effects of highway/roadside
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A series of reports have been written to document revised and updated versions of the simulation of highway-vehicle-object interactions in a single vehicle highway environment. The programs documented were developed under FHWA sponsorship to provide the highway safety community with an analytical means of evaluating the effects of highway/roadside
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This handbook is intended to be a tool for use by the highway designer to aid in the design of noise abatement barriers. It provides a means of defining the geometric configuration of a barrier to produce a desired noise reduction, and also provides a design evaluation and selection procedure in which specific barriers are detailed, and then evalua
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This volume summarizes the findings of the entire study. It presents a method for comparing the costs of alternate construction schemes for cut-and-cover tunneling in urban areas. It considers both the cost of construction and the cost of urban disruption, enabling the planner to choose that construction most effective for his particular requiremen
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This volume contains summary cost analyses for 15 of the 176 study situations. The analysts give the unit costs of all labor, equipment, and material resources required to complete each project and are typical of the 176 cost estimates prepared for this study.
This report presents the results of a study to develop an analytical method for evaluating and optimizing cut-and-cover tunneling operations. The method is based on the results of a series of multiple estimates prepared by contractor type of basic resource estimating, rather than published unit prices. Major variables are type of structure, type of
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Contents: Theoretical studies-(Alternatives considered for a feasible baseline system, Rock characteristics of significance in tunneling, Range and resolution, Acoustic wave propagation in hard rock, Acoustic sensing system, Ground-probing radar, Electrical resistivity, Signal processing techniques applicable to subsurface investigation of rock mas
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The report concludes a study of physiographic areas within the continental United States which contain sources of potentially expansive materials. Following the definition of the physiographic provinces, generalized maps were developed which give a subjective indication of the occurrence and distribution of potentially expansive materials. Narrativ
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This Implementation Package provides a users manual for design application and performance testing of inductive loop detector systems developed by the Department of Traffic, City of Los Angeles, California. It is based on a study of many of their approximately 3,000 loop detector field installations. The purpose of the study was to determine the ca
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This manual describes in detail the process for inventorying the use of highways. Included in the inventory is the volume, distribution of type, and weight characteristics of the traffic using the highways. This information is needed during the process of planning, designing, and operation of an efficient highway program.
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