Author: Fang Zhao
Publisher:
ISBN:
Category : Cluster analysis
Languages : en
Pages : 168

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Book Description

Author: William H. Schneider
Publisher:
ISBN:
Category : Traffic monitoring
Languages : en
Pages : 204

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Book Description
"One of the most common traffic volume parameters reported by statewide traffic monitoring programs is annual average daily traffic (AADT). Departments of Transportation (DOT) and other state agencies use a series of continuous vehicle detection devices in association with smaller more mobile short-term counts. Once the short-term counts are recorded a series of adjustment factors (time of day, day of week, month of year, or seasonal) are applied to the short-term counts. The end result is an estimated AADT for a particular segment of roadway. Traditionally, as defined in section two of the Traffic Monitoring Guide (TMG), there are three methodologies, geographic/functional assignment of roads to groups, cluster analysis and the same road application factor. In each case, there are advantages and disadvantages and currently there is not a final peer reviewed nationally suggested method. The benefits associated with this research include an improved method for estimating AADT throughout Ohio"--Technical report documentation page.

Author:
Publisher:
ISBN:
Category : Transportation engineering
Languages : en
Pages : 716

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Book Description

Author:
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 842

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Book Description

Author: Ken Skorseth
Publisher:
ISBN:
Category : Gravel roads
Languages : en
Pages : 112

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Book Description
The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.

Author: National Research Council (U.S.). Transportation Research Board
Publisher:
ISBN:
Category : Traffic engineering
Languages : en
Pages : 184

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Book Description
Transportation Research Record 1804 considers travel-time estimates obtained from intelligent transportation systems and instrumented test vehicles, the cleaning of matched license plate data, design characteristics of national travel surveys, spatial behavioral data, and techniques for building multijurisdictional geographic information system platforms for transportation analysis.

Author: United States. Federal Highway Administration. Office of Highway Information Management
Publisher:
ISBN:
Category : Traffic congestion
Languages : en
Pages : 208

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Book Description

Author: David S. Kriger
Publisher: Transportation Research Board
ISBN: 0309097762
Category : Transportation
Languages : en
Pages : 113

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Book Description

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309100887
Category : Political Science
Languages : en
Pages : 325

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Book Description
All phases of road developmentâ€"from construction and use by vehicles to maintenanceâ€"affect physical and chemical soil conditions, water flow, and air and water quality, as well as plants and animals. Roads and traffic can alter wildlife habitat, cause vehicle-related mortality, impede animal migration, and disperse nonnative pest species of plants and animals. Integrating environmental considerations into all phases of transportation is an important, evolving process. The increasing awareness of environmental issues has made road development more complex and controversial. Over the past two decades, the Federal Highway Administration and state transportation agencies have increasingly recognized the importance of the effects of transportation on the natural environment. This report provides guidance on ways to reconcile the different goals of road development and environmental conservation. It identifies the ecological effects of roads that can be evaluated in the planning, design, construction, and maintenance of roads and offers several recommendations to help better understand and manage ecological impacts of paved roads.

Author: BRW Inc
Publisher:
ISBN:
Category : Automatic data collection systems
Languages : en
Pages : 146

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Book Description
This current report presents research findings and recommendations for improving several mobility performance measure data collection sources and measurement estimation techniques. Major sections of the report address criteria to report statewide congestion, required enhancements to the existing CDOT travel data collection and analysis system, short-term improvements, and long-term improvements.