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Author: P. Fancher
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 76
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Book Description
This synthesis will be of interest to engineers and administrators responsible for the design, construction, and maintenance of highways and bridges, as well as to engineering design consultants. It will also provide useful information on the influence of the design and operating characteristics of heavy trucks on highway design, maintenance, and operational performance.
Author: P. Fancher
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 76
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Book Description
This synthesis will be of interest to engineers and administrators responsible for the design, construction, and maintenance of highways and bridges, as well as to engineering design consultants. It will also provide useful information on the influence of the design and operating characteristics of heavy trucks on highway design, maintenance, and operational performance.
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309392527
Category : Transportation
Languages : en
Pages : 273
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Book Description
There are approximately 4,000 fatalities in crashes involving trucks and buses in the United States each year. Though estimates are wide-ranging, possibly 10 to 20 percent of these crashes might have involved fatigued drivers. The stresses associated with their particular jobs (irregular schedules, etc.) and the lifestyle that many truck and bus drivers lead, puts them at substantial risk for insufficient sleep and for developing short- and long-term health problems. Commercial Motor Vehicle Driver Fatigue, Long-Term Health and Highway Safety assesses the state of knowledge about the relationship of such factors as hours of driving, hours on duty, and periods of rest to the fatigue experienced by truck and bus drivers while driving and the implications for the safe operation of their vehicles. This report evaluates the relationship of these factors to drivers' health over the longer term, and identifies improvements in data and research methods that can lead to better understanding in both areas.
Author: Douglas W. Harwood
Publisher: Transportation Research Board
ISBN: 0309087791
Category : Express highways
Languages : en
Pages : 194
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Book Description
Author: United States. Bureau of the Census
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 774
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309159474
Category : Science
Languages : en
Pages : 251
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Book Description
Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles, such as tractor-trailers, transit buses, and work trucks. The book also recommends approaches that federal agencies could use to regulate these vehicles' fuel consumption. Currently there are no fuel consumption standards for such vehicles, which account for about 26 percent of the transportation fuel used in the U.S. The miles-per-gallon measure used to regulate the fuel economy of passenger cars. is not appropriate for medium- and heavy-duty vehicles, which are designed above all to carry loads efficiently. Instead, any regulation of medium- and heavy-duty vehicles should use a metric that reflects the efficiency with which a vehicle moves goods or passengers, such as gallons per ton-mile, a unit that reflects the amount of fuel a vehicle would use to carry a ton of goods one mile. This is called load-specific fuel consumption (LSFC). The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. For example, using advanced diesel engines in tractor-trailers could lower their fuel consumption by up to 20 percent by 2020, and improved aerodynamics could yield an 11 percent reduction. Hybrid powertrains could lower the fuel consumption of vehicles that stop frequently, such as garbage trucks and transit buses, by as much 35 percent in the same time frame.
Author: United States. Bureau of the Census
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 582
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Book Description
Author:
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 610
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Book Description
Author: Chicago (Ill.). City Council. Committee on Local Transportation
Publisher:
ISBN:
Category : Street-railroads
Languages : en
Pages : 432
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Book Description
Author: Bion Joseph Arnold
Publisher:
ISBN:
Category : Street-railroads
Languages : en
Pages : 320
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Book Description
Author: United States. Congress
Publisher:
ISBN:
Category :
Languages : en
Pages : 1866
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Book Description
