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Author: David A. Price Publisher: ISBN: Category : Interstate 76 (Colo. and Neb.) Languages : en Pages : 62
Book Description
Portions of the driving lane on I-76 located in the Colorado Department of Transportation's (CDOT's) Region 4 are seriously distressed. To help prolong the life of the Portland Cement Concrete Pavement Region 4 has placed signs advising truckers to use the passing lane between Roggen and the Nebraska state line [approximately 140 miles (225 km)]. A test section well within the signed test area advising the truckers to use the passing lane and a control section just prior to the signed area were established and evaluated over a four year period. Roughness data taken with an Ames Profilograph, slab faulting measured with a Georgia fault meter, and overall physical pavement distress were noted and used as a comparison between driving lane and passing lane within the two sections.
Author: David A. Price Publisher: ISBN: Category : Interstate 76 (Colo. and Neb.) Languages : en Pages : 62
Book Description
Portions of the driving lane on I-76 located in the Colorado Department of Transportation's (CDOT's) Region 4 are seriously distressed. To help prolong the life of the Portland Cement Concrete Pavement Region 4 has placed signs advising truckers to use the passing lane between Roggen and the Nebraska state line [approximately 140 miles (225 km)]. A test section well within the signed test area advising the truckers to use the passing lane and a control section just prior to the signed area were established and evaluated over a four year period. Roughness data taken with an Ames Profilograph, slab faulting measured with a Georgia fault meter, and overall physical pavement distress were noted and used as a comparison between driving lane and passing lane within the two sections.
Author: National Academies of Sciences, Engineering, and Medicine Publisher: National Academies Press ISBN: 0309392527 Category : Transportation Languages : en Pages : 273
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: Publisher: ISBN: Category : Highway engineering Languages : en Pages : 264
Book Description
The purpose of this project was to research long-range (parametric) cost estimation at the Colorado Department of Transportation (CDOT), utilizing AASHTO's Trns.port Cost Estimation and Decision Support software. Info Tech, Inc., analysis reviewed CDOT's current long-range estimation practices and identified revisions which would be needed to satisfactorily meet CDOT's future cost estimating requirements, i.e., in order to develop consistent and reliable cost estimates when little is known about a project. Both item and contract classifications utilized by CDOT in BAMS/DSS were revised to reflect more logical functional groupings. The new contract work type and item classification were used directly to develop an Interim Solution for Long-Range Cost Estimation that uses historical bid-based default prices. Info Tech analysts also researched Internet sources to identify the availability of major item cost data at the regional and national level, including data for multimodal project types.
Author: David A. Price
Author: David A. Price
Author: National Academies of Sciences, Engineering, and Medicine
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Author: United States. Energy Research and Development Administration
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Author: United States. Defense Logistics Studies Information Exchange
Author: Cornell Aeronautical Laboratory
Author: United States. Environmental Protection Agency