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Airport ground access

Airport ground access
Author: M. Gorstein
Publisher:
Total Pages: 620
Release: 1978
Genre:
ISBN:

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Ground Access to Major Airports by Public Transportation

Ground Access to Major Airports by Public Transportation
Author: Matthew A. Coogan
Publisher: Transportation Research Board
Total Pages: 215
Release: 2008
Genre: Access to airports
ISBN: 0309099412

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TRBs Airport Cooperative Research Program (ACRP) Report 4: Ground Access to Major Airports by Public Transportation examines key elements associated with the creation of a six-step market-based strategy for improving the quality of public mode services at U.S. airports. The report also addresses the context for public transportation to major airports, explores the attributes of successful airport ground access systems, presents an airport by airport summary of air traveler ground access mode-share by public transportation services, and more.


Development of Site-specific ESAL

Development of Site-specific ESAL
Author: Sirous H. Alavi
Publisher:
Total Pages: 204
Release: 2002
Genre: Pavements
ISBN:

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This study was approved by the CDOT's Research Implementation Committee as a high priority research with the goal of improving the accuracy of the existing and forecasted traffic loads of CDOT's highway network. The overall scope of this project involved examination of those resources directly related to the current statewide ESAL classification system and the generation of this final report discussing the research and analysis conducted and recommendation of procedures required for CDOT to develop and implement a more site-specific ESAL classification system. In this study Nichols Consulting Engineers (NCE) analyzed all available CDOT permanent and portable weigh-in-motion (WIM) data.


Sampling Location Impact on Measured Asphalt Content of Hot Mix Asphalt

Sampling Location Impact on Measured Asphalt Content of Hot Mix Asphalt
Author: Mohammad Abu-Hassan
Publisher:
Total Pages: 80
Release: 2002
Genre: Pavements, Asphalt
ISBN:

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In May 2000, the Colorado Department of Transportation (CDOT) requested a forensic study of a project located on I-24 north of Denver. The request was made because, within a year of the 1997 overlay, longitudinal cracking appeared in the surface. Transverse cracks were attributed to reflective cracking. However, the longitudinal cracks appeared to be surface initiated. In October 2000, a forensic team reviewed the project and established a sampling and testing plan to take cores from the roadway. Based on data analysis of the cores, the higher than expected in-place air voids, the low effective asphalt, and segregation within the mat, all contributed to the early cracking.


Determining the Degree of Aggregate Degradation After Using the NCAT Asphalt Content Tester

Determining the Degree of Aggregate Degradation After Using the NCAT Asphalt Content Tester
Author: Randolph Reyes
Publisher:
Total Pages: 142
Release: 1997
Genre: Aggregates (Building materials)
ISBN:

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The purpose of the research conducted was to determine if aggregate degradation takes place and to measure the possible degree of degradation after bituminous mixtures are heated inside the NCAT Asphalt Content Tester. A study was conducted which compared the original aggregate blend (control specimens) to the residual aggregate blend (experimental specimens) obtained after several bituminous mixtures were heated inside the NCAT Asphalt Content Tester. The control specimens and the experimental specimens used to produce the bituminous mixtures were the result of an aggregate sample which was split three times. Two methods of analysis were used to review the gradation results.


Noise and Skid Measurements on US285 in the Turkey Creek Canyon Area

Noise and Skid Measurements on US285 in the Turkey Creek Canyon Area
Author: Robert LaForce
Publisher:
Total Pages: 52
Release: 2001
Genre: Pavements
ISBN:

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This report documents the noise measurements taken using a single vehicle on four different pavement surface textures. The pavements were located on US285 southwest of Denver, Colorado. Noise measurements were taken inside the vehicle, 25 ft from the center of the closest driving lane, and near the right rear tire. Skid testing was performed at 40 mph in conformance with the American Society for Testing and Materials procedure E 274 for a ribbed tire. The surface types included longitudinal tined concrete, transverse tined concrete, ground concrete, and an asphalt surface (3/8 in. nominal Stone Mastic Asphalt).


Airport Ground Access

Airport Ground Access
Author: M. Gorstein
Publisher:
Total Pages: 628
Release: 1978
Genre: Access to airports
ISBN:

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I-76 Truck Study

I-76 Truck Study
Author: David A. Price
Publisher:
Total Pages: 62
Release: 1998
Genre: Interstate 76 (Colo. and Neb.)
ISBN:

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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.