Bayswater Park Restoration?The Case for Offsite Mitigation
A long term parking lot redevelopment, including a 33 acre (0.13 km2) expansion on an undeveloped parcel of the John F. Kennedy (JFK) International...
The PEC Headworks Project?A Cooperative Hydropower Development
The PEC Headworks Project is a single-unit hydroelectric facility located at the headworks of the Potholes East Canal at O'Sullivan Dam on the Potholes reservoir near Moses...
Potholes East Canal Headworks Project
The construction of 6.5 MW Potholes East Canal Headworks in Washington required near vertical excavation of about 100 ft (30 m) through the existing earthfill dam founded on columnar basalt....
Hydraulic Roughness and Sediment Yield in Wheel Ruts on Forest Roads
Clear water flow and sediment yield from simulated wheel ruts in a forest road were measured at five different sites in the Northern Rocky Mountains. These measurements provided information...
A Design for Automated Pavement Crack Sealing
An automated crack sealing system can have substantial economic benefits including reduced labor costs, improved quality, and improved safety. While automating crack sealing is technically...
Project Controls for Denver International Airport
Managing a $2 billion dollar construction program requires a unique application of tried and true control systems and provides an opportunity to innovate new methods. The Program utilizes...
Immersed Tube Tunnel, Boston, Massachusetts
A four-lane Immersed Tube Tunnel is planned for the crossing of Boston Harbor from the City of Boston to the Logan Airport area in East Boston. The immersed tube consists of 12 sections...
Anatomy of Asphalt
Two main factors will combine over the next several years to alter the composition of asphalt pavements, which make up more than 90% of the paved roads in the U.S. First, a major research...
Seismic Practices for the Air Transportation System: Evolution and Needs
The seismic performance of air transportation systems is reviewed. The evolution of seismic design criteria and practices for major air transportation system elements is discussed. The...
A Study of Liquefaction Countermeasures for Manholes Under the Pavement
The gravel drain method has proven to be an effective countermeasure for underground structures in liquefying ground. However, due to the road pavement, there is no draining passage through...
Perception and Control for Automated Pavement Crack Sealing
Pavement maintenance is a major transportation engineering activity that has seen only partial mechanization and virtually no automation. Crack sealing is a typical maintenance task in...
Highway Pavement Surfaces Reconstruction by Moire Interferometry
The necessary basis for any cost-effective highway and bridge deck pavement management program is reliable, complete and up-to-date information concerning the state of pavement surface....
Design Considerations for Automated Pavement Crack Sealing Machinery
The purpose of this paper is to discuss the numerous considerations for designing automated machinery for the sealing of cracks in pavement. Operational requirements are presented and...
Automated Analysis of Pavement Distress Data
A system model that can be used for the analysis of pavement distress data collected by various visual devices (e.g. photographic film) is presented. The models operate at two levels:...
Pavement Image Processing Using Neural Networks
This paper discusses the potential for employing neural network models in the pavement image interpretation and classification stage of an automated pavement condition evaluation system....
Measuring Highway Inventory Features Using Stereoscopic Imaging System
The new stereoscopic measurement approach is discussed in this paper. The objective of this paper is not intended to present another new videologging system. Instead, this paper is to...
Subsurface Pavement Structure Inventory Using Ground Penetrating Radar and a Bore Hole Camera
The Pavement Management System (PMS) is now a necessary pavement evaluation tool. The PMS data base has been historically fed with surface inspection data, but increasing demands for accurate...
Flexible Pavement Distress Evaluation Using Image Analysis
A unique combination of image histogram and projection histogram are employed to classify major distress types on flexible pavement. This technique has taken into account the presence...
Aircraft Traffic Mix Analysis: Damage Factors and Coefficients
Historically, traffic mix analyses have been based upon the use of the critical or most damaging aircraft. The damage effects of other aircraft are either ignored or empirically incorporated...
Pavement Design by Elastic Layer Theory
The U. S. Army Engineer Waterways Experiment Station has been developing methodology by which airport/airfield pavements can be designed based on elastic layered analysis for the Federal...
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