Modeling Critical Depth in Open Channels
This paper explores multiple critical depths. Reasons behind and characteristics of their occurrence are reviewed. A method to determine multiple critical depths is proposed for use in...
Distorted Physical Models for Mixing Studies
The frictional resistance and mixing process affected by roughness bars are investigated. Specific combinations of the size and layout of the bars for various flow conditions are suggested...
Bridge-Scour Analysis Using the
A program was developed to extract hydraulic information required for bridge-scour computations, from the Water-Surface Profile computation model (WSPRO). The program is written in compiled...
Prediction of Occurrence and Runoff Analysis of Debris Flow
A debris flow will occur on a slope when the rainfall exceeds a certain value determined by the hydraulic, geological and topographic properties of the slope. To estimate this critical...
Horizontal Gradients in Sigma Transformed Bathymetries with Steep Bottom Slopes
Simulation of free surface flow and transport in areas such as seas, estuaries and river is often based upon three-dimensional modelling systems. Common characteristics of these modelling...
A Culvert Analysis Program for Indirect Measurement of Discharge
A program based on the U.S. Geological Survey (USGS) methods for indirectly computing peak discharges through culverts allows users to employ input data formats used by the water surface...
Flow Study of In-Service Sanitary Sewers Rehabilitated with Insitupipe
In an effort to define the flow characteristics of sanitary sewer segments rehabilitated with Insituform under normal in-service conditions, Insituform of North America, Inc. (currently...
Analysis of Pavement-Pipeline Systems After Cut Restoration
The placement of utility pipes normally necessitates many cuts and fills of the existing pavements. Integrity of pipeline and compatible performance of cut restoration and original pavement...
Washington State Pavement Management System
This paper provides a brief overview of the Washington State Pavement management System....
PMS Implementation: Guidelines and Lessons Learned
Pavement management has emerged throughout the 1980s as an accepted tool to assist engineers in planning their pavement rehabilitation needs. Boosted by the support of the Federal Government...
Application of Leading Edge PMS Techniques in India
In India there is a pressing need for an efficient system to plan highway rehabilitation and maintenance. A two year project has started in March 1993 to develop a Pavement Management...
Canadian Pavement Management Systems
A large portion of the investment in Canada's road system is in pavement structures. In the 1960's a coordinated national effort toward protecting the investment, through good pavement...
Using a Geographical Information System to Facilitate Implementation of a Pavement Management System
One of the challenges facing local government is the management of its infrastructure. An important part of this process is the development of a pavement management systems to protect...
Programme Management in Highway Region
In the beginning of the 1990's FinnRA suggested decreasing resources for the Lapland highway district whereas the district felt that such a policy would have very harmful long term effects....
Long-Term Pavement Performance Program for Years 1992-1997: A Strategic Plan
The Federal Highway Administration (FHWA) began operational management of the Strategic Highway Research Program's (SHRP) Long-Term Pavement Performance (LTPP) program on July 1, 1992....
Equipment Systems for the Commercial Production of Modified Asphalt
A considerable amount of research has been centered on various asphalt modifiers and their effect on rheological properties. As the paving industry is now focusing on high performance...
Cost-Effective Pavement Repair Materials
In 1990, as part of the Strategic Highway Research Program's (SHRP) initiative in the highway operations area, a 2 1/2 -year research effort was initiated to study the cost-effectiveness...
Validation of SHRP Performance Graded Binder Specifications Using Field Simulation Testing Equipment
The Strategic Highway Research Program (SHRP) was initiated to improve the effectiveness of laboratory test methods in predicting field performance. European highway agencies are using...
How SHRP Reliably Predicts Pavement Performance
One of the important results of the SHRP Asphalt Research Program was to develop a comprehensive pavement performance model that reliably predicts rutting, fatigue cracking and thermal...
Pavement Repair Automation
Faced with aging and decaying road systems, continual downsizing of government staffs and increasing budget shortfalls, roadway maintenance needs some help. That help is on the way. It's...
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