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Articles 121 - 136 of 136

Full-Text Articles in Civil and Environmental Engineering

Applying Log-Linear Models And Gis To Study The Safety Of Pedestrians And Bicyclists : A Case Study Of Orange County School Children, Sai Srinivas Chundi Jan 2005

Applying Log-Linear Models And Gis To Study The Safety Of Pedestrians And Bicyclists : A Case Study Of Orange County School Children, Sai Srinivas Chundi

Electronic Theses and Dissertations

Abstract Pedestrian /bicycle safety of school children has been a growing menace that has been attracting attention from transportation professionals, school boards, media and the community all over the country. As such there has been a necessity to identify critical variables and assess their importance in pedestrian/bicycle crashes occurring in and around school zones. The current study is an endeavor in this direction. The literature review identified some studies that were conducted on school zone safety related to pedestrian/bicyclist crashes. Most of the studies pertained to crashes with all age groups. There have been few studies with emphasis only on …

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Development Of An Alternative Approach To Estimate Vehicle Miles Traveled Using A Classification Procedure, Srividya Vadlamani Jan 2005

Development Of An Alternative Approach To Estimate Vehicle Miles Traveled Using A Classification Procedure, Srividya Vadlamani

LSU Master's Theses

In this study a Classification and Regression Tree (CART) classification system method was developed as an alternative to the HPMS conventional method of VMT estimation. Louisiana Highway Performance Monitoring System (HPMS) data from Federal Highway Administration (FHWA) and Louisiana highway network data from Louisiana Department of Transportation (LADOTD) were used to carry out the analysis. The CART classification was derived based on link attributes that effectively distinguished the homogeneous traffic volume sections. VMT estimation on individual links as well for the different systems was calculated using the CART classification system and the values were assigned on each link. The default …

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Implications Of On-Ground Nitrogen Loading And Soil Transformations On Ground Water Quality Management, M. Almasri, Jagath J. Kaluarachchi Feb 2004

Implications Of On-Ground Nitrogen Loading And Soil Transformations On Ground Water Quality Management, M. Almasri, Jagath J. Kaluarachchi

Civil and Environmental Engineering Faculty Publications

This paper presents a modeling approach based on a geographic information system (GIS) to estimate the variability of on-ground nitrogen loading and the corresponding nitrate leaching to ground water. The methodology integrates all point and nonpoint sources of nitrogen, the national land cover database, soil nitrogen transformations, and the uncertainty of key soil and land use-related parameters to predict the nitrate mass leaching to ground water. The analysis considered 21 different land use classes with information derived from nitrogen sources such as fertilizer and dairy manure applications, dairy lagoons, septic systems, and dry and wet depositions. Simulations were performed at …

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Development Of A Methodology To Delineate Hurricane Evacuation Zones, Nandagopal Meduri Jan 2004

Development Of A Methodology To Delineate Hurricane Evacuation Zones, Nandagopal Meduri

LSU Master's Theses

The main focus of this study is to exhibit a simple and easily implemented process to identify hurricane evacuation zones. The proposed study presents a new methodology to delineate hurricane evacuation zones. The new methodology helps in easier identification of zones, thereby making the task of evacuation officials easier. Hurricane evacuation zones were identified based on the elevation of the points comprising the study area. An area layer was created based on the storm surge models run, and were overlaid with zip code boundary layer and land use data available. Elevation point file data was superimposed on the study area …

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Development Of A Strategy For Preparing An Indot Storm Water Quality Management Plan, Lynn A. Corson Jan 2004

Development Of A Strategy For Preparing An Indot Storm Water Quality Management Plan, Lynn A. Corson

JTRP Technical Reports

The purpose of the study was to conduct research and prepare documents, data tables, reports and GIS maps to be included in the INDOT SWQMP that address each of the following Minimum Control Measures (MCMs) specified in the federal and state regulation: (1) public education and outreach; (2) public participation and involvement; (3) illicit discharge detection with elimination; (4) construction site runoff control; (5) post-construction runoff control and (6) pollution prevention and good housekeeping. The MCMs are minimum measures which, when implemented by INDOT, will ensure that storm water quality meets the minimum water quality standards. The research focused on …

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A.M.I.S. And The Partitioning Of Preference, Ted H. Grossardt Jul 2003

A.M.I.S. And The Partitioning Of Preference, Ted H. Grossardt

Kentucky Transportation Center Presentations

This presentation reviews work by the researchers that combines group dialogic techniques with analytic hierarchy and GIS to bring the knowledge of large groups of people to bear on a highway routing problem. A significant question is how technical knowledge and local information can be combined, either dialogically or mathematically, to provide the most faithful and practical version of a collaborative preference surface, what we call the Analytic Minimum Impedance Surface, or AMIS. While all preferences can be summed directly for this purpose, it may be more accurate and effective to partition the preference contribution to the landscape by knowledge …

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Development Of A Database And System For Analyzing The Actual And Potential Impacts On The Environment Of Existing And Planned Indot Sites, Lynn A. Corson Jan 2003

Development Of A Database And System For Analyzing The Actual And Potential Impacts On The Environment Of Existing And Planned Indot Sites, Lynn A. Corson

JTRP Technical Reports

The objectives of this research were: 1. to identify the source, character, currency and format of environmental, ecological, geological and other data for each existing facility site and organize it in a “hard copy” and/or computerized framework to aid the prioritization and planning process for facility upgrades to protect the environment, for regulatory compliance, and for potential replacement or relocation of existing sites; 2. to identify and assess the criteria currently employed by INDOT to select locations for new and/or relocated facilities, including the ASTM Phase I and II Environmental Site Assessment criteria, and to recommend additional criteria including those …

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Development Of An Automated Airport Pavement Image Collection System, Chau Lee, C.F. Chen, Shu-Meng Huang, Chun-Jung Hsu, Shu-Wang Sheu Jun 2002

Development Of An Automated Airport Pavement Image Collection System, Chau Lee, C.F. Chen, Shu-Meng Huang, Chun-Jung Hsu, Shu-Wang Sheu

Journal of Marine Science and Technology–Taiwan

Airport pavement maintenance is an extremely important link in any airport pavement management system. How to quickly and effectively perform pavement surveys and data collection at today's very busy airports, while minimizing disruption to the airport's normal operation, is a major issue in airport pavement maintenance management research. This study uses a van to perform photographic surveys, and employs a global positioning system (GPS), geographic information system (GIS), image caption device, and the audio acquisition method to develop an automated airport pavement image collection system. This system currently is able to display a pavement image, slab name, and damage location …

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Role Of Remote Sensing In Disaster Management, Nirupama, Slobodan P. Simonovic Jun 2002

Role Of Remote Sensing In Disaster Management, Nirupama, Slobodan P. Simonovic

Water Resources Research Report

The objective of this report is to review the existing satellites monitoring Earth’s resources and natural disasters. Each satellite has different repeat pass frequency and spatial resolution (unless it belongs to the same series of satellites for the purpose of continuation of data flow with same specifications). Similarly, different satellites have different types of sensors on-board, such as, panchromatic, multispectral, infrared and thermal. All these sensors have applications in disaster mitigation, though depending on the electromagnetic characteristics of the objects on Earth and the nature of disaster itself. With a review of the satellites in orbit and their sensors the …

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Earthquake Hazard Assessment Along Designated Emergency Vehicle Priority Access Routes, Neil Lennart Anderson, Hal Baker, Genda Chen, Tom Hertell, David J. Hoffman, Ronaldo Luna, Yulman Munaf, Shamsher Prakash, Paul Michael Santi, Richard Wesley Stephenson Nov 2001

Earthquake Hazard Assessment Along Designated Emergency Vehicle Priority Access Routes, Neil Lennart Anderson, Hal Baker, Genda Chen, Tom Hertell, David J. Hoffman, Ronaldo Luna, Yulman Munaf, Shamsher Prakash, Paul Michael Santi, Richard Wesley Stephenson

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Because of the compelling need to reopen vehicular access routes to Sikeston, Cape Girardeau and St. Louis following a devastating earthquake, Missouri Department of Transportation initiated a study of those portions of US 60 and MO 100 that have been officially designated as emergency vehicle priority access routes. The primary objectives of this study were twofold. Objective 1 was to establish a current subsurface and earthquake design geographic information systems (GIS) database for areas in proximity to designated portions of US 60 and MO 100 (includes counties of Butler, Stoddard, New Madrid, Franklin and St. Louis). Objective 2 was to …

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Indiana High Accuracy Reference Network (Harn) Final Report, Boudewijn H.W. Van Gelder, David J. Vandenberg, Aaron W. Braun Mar 2000

Indiana High Accuracy Reference Network (Harn) Final Report, Boudewijn H.W. Van Gelder, David J. Vandenberg, Aaron W. Braun

Indiana Local Technical Assistance Program (LTAP) Publications

This report has three main areas of interest. First, a brief discussion on the need for the Indiana HARN and why this was an important task. Second, a summary of the details surrounding the Indiana HARN survey. Finally, the station description of the HARN point in your county is attached with a map of the general area surrounding this point. We have also included a discussion on monument preservation with tips on how keep the high accuracies associated with your point(s). Also, a section is included on how the HARN is being used in Indiana with a few success stories.

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Managing Temporal Data In A Comprehensive Modeling Environment, Norman L. Jones, E. James Nelson, Colby T. Manwaring Mar 2000

Managing Temporal Data In A Comprehensive Modeling Environment, Norman L. Jones, E. James Nelson, Colby T. Manwaring

Faculty Publications

Numerous graphical pre- and post-processors have been developed for numerical modeling. Many of these systems support numerical models that can be used for both steady state and transient simulations. Dealing with transient data can be particularly difficult in such an environment due to the differing time scales and units associated with transient field data and boundary conditions. A data model and a set of functions are presented in this paper as a simple, yet powerful strategy for managing temporal data in a comprehensive modeling environment. The strategy makes it possible to seamlessly integrate multiple types of transient data and convert …

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Utilizing Gis Technology To Improve Indot Pavement Friction Data Management And Distribution, Karen Zhu Jan 2000

Utilizing Gis Technology To Improve Indot Pavement Friction Data Management And Distribution, Karen Zhu

JTRP Technical Reports

Pavement friction condition provides an important parameter in selecting highway rehabilitation and maintenance projects. The Research Division of Indiana Department of Transportation has been conducting annual pavement friction testing on the Indiana highway network. Due to the large amount of data accumulated, an efficient system is in demand for data management. In this project, we developed a computer program that constitutes an integrated system for friction data management and distribution. In the developed system, database technology was utilized for data storage and organization; networking technology was utilized for real-time data distribution; geographic information systems (GIS) technology as well as computer …

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The Computer Aided System For Planning Efficient Routes, J. R. Wright Jan 1994

The Computer Aided System For Planning Efficient Routes, J. R. Wright

JTRP Technical Reports

The Indiana Department of Transportation has sponsored the design and implementation of a decision support system for routing highway maintenance vehicles – the Computer Aided System for Planning Efficient Routes (CASPER). Designed for solving multiobjective route design problems, CASPER has been used by agency personnel to design routes for winter maintenance vehicles with significant results: cost savings of more than $9-million to the State of Indiana through more efficient use of materials, equipment, and personnel, while at the same time significant improvement in overall level of network and public service. CASPER integrates 1: an extensive spatial network database (GIS/CAD), 2) …

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Ground-Water Policy-Making Support: Usem Optimization Modelling Plus Gis And Graphics, Richard C. Peralta, Christopher M. U. Neale, Ali Gharbi, Mazibur Khan, Oscar Daza, Douglas Ramsey, Kurt Vest Aug 1992

Ground-Water Policy-Making Support: Usem Optimization Modelling Plus Gis And Graphics, Richard C. Peralta, Christopher M. U. Neale, Ali Gharbi, Mazibur Khan, Oscar Daza, Douglas Ramsey, Kurt Vest

Civil and Environmental Engineering Faculty Publications

A support tool for ground-water management decision making involves integration of a multiobjective optimization model, GIS and graphics software. Two results are improved consideration of spatial data within the optimization model and improved conversion of optimal strategies to real-world application. Another result is improved visualization of the trade-offs involved between conflicting management goals.

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The Use Of Advanced Technologies In Indiana Department Of Transportation, Thomas R. Kruse, Kumares C. Sinha, Ted M. Andrews, Jon D. Fricker, James Samuel Bethel, Michael J. Cassidy, Jorge A. Vanegas Jan 1992

The Use Of Advanced Technologies In Indiana Department Of Transportation, Thomas R. Kruse, Kumares C. Sinha, Ted M. Andrews, Jon D. Fricker, James Samuel Bethel, Michael J. Cassidy, Jorge A. Vanegas

JTRP Technical Reports

The report presents the findings of a study that investigated the potential uses of new technologies in INDOT. A survey of state transport agencies were conducted and the major groups of technologies identified are: CADD, GIS, Advanced Survey Techniques, Knowledge-Based Expert Systems, Planning and Programming Mdels, and a workshop with the INDOT executive staff were conducted to determine the priority areas for advanced technology applications. Suggestions were then made for the development of a new technology program within INDOT.

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