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Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.3/5 (91 download)
Download or read book Using GIS in the Analysis of Truck Crashes. Summary Report. Highway Safety Information System written by and published by . This book was released on 1999 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (436 download)
Download or read book Using GIS in the Analysis of Truck Crashes. Summary Report. Highway Safety Information System written by and published by . This book was released on 1999 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard C. Smith
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.3/5 (91 download)
Download or read book Implementation of GIS-based Highway Safety Analyses written by Richard C. Smith and published by . This book was released on 2001 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In recent years, efforts have been made to expand the analytical features of the Highway Safety Information System (HSIS) by integrating Geographic Information Systems (GIS) capabilities. The original version of the GIS Safety Analysis Tools was released in 1999 and provided practitioners with programs to perform spot/intersection analysis, cluster analysis, strip analysis, sliding-scale evaluations, and corridor analysis. The updated version of this product has just been released and includes additional pedestrian and bicycle safety tools to select safe routes to schools, assess the bicycle compatibility of roadways, and define high pedestrian crash zones.(1-2) One of the continuing goals of distributing the GIS Safety Analysis Tools is to encourage the safety engineers and others within State and municipal departments of transportation and metropolitan planning organizations to explore the capabilities of the GIS-based highway safety analysis tools and to adapt those ideas and applications to fit their particular needs. However, due to the variety of implementations of GIS that exist within these organizations, developing capabilities in highway safety analysis requires an understanding of the requirements of GIS, linear referencing systems (LRS), and GIS-based highway safety analysis applications. The primary goal of this current effort was to discuss GIS/Safety integration in terms that can be understood by both safety engineers and GIS specialists, and to describe issues and solutions involved in the integration of GIS into safety-related analysis efforts. This task report is intended to serve as an educational document for both safety engineers and GIS professionals and to initiate a common dialogue. Hopefully, this report will begin to bridge the gap between the desire to implement GIS highway safety analysis within an organization and the development of a Geographic Information System--Transportation (GIS-T) infrastructure to support that effort"--Technical report documentation page
Download or read book GIS-based Crash Referencing and Analysis System written by and published by . This book was released on 1999 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A geographical information system (GIS) can be simply defined as a collection of hardware and software that is used to edit, analyze, and display geographical information stored in a spatial data base. In recent years, many transportation departments and other related organizations, such as the Federal Highway Administration (FHWA), have examined the feasibility of using GIS for transportation planning, systems management, and engineering applications. In some States and municipalities, GIS is being used to plan transportation routes, manage pavement and bridge maintenance, and perform a variety of other traditional transportation-related functions. One area where GIS has yet to be extensively applied is in the analysis of crash data. Computerized crash analysis systems in which crash data, roadway inventory data, and traffic operations data can be merged are used in many States and municipalities to identify problem locations and assess the effectiveness of implemented countermeasures. By integrating this traditional system with a GIS, which offers spatial referencing capabilities and graphical displays, a more effective crash analysis program can be realized.
Author : John S. Miller
Publisher : DIANE Publishing
ISBN 13 : 1437904130
Total Pages : 43 pages
Book Rating : 4.4/5 (379 download)
Download or read book What Value May Geographic Information Systems Add to the Art of Identifying Crash Countermeasures? written by John S. Miller and published by DIANE Publishing. This book was released on 2008-09 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geographic Info. Systems (GIS) can be employed to relate, organize, and analyze roadway and crash data, thereby facilitating crash countermeasure identification and evaluation. GIS cannot, however, replace the role of the local analyst as a problem solver who needs to interpret results and recommend engineering, enforcement, or educ. improvements. Using the PC-based Micro Traffic Records System (MTRS), a software packaged employed in Virginia that records crashes at either a specific intersection or between 2 cross streets, it was possible to place 82% of the MTRS crash locations within a GIS. Without crashes that were demarcated at ¿private property¿ locations, the placement rate climbs to 94% for intersection locations. Illus.
Author : GeoDecisions
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (555 download)
Download or read book Using Spatial Tools to Analyze Crash and Roadway Data written by GeoDecisions and published by . This book was released on 2008 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: PennDOT engaged Gannett Fleming to conduct research into best practices in the use of geospatial analysis tools for highway safety analyses. The goals of the effort were to define a methodology for PennDOT to follow in identifying the best candidate locations for highway safety improvements, and to develop a Proof of Concept to test the proposed methodology. After conducting interviews and workshops involving more than 35 of PennDOT's stakeholders in highway safety processes, Gannett Fleming interviewed highway safety managers in five other state and federal highway agencies to determine what innovative tools and practices are currently being used. Gannett Fleming's research also included a review of literature related to the study from more than 80 sources. Based on Gannett Fleming's research and analysis, PennDOT selected the "Highway Safety Data Relationships Knowledge Base" for further research. The knowledge base is an information repository based on concepts in data mining and expert systems. It uses advanced statistical analysis methods and expert business knowledge rules to discover data patterns based on correlation and other forms of relationships in the data. The knowledge base can be applied to diagnosing specific combinations of data attributes and features that may indicate the causative factors among homogeneous populations of crashes. Most highway safety data analyses involve studying correlations among multiple data sets. The knowledge base is an innovative and compreh3nsive tool for such an application. It provides a framework for identifying and managing relationships among many combinations of data sets that are useful in highway safety analyses. Gannett Fleming proceeded to develop a prototype as a proof of concept. Gannett Fleming demonstrated the prototype using actual PennDOT crash data. Three analysis scenarios were demonstrated" evaluating safety programming alternatives for alcohol involved crashes, diagnosing data patterns of crashes at a selected highway location, identifying potential sites for system-wide deployment of a selected countermeasure
Author : Aline Aylo
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (727 download)
Download or read book Developing a GIS Safety Analysis System written by Aline Aylo and published by . This book was released on 2010 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: GIS has become one of the most used programs for various project and research areas. It has been widely used in a variety of applications for planning, presenting, and analyzing data and results. Its application in transportation safety however, has been limited. ArcGIS provides the option of creating new tools by programming with different languages such as Visual Basic. Most of the available GIS-based traffic safety tools developed so far perform simple traffic crash analyses by querying, analyzing crash data and ranking of high crash locations by using crash data only. The objectives of this study are three-fold: (1) to review and identify the most important features and methods in safety analysis; (2) to develop a safety analysis application using ArcGIS and Visual Basic; (3) to use the application in a case study. The safety application developed is able to query traffic crashes by accident characteristics which are always reported and included in any traffic accident database such as crash severity, road condition, collision type, light condition, etc. The application also performs analysis both on a micro level and on a macro level. Users have the choice of studying an intersection or a roadway segment as well as a group of intersections or roadway segments that share common characteristics or traits. Eight different safety analysis methods were programmed, which ranged from simple methods such as the crash frequency to the more advanced methods such as the empirical Bayes (EB). A before-after study tool is added and it is able to perform a naïve before-after study and an empirical Bayes study. Finally an output tool is added to the application so the results can be exported to other formats or maps. The application is tested with a case study using Montgomery County as a study area.
Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
Publisher :
ISBN 13 :
Total Pages : 2014 pages
Book Rating : 4.F/5 ( download)
Download or read book Department of Transportation and Related Agencies Appropriations for 1999 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations and published by . This book was released on 1998 with total page 2014 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
Publisher :
ISBN 13 :
Total Pages : 1800 pages
Book Rating : 4.:/5 (6 download)
Download or read book Department of Transportation and Related Agencies Appropriations for 2000 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations and published by . This book was released on 1999 with total page 1800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zacharia Chepkania
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783838361772
Total Pages : 120 pages
Book Rating : 4.3/5 (617 download)
Download or read book Gis and Road Crash written by Zacharia Chepkania and published by LAP Lambert Academic Publishing. This book was released on 2010-05 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geographic Information System-based integrated road crash data system can be used for mitigating road safety problems. This manuscript centres on on two areas. Firstly, the review of the database systems has been done, which forms the basic platform for managing all road crash attribute data. The data modelling concepts such as the types of data models, the use of the entity relationship diagrams and database models have been reviewed. The Database Management System (DBMS) is a powerful tool for creating and managing large amounts of data efficiently and allowing it to persist over long periods of time, safely. The second aspect deals with the Geographic Information Systems (GISs) which have proven to be powerful analysis tools in almost all fields today. This is for the simple reason that every activity has a geographic component and at one time or another one has to refer to a location on the earth s surface. The capabilities of GIS lie in its functionalities, which include data capture, data storage, data management, analysis and display. Most importantly, GIS can be integrated with other information systems.
Author : Norman R. Stoner
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.3/5 (91 download)
Download or read book Engineering Analysis of Fatal Accident Data from FARS: Executive summary written by Norman R. Stoner and published by . This book was released on 1984 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward Fekpe
Publisher : Transportation Research Board
ISBN 13 : 0309087813
Total Pages : 108 pages
Book Rating : 4.3/5 (9 download)
Download or read book Quality and Accuracy of Positional Data in Transportation written by Edward Fekpe and published by Transportation Research Board. This book was released on 2003 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global response to COVID-19 has demonstrated the importance of vigilance and preparedness for infectious diseases, particularly influenza. There is a need for more effective influenza vaccines and modern manufacturing technologies that are adaptable and scalable to meet demand during a pandemic. The rapid development of COVID-19 vaccines has demonstrated what is possible with extensive data sharing, researchers who have the necessary resources and novel technologies to conduct and apply their research, rolling review by regulators, and public-private partnerships. As demonstrated throughout the response to COVID-19, the process of research and development of novel vaccines can be significantly optimized when stakeholders are provided with the resources and technologies needed to support their response. Vaccine Research and Development to Advance Pandemic and Seasonal Influenza Preparedness and Response focuses on how to leverage the knowledge gained from the COVID-19 pandemic to optimize vaccine research and development (R&D) to support the prevention and control of seasonal and pandemic influenza. The committee's findings address four dimensions of vaccine R&D: (1) basic and translational science, (2) clinical science, (3) manufacturing science, and (4) regulatory science.
Author :
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.3/5 ( download)
Download or read book State Traffic Safety Information written by and published by . This book was released on 1997 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ali Lotfi Darwiche
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (525 download)
Download or read book A GIS Safety Study and a County-level Spatial Analysis of Crashes in the State of Florida written by Ali Lotfi Darwiche and published by . This book was released on 2009 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research conducted in this thesis consists of a Geographic Information Systems (GIS) based safety study and a spatial analysis of vehicle crashes in the State of Florida. The GIS safety study is comprised of a County and Roadway Level GIS analysis of multilane corridors. The spatial analysis investigated the use of county-level vehicle crash models, taking spatial effects into account. The GIS safety study examines the locations of high trends of severe crashes (includes incapacitating and fatal crashes) on multilane corridors in the State of Florida at two levels, county level and roadway level. The GIS tool, which is used frequently in traffic safety research, was utilized to visually display those locations. At the county level, several maps of crash trends were generated. It was found that counties with high population and large metropolitan areas tend to have more crash occurrences. It was also found that the most severe crashes occurred in counties with more urban than rural roads. The neighboring counties of Pasco, Pinellas and Hillsborough had high severe crash rate per mile. At the roadway level, seven counties were chosen for the analysis based on their high severe crash trends, metropolitan size and geographical location. Several GIS maps displaying the safety level of multilane corridors in the seven counties were generated. The GIS maps were based on a ranking methodology that was developed in research that evaluated the safety condition of road segments and signalized intersections separately. The GIS maps were supported by Excel tables which provided details on the most hazardous locations on the roadways. The results of the roadway level analysis found that the worst corridors were located in Pasco, Pinellas and Hillsborough Counties. Also, a sliding window approach was developed and performed on the ten most hazardous corridors of the seven counties. The results were graphs locating the most dangerous 0.5 miles on a corridor. For the spatial analysis of crashes, the exploratory Moran's I statistic test revealed that crash related spatial clustering existed at the county level. For crash modeling, a full Bayesian (FB) hierarchical model is proposed to account for the possible spatial correlation among crash occurrence of adjacent counties. The spatial correlation is realized by specifying a Conditional Auto-regressive prior to the residual term of the link function in standard Poisson regression. Two FB models were developed, one for total crashes and one for severe crashes. The variables used include traffic related factors and socio-economic factors. Counties with higher road congestion levels, higher densities of arterials and intersections, higher percentage of population in the 15-24 age group and higher income levels have increased crash risk. Road congestion and higher education levels, however, were negatively correlated with the risk of severe crashes. The analysis revealed that crash related spatial correlation existed among the counties. The FB models were found to fit the data better than traditional methods such as Negative Binomial and that is primarily due to the existence of spatial correlation. Overall, this study provides the Transportation Agencies with specific information on where improvements must be implemented to have better safety conditions on the roads of Florida. The study also proves that neighboring counties are more likely to have similar crash trends than the more distant ones.
Author : Philip J. Daum
Publisher : Transportation Research Board
ISBN 13 : 0309258820
Total Pages : 132 pages
Book Rating : 4.3/5 (92 download)
Download or read book Feasibility Study for Highway Hazardous Materials Bulk Package Accident Performance Data Collection written by Philip J. Daum and published by Transportation Research Board. This book was released on 2013 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's Hazardous Materials Cooperative Research Program (HMCRP) Report 10: Feasibility Study for Highway Hazardous Materials Bulk Package Accident Performance Data Collection explores methods to collect and analyze performance data for U.S. Department of Transportation (DOT)-specified hazardous materials bulk packages such as portable tanks and cargo tank motor vehicles. The report also identifies and evaluates institutional challenges to data collection, and makes suggestions for overcoming these challenges. In addition, the report offers a methodical approach for developing and implementing a reporting database system to collect and characterize information about damage to U.S. DOT-specified hazardous materials bulk packages involved in accidents, regardless of whether the damage resulted in a leak of contents. Appendices A through G have been published on a CD-ROM, which is bound into this report. Appendix titles are the following: Appendix A: Survey Development and Questions; Appendix B: Conditional Probability of Release as a Function of Data Refinement; Appendix C: Differences Between Highway and Rail Hazardous Material Transportation Affecting Development of a Bulk Package Accident Performance Database; Appendix D: Option Evaluation Tool; Appendix E: Pilot Study Data Collection Tool; Appendix F: Links to Newspaper Articles; Appendix G: An Example of Bulk Package Performance Analysis Using Multivariate Regression. The CD-ROM is also available for download from TRB's website as an ISO image. Links to the ISO image and instructions for burning a CD-ROM from an ISO image are provided below."--Pub. Info.
Author : Aura Reggiani
Publisher : Springer Science & Business Media
ISBN 13 : 3540285504
Total Pages : 361 pages
Book Rating : 4.5/5 (42 download)
Download or read book Methods and Models in Transport and Telecommunications written by Aura Reggiani and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: One aspect of the new economy is a transition to a networked society, and the emergence of a highly interconnected, interdependent and complex system of networks to move people, goods and information. An example of this is the in creasing reliance of networked systems (e. g. , air transportation networks, electric power grid, maritime transport, etc. ) on telecommunications and information in frastructure. Many of the networks that evolved today have an added complexity in that they have both a spatial structure – i. e. , they are located in physical space but also an a spatial dimension brought on largely by their dependence on infor mation technology. They are also often just one component of a larger system of geographically integrated and overlapping networks operating at different spatial levels. An understanding of these complexities is imperative for the design of plans and policies that can be used to optimize the efficiency, performance and safety of transportation, telecommunications and other networked systems. In one sense, technological advances along with economic forces that encourage the clustering of activities in space to reduce transaction costs have led to more efficient network structures. At the same time the very properties that make these networks more ef ficient have also put them at a greater risk for becoming disconnected or signifi cantly disruptedwh en super connected nodes are removed either intentionally or through a targeted attack.
Author : Ronald C. Pfefer
Publisher : Transportation Research Board
ISBN 13 : 9780309066082
Total Pages : 184 pages
Book Rating : 4.0/5 (66 download)
Download or read book Improved Safety Information to Support Highway Design written by Ronald C. Pfefer and published by Transportation Research Board. This book was released on 1999 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
