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Implementation Of Gis Based Highway Safety Analyses
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Book Synopsis Implementation of GIS-based Highway Safety Analyses by : Richard C. Smith
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
Book Synopsis Developing a GIS Safety Analysis System by : Aline Aylo
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.
Book Synopsis GIS Based Highway Safety Analysis for South Dakota Rural Highways by : Adam Wellner
Download or read book GIS Based Highway Safety Analysis for South Dakota Rural Highways written by Adam Wellner and published by . This book was released on 2011 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using GIS in the Analysis of Truck Crashes. Summary Report. Highway Safety Information System by :
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:
Book Synopsis State Traffic Safety Information by :
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:
Book Synopsis Using Spatial Tools to Analyze Crash and Roadway Data by : GeoDecisions
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
Book Synopsis Incorporating Safety Into Long-range Transportation Planning by : Simon Washington
Download or read book Incorporating Safety Into Long-range Transportation Planning written by Simon Washington and published by Transportation Research Board. This book was released on 2006 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 546 examines where and how safety can be effectively addressed and integrated into long-range transportation planning at the state and metropolitan levels. The report includes guidance for practitioners in identifying and evaluating alternative ways to incorporate and integrate safety considerations in long-range statewide and metropolitan transportation planning and decision-making processes"--Publisher's description.
Book Synopsis Highway Safety Analytics and Modeling by : Dominique Lord
Download or read book Highway Safety Analytics and Modeling written by Dominique Lord and published by Elsevier. This book was released on 2021-03-11 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highway Safety Analytics and Modeling comprehensively covers the key elements needed to make effective transportation engineering and policy decisions based on highway safety data analysis in a single. reference. The book includes all aspects of the decision-making process, from collecting and assembling data to developing models and evaluating analysis results. It discusses the challenges of working with crash and naturalistic data, identifies problems and proposes well-researched methods to solve them. Finally, the book examines the nuances associated with safety data analysis and shows how to best use the information to develop countermeasures, policies, and programs to reduce the frequency and severity of traffic crashes. Complements the Highway Safety Manual by the American Association of State Highway and Transportation Officials Provides examples and case studies for most models and methods Includes learning aids such as online data, examples and solutions to problems
Book Synopsis A GIS Safety Study and a County-level Spatial Analysis of Crashes in the State of Florida by : Ali Lotfi Darwiche
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.
Book Synopsis FHWA Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1993 by :
Download or read book FHWA Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1993 written by and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technologies for Improving Safety Data by : Jennifer Harper Ogle
Download or read book Technologies for Improving Safety Data written by Jennifer Harper Ogle and published by Transportation Research Board. This book was released on 2007 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Technologies for Improving Safety Data explores new technologies for the acquisition, processing, and overall management of crash, roadway inventory, and traffic operations data. The report examines the current state-of-the-practice and state-of-the-art use of technologies for efficient and effective collection and maintenance of data for highway safety analysis." -- publisher's website.
Book Synopsis Automating the Analysis of Spatial Grids by : Valliappa Lakshmanan
Download or read book Automating the Analysis of Spatial Grids written by Valliappa Lakshmanan and published by Springer Science & Business Media. This book was released on 2012-06-14 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to create automated algorithms to process gridded spatial data is increasingly important as remotely sensed datasets increase in volume and frequency. Whether in business, social science, ecology, meteorology or urban planning, the ability to create automated applications to analyze and detect patterns in geospatial data is increasingly important. This book provides students with a foundation in topics of digital image processing and data mining as applied to geospatial datasets. The aim is for readers to be able to devise and implement automated techniques to extract information from spatial grids such as radar, satellite or high-resolution survey imagery.
Book Synopsis Application of Geographical Information System (GIS) in Road Safety Analysis by : Mohd Dasuki Abdul Wahab
Download or read book Application of Geographical Information System (GIS) in Road Safety Analysis written by Mohd Dasuki Abdul Wahab and published by . This book was released on 2008 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Identifying and Implementing Corridor Safety Improvements by : Jerome P. Breyer
Download or read book Identifying and Implementing Corridor Safety Improvements written by Jerome P. Breyer and published by . This book was released on 1999 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper explores Arizona's ability to adopt the FHWA Corridor Safety Improvement Program (CSIP) model and adapt it to work within the institutional, jurisdictional, resource, and funding framework of Arizona. The results of the project indicate that: 1) ADOT is only one of several state agencies that have a hand in promoting and providing highway safety; 2) All agencies that endeavor to improve highway safety should collaborate and focus on high-risk corridors to effectively develop multi-objective action plans and implement the most appropriate countermeasures; 3) The identification of high risk spots and corridors can be greatly assisted using contemporary Geographic Information Systems (GIS) spatial analysis tools and the Accident Location Identification Surveillance System (ALISS) crash database; and 4) The ADOT photo log and Global Positioning System (GPS)-derived corridor centerline files add a unique level of comprehension of safety problems by showing signing/striping/guardrail conditions in plan and profile views overlain with the ALISS crash history and a link to a photo log image of the roadway.
Book Synopsis Handbook of Research on Geoinformatics by : Karimi, Hassan A.
Download or read book Handbook of Research on Geoinformatics written by Karimi, Hassan A. and published by IGI Global. This book was released on 2009-01-31 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book discusses the complete range of contemporary research topics such as computer modeling, geometry, geoprocessing, and geographic information systems"--Provided by publisher.
Book Synopsis Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1994 by :
Download or read book Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1994 written by and published by . This book was released on 1995 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis GIS-based Crash Referencing and Analysis System by :
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.
