Author: Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 146
Book Description
Systematic Identification of High Crash Locations
Author: Sensitivity Analysis of High Crash Location Ranking Factors
Author: Rajasekhar BasavarajuPublisher:
ISBN:
Category :
Languages : en
Pages : 314
Book Description
One goal of transportation safety engineers is to identify and prioritize safety deficient locations along roadways. The identification of such locations allows examination of possible engineering, enforcement, and/or educational measures to improve safety. In general, each state in the U.S. selects its own methodology for identification and prioritization of high crash locations. The Iowa Department of Transportation (DOT) annually identifies and then ranks the top 100 high crash locations using a combination of crash frequency, crash rate, and value loss. In the present methodology adopted by Iowa DOT for ranking of high crash locations, the crash database is filtered before the potential high crash locations are ranked. But, the currently used filter seems to inherently favor locations with fatalities. Hence, two new filters with a potential to reduce the bias have been analyzed and the sensitivity analysis of the two filters is explained as part of this thesis. Also, in the current methodology, once the crash database is filtered for the potential high crash locations, three ranking factors, crash frequency, crash rate, and value loss are used for ranking the locations. In the current process, all the three ranking factors are considered equal contributors to the final ranking position of a high crash location. This equal weightage does not seem to be correct. Hence, the impact of different weighting is considered and a sensitivity analysis of twenty-seven new combinations of ranking factors is performed as part of this research.
Identification and Analysis of High Crash Segments on Interstate, US and State Highway Systems of Arkansas [MBTC 2099]
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Author: Ghulam H. BhamPublisher:
ISBN:
Category : Traffic accidents
Languages : en
Pages :
Book Description
Manual on Identification, Analysis and Correction of High Accident Locations
Author: Jerry L. GrahamPublisher:
ISBN:
Category : Traffic accident investigation
Languages : en
Pages : 148
Book Description
This manual describes the high-accident location analysis (HAL) system which will allow the user to identify, analyze, and correct high-accident locations.
HAL Manual
Author: University of Missouri--Columbia. Department of Civil and Environmental EngineeringPublisher:
ISBN:
Category : Roads
Languages : en
Pages :
Book Description
Identification and Surveillance of Accident Locations
Author: United States. Federal Highway AdministrationPublisher:
ISBN:
Category : Traffic accidents
Languages : en
Pages : 64
Book Description
Transportation Research Record
Author: Midblock Crash Analysis Using Precisely Geocoded Crashes
Author: Wayne SarasuaIndentifying Traffic Safety Needs - a Systematic Approach
Author: Andrew P. TarkoPublisher: Purdue University Press
ISBN: 9781622600212
Category :
Languages : en
Pages : 128
Book Description
The Indiana Department of Transportation (INDOT) manages road safety in Indiana through safety emphasis areas, identification of safety needs within these areas, and development and implementation of transportation interventions that address the safety needs. Indiana applies system-wide performance screening to state roads using the somewhat limited, non-integrated tools available to date. A site-specific countermeasure development and evaluation process (scoring) is being used to determine essential project intent and merit or cost-effectiveness. This project addresses the need for a unifying approach to data-driven identification of safety emphasis areas and safety improvement projects via a systematic evaluation of safety needs in the Indiana road network. Such a method must utilize a database that integrates the Indiana state network, traffic, road inventory, and crash data. A method for safety screening of state roads in Indiana was developed with the following screening tasks in mind: (1) Identifying high crash locations (segments, intersection, ramps and bridges), corridors, and areas in terms of high crash frequency, crash rate, or proportion of a particular crash type. (2) Facilitating program-based screening (e.g., shoulder widening, median improvement). (3) Facilitating special programs and projects (e.g., five percent report). In order to ensure the versatility of screening tasks and the data maintenance, four components were included in the screening tool: (1) data management, (2) standard screening, (3) roads clustering and special studies, (4) results presentation.
Comparison of Identification and Ranking Methodologies for Speed-related Crash Locations
Author: Christopher Michael MonserePublisher:
ISBN:
Category : Traffic accidents
Languages : en
Pages : 98
Book Description