00802506

Component

https://doi.org/10.3141/1717-04

http://scholar.google.com...eyer&publication_year=2000

The Arizona Department of Transportation (ADOT) recognizes that a new paradigm in highway safety evaluation was brought about by the advent of advanced technologies such as photo log, geographic information systems (GIS), and global-positioning satellite systems. Whereas these technologies are known to serve distinct singular purposes in a highway agency, ADOT has endeavored to explore the possibilities of integrating these technologies for the purpose of providing an all-encompassing perspective of crash history and roadside characteristics in a multimedia display of GIS maps and related photo imagery. The research provides the account of an analytic tool-development process aimed at improving the recognition of highway safety hazards. These hazards might otherwise be apparent if not for the relative complexity of existing relational databases and spatial GIS infrastructure at ADOT. Previous methods of mining data from the ADOT crash databases were limited in functionality as well as in reliability. By promoting the "visualization" of highway safety conditions, the advanced technologies open a wealth of new opportunities in identifying problematic roadside conditions and crash histories. This is expected to lead to an improved economy of implementing safety improvements that are designed properly to mitigate the "real" conditions that can be identified. The research is a companion to the larger, Federal Highway Administration (FHWA) sponsored research into establishing a corridor safety-improvement program for Arizona (FHWA Report FHWA-AZ98-458).

This paper appears in Transportation Research Record No. 1717, Highway and Traffic Safety: Crash Data, Analysis Tools, and Statistical Methods.

English

p. 19-27

2000

Transportation Research Record

0309066999

Figures (9)

Crash data; Data mining; Geographic information systems; Global Positioning System; Hazard analysis; Hazard mitigation; Highway safety; Improvements; Photologging; Visualization

Arizona

Design; Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure

TRIS, TRB, ATRI

Nov 13 2000 12:00AM

• ACCIDENT PREDICTION MODELS WITH AND WITHOUT TREND: APPLICATION OF THE GENERALIZED ESTIMATING EQUATIONS PROCEDURE
• ANALYSIS OF ACCIDENT-REDUCTION FACTORS ON CALIFORNIA STATE HIGHWAYS
• ANALYTICAL MODELING OF DRIVER-GUIDANCE SCHEMES WITH FLOW VARIABILITY CONSIDERATIONS
• CRASH- AND INJURY-OUTCOME MULTIPLIERS
• DAY-TO-DAY TRAVEL-TIME TRENDS AND TRAVEL-TIME PREDICTION FROM LOOP-DETECTOR DATA
• DEVELOPMENT OF A RELATIONAL ACCIDENT DATABASE MANAGEMENT SYSTEM FOR MEXICAN FEDERAL ROADS
• EFFECT OF SPEED, FLOW, AND GEOMETRIC CHARACTERISTICS ON CRASH FREQUENCY FOR TWO-LANE HIGHWAYS
• ESTIMATING TRAFFIC ACCIDENT RATES WHILE ACCOUNTING FOR TRAFFIC-VOLUME ESTIMATION ERROR: A GIBBS SAMPLING APPROACH
• EVALUATING THE EFFECTIVENESS OF NORWAY'S "SPEAK OUT!" ROAD SAFETY CAMPAIGN: THE LOGIC OF CAUSAL INFERENCE IN ROAD SAFETY EVALUATION STUDIES
• EXAMINATION OF METHODS THAT ADJUST OBSERVED TRAFFIC VOLUMES ON A NETWORK
• GUIDELINES FOR IDENTIFICATION OF HAZARDOUS HIGHWAY CURVES
• HEURISTIC VEHICLE CLASSIFICATION USING INDUCTIVE SIGNATURES ON FREEWAYS
• INJURY EFFECTS OF ROLLOVERS AND EVENTS SEQUENCE IN SINGLE-VEHICLE CRASHES
• METHOD FOR IDENTIFYING FACTORS CONTRIBUTING TO DRIVER-INJURY SEVERITY IN TRAFFIC CRASHES
• PREDICTION OF RISK OF WET-PAVEMENT ACCIDENTS: FUZZY LOGIC MODEL