Safety Analysis Management System Using Technology to Save Lives Jim C. Willis, P.E. Safety Engineer

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Safety Analysis Management SystemUsing
Technology to Save Lives Jim C. Willis,
P.E.Safety EngineerMississippi Department of
Transportation
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SAMS Overview

• Goals
• Query Methods
• Analysis
• Reports
• Admin Functions

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What are the Goals?

• NUMBER 1 Goal!!!
• Help Reduce Fatal and Injury Producing Crashes!

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EVERY YEAR More Than 43,000 People Die
Needlessly in the U.S.
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EVERY YEAR More Than 43,000 People Die
Needlessly in the U.S.
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EVERY YEAR More Than 43,000 People Die
Needlessly in the U.S.
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EVERY YEAR More Than 43,000 People Die
Needlessly in the U.S.
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EVERY YEAR More Than 43,000 People Die
Needlessly in the U.S.
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EVERY YEAR More Than 43,000 People Die
Needlessly in the U.S.
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EVERY YEAR More Than 43,000 People Die
Needlessly in the U.S.
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Crashes are not a problem.Are they?

• In Mississippi
• Around 900 people are killed a year (2 to 3 a
  day)
• Approximately 32,000 injuries a year (4 an hour)

• In the U.S.
• Every 13 minutes someone dies in a highway crash.
• Every 15 seconds someone is injured on a highway.
  

Traffic Crashes are a PROBLEM!!!
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What are the Goals for SAMS?

• Help Reduce Fatal and Injury Producing Crashes
• Quickly Identify Locations with Opportunity
• Identify Countermeasures for Individual Locations
  and for the entire Road Systems
• Evaluate Highway Safety Improvement Program and
  Projects

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How are SAMS functions categorized?

• Data
• Query
• Mapping
• Analysis
• Reports
• Admin

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Data Layers and Sources

• Planning Division - MDOT
• Road Network
• Roadway Characteristics
• Traffic Volumes
• Traffic Eng Division MDOT
• Sign Data
• Signal Data
• Research Division MDOT
• Pavement Data
• Bridge Division MDOT
• Bridge Attributes

• MS Dept of Public Safety
• Crash Data
• Narratives
• Crash Diagrams
• NCHRP Report 500 Series
• Crash Reduction Factors
• TeleAtlas
• Local Roads (Line work and RWC)
• NHTSA
• FARS

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Data Staging Processes

• Staging Processes
• Validation Checks
• Aliasing
• Cities
• Route Ids
• Route Concurrencies
• Crash Snapping
• Assigning Attributes to Crash Data

Data is loaded and ready to Query
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Attribute Queries
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Spatial Query
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SAMS Mapping Output
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Mapping Functions
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SAMS Data Grid
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Column Selector for Data Grid
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Data Grid Functions
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MUCR Diagram and Narrative
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SAMS Analysis Functions

• Sliding Scale Analysis
• Cost-Benefit Analyses
• Rank High Crash Locations
• Severity Index
• Crash Rates and Critical Crash Rates
• Semi Automated Countermeasures

• Crash Rates for Homogenous Intersections and
  Highway Sections
• Identify Over-Representation of Crash Types at
  Intersections Highway Sections
• Pre and Post Improvement Crash Rate Analyses

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What are the SAMS Reporting functions?

• Standard Reports
• Annual Crash Reports
• Customized Reports
• Maps and Printing
• Export from Data Grid
• Interactive Data Grid Reports
• User Reporting Classes (admin)

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SAMS Administrator Functions

• Crash Data Loading
• Alias Management
• Column Selector Defaults for Data Grid
• Help
• Formula Edits
• Security
• User Analysis Classes
• User Reporting Classes
• Geographic Restrictions
• MDOT User Classes
• Site User usage
• Logins for internal external

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Questions?