1. TDOT’s Approach to Changing Safety Analysis
Bruce Aquila, Hexagon Safety & Infrastructure
Executive Consultant
Tuesday, August 8, 2017

2. Introduction Background Business Drivers Solutions Benefits
HSIP
E-TRIMS
Image Viewer
Straight Line Diagrams
Benefits
Going Forward

3. Background

4. Background TDOT and Hexagon are Valued Partners
Solutions
TRIMS (1996)
HSIP (2006)
E-TRIMS (2008)
Image Viewer (2014)
SLD (2015)
LRS/Geospatial Platform
MGE (1993)
GeoMedia (1999)

5. Background Process Crashes Collected by Public Safety
TDOT Validates Location on Network
Crashes imported into TRIMS

6. Business Drivers - Federal
All Roads Across the State
Reduce the Number/Severity of Crashes
Reduce Types of Crashes (lane-departure, intersection, pedestrian, etc.)

7. Business Drivers - TDOT
Accurate/Reliable Strategic Highway Safety Plan
Flexibility as Priorities Change
Leverage all Crash Attributes
Timely Comparison of Locations (State Averages, Critical Rates)
Utilize Existing Systems to Expedite Analysis

8. Cause and Effect

10. Zero Fatalities !!!

11. Analytical Tools

12. One Tool Set

13. One Tool Set HSIP application ETRIMS ImageViewer
Identifies Areas for Potential Safety Projects
ETRIMS
Views all attributes for All TN Roadways
ImageViewer
Photo log
Identifies Active Transportation Projects in the Area
Provides Real-Time Crash Data as you Drive
Synchronized Maps (Including TDOT Aerial)

14. HSIP Application Data Driven Creates Manageable List of Locations
Urban or Rural
Spot, Section or Intersection
All Roads in TN

15. Enhanced TN Roadway Information Management System (ETRIMS)
Inventory Data
Route Features, Traffic, Geometrics, Roadway Description
Reports
Crash Summary Reports
Route Feature Reports
Traffic Reports
Simple and Advanced Queries

16. ImageViewer

17. SLD Browser Based Secured Access Administrative Environment
Modern Architecture (.html5)
Simplistic Configuration
Elegant Interface
Hearty Map Assimilation
Printing Capabilities

18. Benefits Improved Quality of Crash and Road Data
Map Visualization of Contributing Factors
Leverages Multiple Systems for Analysis
Quicker Identification of Project Areas
Faster Prioritization of Projects
More Accurate Decision Support
Timeliness of Safety Improvement Program
Safer Highways

19. Going Forward

20. Holistic Approach

21. Data Foundation and Establishment
Establish a Safety Data Model
Extract, Translate and Load Source Data
Assimilate into Safety Database
Normalize Data for Maintenance
Application Administration

22. Crash Editing Map Display Editing Workflow User Management Location
Attributes
Workflow
User Management

24. Crash Diagramming Overview Map Intersection Description (T, Y, etc.)
Location Diagram and Map
Crash Count Statistics

26. Analysis Hotspot Sliding Scale Intersection/Section Map Component
Benefit-Cost

28. Reporting Crash Reports HSIP Report Creation Ad-Hoc Reports
Schedule Mechanism ..

30. Questions ????

31. Thank You Bruce Aquila Executive Transportation Consultant
Hexagon Safety & Infrastructure