designing & implementing a gis-based roadway …...goal: turn the 6-step roadway safety...
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Designing & Implementing a GIS-based Roadway Safety Management System for CTDOTPresented by Eric Jackson, Ph.D.Dale Abbott, GISP
April 25, 2019
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Meeting with you today
CT Transportation Safety Research Center– Eric Jackson, PhD
• Director
VHB– Dale Abbott, GISP
• New England Applied Technology Manager
Agenda
Overview of Roadway Safety Analysis– Roadway Safety Overview– Data Sources– Roadway Safety Management Process
Overview of the CT Roadway Safety Management System (CRSMS)– CRSMS Demo– Question & Answer
Why conduct roadway safety analysis?
To effectively apply funds by selecting and
applying appropriate
countermeasures
To reduce the number and severity of
crashes
To gain a better understanding of safety
concerns on the roadways
To link crashes to their roadway environments
Roadway Safety Overview
Federal Transportation Legislation Requirements
What is the primary safety issue on your roads?
Data Sources?
There are 3 primary sources of data:
1. Crash Data
2. Facility Data (Roadway Data)
3. Traffic Volume Data
Crash Data
Facility Data
Traffic Volume
Data
GIS is Critical
Analysis is only as good as the input data…..
FHWA Roadway Safety Management Process (RSMP)
Network Screening
Diagnosis
Countermeasure Selection
Economic Appraisal
Project Prioritization
Safety Effectiveness
Evaluation
Identifying ways to address/mitigate the underlying safety issues identified through diagnosis.
Further investigating sites/issues identified in network screening to identify existing and potential safety issues.
Identify Contributing Factors
Analyzing the entire network to identify potential sites or issues for further investigation• Site-specific: identify specific sites for further analysis
(typically those with high crashes or over-represented crashes).
Project Overview Client: CTDOT
Highway Safety Improvement Program (HSIP) Funds
Goal: Turn the 6-Step Roadway Safety Management Process into a custom Safety Management Solution for CTDOT.
Implementation of the Highway Safety Manual
Agile Development Methodology– Incremental Development Strategy
Milestones– Network Screening Module Released in January 2018– Data Admin Module – Released in Fall 2018– Diagnosis Module – February 2019– Countermeasure Selection – May 2019– Remaining Modules – December 2019
CT Roadway Safety Management System
CT Roadway Safety Management System Custom, GIS-based Web Application
Leverages Esri Software Stack– ArcGIS Enterprise– ArcGIS JavaScript API (4.x)
SQL Server Back-end
.NET Core Framework
Angular Front End
CT Roadway Safety Management System 6 Modules from RSMP Plus
Data Admin Module
Sub-modules
Interactive Mapping
Charting/Visualization Tools
Automated Reporting Engine
Network Screening Module
Source: HSM, 2010
1. Establish Focus
2. Identify Network and Establish Reference Populations
3. Select Performance Measures
4. Select Screening Method
5. Screen and Evaluate Results
Diagnosis Module
Countermeasure Selection (in-progress)
Countermeasure Selection (in-progress)
Countermeasure Selection (in-progress)
Network Screening
Network Screening Results
Diagnosis Module
Automated Reporting Engine
Sample Report
Offices located throughout the east coast
Question & Answer
Offices located throughout the east coast
Thank you
Eric Jackson Ph.D. | [email protected] |860-486-8426
Dale Abbott, GISP | [email protected] | 603.391.3964
Network Screening Module
Network Screening Module
Network Screening Engine
Network Screening Engine
Network Screening Engine
Network Screening Engine
Network Screening Engine
Network Screening Engine
Network Screening Engine
Diagnosis Module
Diagnosis Module
Diagnosis Module
Diagnosis Module
Diagnosis Module
Diagnosis Module
Diagnosis Module
Diagnosis Module
Diagnosis Module
Parcel Mapping Experience
Diagnosis Module
Eric Jackson Ph.D. | [email protected] |860-486-8426
Dale Abbott, GISP | [email protected] | 603.391.3964
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Offices located throughout the east coast