SHRP 2 RID Roadway Information Database
Research Team CTRE/Iowa State University: Omar Smadi Neal Hawkins Zach Hans Basak Bektas Nick Burdine Cambridge Systematics: Bruce Spear Kevin Howard
Goal Design, Build, and Populate Roadway Information Database Linked to Support Safety Analysis NDS Database
6 NDS Sites
Data Sources (6 Sites) Existing (readily available DOT information) Supplemental Information Critical in further characterizing or analyzing operations of a roadway segment Collected (using a mobile van ~ 25,000 collection miles)
Database Design
Roadway Information Database 5.0 0.0 0.0 Design Assumptions: (3) 1.0 Roadway features and attributes 3.5 will be Route #1 # Lanes Data will be linked to (2) 3.3a geospatial (4) 3.5 roadway network (i.e., Geodatabase) locationally referenced as linear or point events along the roadway network All linear and point event data will be stored as tables in a relational database management Intersection system (RDBMS) Road Network (2) 5.0
Roadway Information Database Design Assumptions (continued): Roadway network and route system will initially be built using ESRI ArcGIS software. Roadway data tables will initially be constructed using SQL Server 2008 software. Supports large tables (> 1 million rows) Facilitates creation of queries and data views Allows geometry to be stored within the tables Final database will be software neutral to the extent possible.
Roadway Data Model 5.0 # Lanes (2) 3.3 (4) 3.5 (2) 5.0 0.0 (3) 1.0 3.5 0.0 Route #1 Intersection Road Network
Roadway Data Model Overview Route System Roadway Attributes Table LRMEquivalency Line feature class Roads Line feature class Routes Table LRMPosition Attributed relationship class LRMPositionHasGeoPosition Table Alignment Table Aspect Table Intersection Table Lane Table AspectType Many to Point feature class GeoPosition many Table SignAssembly Table Shoulder Table Sign Locations 10
Data
Existing Data
Existing Data 1. Acquire a consistent base center line network (6 NDS sites and beyond) 2. Work with the DOT in each area to: Acquire readily available data Develop a list of resources (contacts, data) for local governments within the study areas
Acquired DOT Data (to date)
Supplemental Data
# Item Category Anticipated NDS Site Coverage Cost to acquire/integrate NY FL PA IN NC WA 1 Crash Data Common All 1.0 1.0 1.0 1.5 1.0 1.0 2 Traffic Information - AADT Safety All 1.0 1.0 1.0 1.0 1.0 1.0 3 Work Zone Common Partial 1.5 2.0 2.0 2.5 1.5 2.5 4 Winter Road Conditions (DOT) Common Partial 1. 0 1. 0 1. 0 1. 0 3. 0 5 Local Climatological Data (LCD) NOAA Common All 1.5 1.5 1.5 1.5 1.5 1.5 6 Nonrecurring Congestion Reliability Partial 1. 5 3. 0 1. 5 1. 5 3. 0 7 Travel Time Data Reliability Partial 1. 0 1. 0 2. 5 8 Aerial Imagery Common All 1.0 1.0 1.0 1.0 1.0 1.0 9 Speed Limit Data Safety All 1.0 1.0 1.0 1.0 1.0 1.0 10 Speed Limit Laws Policy All 1.0 1.0 1.0 1.0 1.0 1.0 11 Cell phone and text messaging laws Policy All 1.0 1.0 1.0 1.0 1.0 1.0 12 Automated enforcement laws Policy All 1.0 1.0 1.0 1.0 1.0 1.0 13 Alcohol-Impaired and Drugged Drivers laws Policy All 1.0 1.0 1.0 1.0 1.0 1.0 A blank does not mean that an item will not be acquired. KEY: Anticipated costs/effort to acquire and integrate: No information 1. 0 Low 1. 5 2.0 Medium 2.5 3.0 High
# Item Category Anticipated NDS Site Coverage Cost to acquire/integrate NY FL PA IN NC WA 14 Graduated driver licensing (GDL) laws Policy All 1.0 1.0 1.0 1.0 1.0 1.0 15 State motor cycle helmet use laws Policy All 1.0 1.0 1.0 1.0 1.0 1.0 16 Seat Belt Use laws Policy All 1.0 1.0 1.0 1.0 1.0 1.0 17 Cooperative Weather Observer/Other Sources Common All 1.5 1.5 1.5 1.5 1.5 1.5 18 Traffic Data - Continuous Counts (ATR) Safety Partial 3.0 1.0 2.5 2.0 1.0 19 Traffic Data -Short Duration Counts Safety Partial 3.0 1.0 2.5 2.0 1.0 20 Automated Enforcement Safety Partial 2.5 2.5 1.5 3.0 21 Changes to existing infrastructure condition Safety Partial 2.5 2.5 2.5 2.5 2.5 2.5 22 Roadway Capacity Improvements Common Partial 2.5 2.5 2.5 2.5 2.5 2.5 23 Innovative Treatments Safety Partial 2.5 2.0 24 511 Information Common Partial 2.0 2.0 1.5 2.5 2.0 2.0 25 Recurring Congestion Reliability Partial 2.0 KEY: Anticipated costs/effort to acquire and integrate: No information 1. 0 Low 1. 5 2.0 Medium 2.5 3.0 High
Mobile Data Collection
Mobile Data Scope: Approximately 25,000 collection miles in the 6 NDS sites Method: Instrumented Van (Fugro- Roadware)
Mobile Data Data Element Curvature Length Curvature Radius PC/PT Grade (+ or ) and Cross Slope/Super Elevation Lane Width/Type Paved Shoulder Width/Type Speed Limit Signs (location) Intersection Information Presence of Lighting/Medians/Rumble Strips Front ROW Video Log
Mobile Data Collection Data Collection Plan Which roads to collect? Routing: Maximize collection to match where the NDS participants are driving Not just 1 driver Worked with VTTI to get GPS traces
Traces from VTTI (NC)
Mobile Data Collection - 2011 NY: 520 collection miles NC: 615 collection miles FL: 705 collection miles A total of about 1,840 miles
Mobile Data Collection - 2012 Developed routing plans for: NC: FL: WA: NY: IN: 3,200 miles 3,600 miles 4,160 miles 3,200 miles 2,900 miles 2012 collection started in NC and FL in June and was completed in October
North Carolina 615 miles in 2011 3200 miles in 2012 28% Urban 72% Rural
Florida Blue: Collected in 2011 Red: proposed for 2012 705 miles in 2011 3600 miles in 2012 60% Urban 40% Rural
Washington 4160 miles in 2012 72% Urban 28% Rural
New York Blue: Collected in 2011 Red: proposed for 2012 520 miles in 2011 3,300 miles in 2012 30% Urban 70% Rural
Indiana 2,900 miles in 2012 33% Urban 67% Rural
Lighting: N/A Rumble Strips: N/A Unpaved Shoulder: N/A Grade, Cross Slope Paved Shoulder 3 Mix/Combo N/A 3 Mix/Combo 4 Mix/Combo Median Flush Paint. N/A Flush (Painted) N/A Flush (Painted) N/A Flush Paint. Lanes Thru Lane: 1 (12 ) Thru Lane: 1 (11 ) Right Turn: 1 Thru Lane: 1 (12 ) Flush Paint. Lanes Median Thru Lane: 1 (12 ) Left Turn Lane: 1 Thru Lane: 1 (14 ) Deccel. Lane: 1 Thru Lane: 2 (11 ) Deccel. Lane: 1 Thru Lane: 1 (12 ) Accel. Lane: 1 N/A Flush (Painted) N/A Flush (Painted) N/A Thru Lane: 1 (21 ) Flush Paint. Paved Shoulder 2 Mix/Combo 0 Mix/Combo 3 Mix/Combo 2 Mix/Combo Grade, Cross Slope Unpaved Shoulder: N/A Rumble Strips: N/A Lighting: N/A
Front ROW Images Route Name Direction Chainage State Collection Date
Data Linking Roadway Information Database NDS Database
SHRP 2 S-04A Roadway Information Database Development and Technical Coordination and Quality Assurance of the Mobile Data Collection Project (S04B)