1. Traffic Signal Performance Measures in a Small Urban Area
Colin Kinton, PE Director of Transportation Engineering Beaufort County, SC

3. Beaufort Traffic Signal History
2005: Beaufort County Traffic Engineering Department Formed
40 Traffic Signals (170 Controllers)
2 Coordinated Systems
2017: 100 Percent-2070 Controller Deployment
85 Traffic Signals (80 Percent on Network)
8 Coordinated Corridors
1 Traffic Responsive Corridor
Countywide Traffic Data Management System

4. Traffic Fluctuations
Coastal, Low-Lying Area Between Savannah and Charleston
Summer Vacation and Tourist Destination
Hilton Head Island
Fripp and Hunting Islands
Historic Downtown Beaufort
Parris Island Marine Recruit Depot Graduation
Summer and Weekend Timing Plans
Special Shopping Plans for Thanksgiving and Winter Holidays
Hurricane Evacuation Timing Plans

5. Staffing County Traffic & Transportation Engineer
Signal Systems Engineer
Signal Technicians (3)

6. County Network Leased Fiber & Dark Fiber Cellular Modems
IP Point-to-Point Radios
8-Port Network Switches in Cabinets
Central Based Software on Virtual Servers
Signal System (Trafficware ATMS.now)
Data Management (Sensys Networks)
Emergency Preemption (Opticom CMS)
PTZ Cameras

7. Traffic Signal Performance Measure Needs
Scalable
Expandable
Cost Effective
Seamless with Traffic Signal Detection (one system)
Simple Reporting
Minimal Staffing Available
Local Server and Cloud Based Alternatives

8. Scalable Small Isolated Intersections Large High Volume Corridors
Minimize Multiple/Duplicate Devices
Minimize Technician Staff Time for Maintenance
Simplify System Management

9. Automated Data Needs Traffic Turning Volumes
Arrivals on Green / Arrivals on Red
Traffic Signal Phase Times
Delays
Vehicle Speeds / Average Corridor Speeds
Travel Times
Origin-Destination Data

10. Automated Signal Performance Measures – Test Location
Sensys Networks Implementation
Traffic Turning Volumes
Signal Coordination Response to Construction
Identify Delay Spikes by Time of Day and Day of Week
Signal Re-timing

11. Future Boundary Street Corridor Project (TIGER Funded)
1.5 Mile Urban Arterial
Complete Street Project with Emphasis on Pedestrian/Bike Friendly Encouraging Redevelopment
7 Signals (5 Existing, 2 New)
Traffic Adaptive Implementation
Automated Traffic Signal Performance Measures (Automated TMCs, Travel Time, O-D, AADT, Delays, Corridor Speed, Delays) Utilizing Sensys Networks
Downtown Moveable Bridge ITS (Travel Time and Delay Management)