North 27th Street Adaptive Signal Control Technology Project

1
North 27th Street Adaptive Signal Control
Technology Project

• Randy Hoskins, P.E.
• City of Lincoln
• Assistant City Engineer

2

• 5-Mile Corridor
• 17 Intersections
• 2M Project Cost
• 90 Federal
• 10 Local
• Improve
• Safety
• Operations
• Mobility
• Partnership with UNL

Fletcher Ave
Superior St
N. 27th St
Adams St
Holdrege St
O Street
3
Safety Improvement

• 1,148 Crashes in a 3 year period
• 73 million cost to community
• 10 reduction in crashes (conservative)
• Benefit to Cost ratio 171 ( efficiency
  savings)

4
Efficiency

• 17,000 - 36,000 vehicles per average day
• Currently running 7 timing plans per day
• Heavy seasonal shopping traffic
• Husker event traffic
• I-80 detour route

5

• Normal Process
• ASCT - Automated Process

6
N. 27th Street Adaptive Signal Control
Technology Corridor
No modifications to timing
Delay
Incremental re-timing (every 3 to 5 years)
Complaints
Traffic Adaptive
Time (years)
7
Project Upgrades

• Traffic signal controllers and cabinets
• Fiber-optic conduit and cable
• Vehicle detection equipment
• Adaptive signal equipment

8
The Beauty of ASCT

• No longer tied to dials
• Smart system
• Adapts to existing
• conditions
• Greater flexibility

9
UNL Involvement

• Existing project in corridor traffic sensors
• Real-time data collection
• Sensors, cameras, traffic signal controllers
• Connections to UNL traffic lab
• Before/after data and studies
• Real-world, hands-on
• opportunities for students

10
Project Schedule

• Updates to ITS architecture
• Project design
• Construction - Fall 2014