TDOT Smartway Maintenance - Tennessee Section Institute of

Intelligent Transportation Systems
Maintenance
TDOT SmartWay System:
Memphis Update
Presented by:
Michael Rebick, PE, M.S.
Project Manager
Gannett Fleming
2014 TSITE Spring Meeting
May 7th, 2014
Presentation Outline
 Tennessee Department of Transportation
(TDOT) SmartWay Maintenance
– General TDOT SmartWay Information
– Gannett Fleming’s Consultant Role
 TDOT ITS Maintenance Concepts
– Types of ITS Maintenance
– Managing ITS Maintenance
– Maintenance Challenges
The Tennessee Department of
Transportation (TDOT)
SmartWay ITSs

Nashville  Knoxville  Memphis  Chattanooga
TDOT SmartWay Transportation
Management Center (TMC)
Mission Statement
“It is the mission of Smartway to proactively
monitor the interstates to maximize traffic
flow and inform area motorists of abnormal
conditions. This is accomplished using field
devices, software and Smartway partners to
gather and disseminate real-time traveler
information.”
Overview of System Devices
TDOT SmartWay Systems
Memphis
Nashville
(for comparison)

83-mile coverage

169-mile coverage

42 Dynamic Message
Signs

59 Dynamic Message
Signs

115 CCTV Cameras

152 CCTV Cameras

359 Vehicle Detectors

461 Vehicle Detectors

Highway Advisory Radio
– 16 transmitters & 42
beacon signs

Highway Advisory Radio
– 14 transmitters & 47
beacon signs

Communications
– 60 fiber backbone with
4 fiber drops
–
Memphis to Jackson
50 GHz Wireless Link

Communications
– 60 & 72 fiber
backbone with 4 fiber
drops
Gannett Fleming’s Role
 Prime CEI Consultant (Construction,
Engineering, and Inspection)
– Provide Contract and Project Management
Services (Project Principle, Project Manager, Project
Administration)
– Provide Full-Time On Site Daily Inspection
 Assist with Program Management
– Track Device Outages
– Generate Maintenance Reports
– Advise on New Technology & System
Improvements
TDOT ITS
Maintenance Concepts
ITS Maintenance Categories
 18 months into a 3 year ~$2MIL contract (CNL146)
 Preventative/Scheduled
– PM Schedule of Devices
– Underground Infrastructure Locating
 Unscheduled
– Equipment Failure
– Acts of Nature
• Weather Events
• Natural Habitat
– 3rd Party Damage
• Motorist Hits
• Conflicting Construction Damage
ITS Maintenance
Categories…continued
 Special Repairs/Enhancements/Innovation
– Change Orders
– System Improvements
– Introduction of New Technology
 Equipment Replacement
– Replenish Spare Parts Inventory
– Upgrades to Existing Technology
 System Software and Network Support
– TMC Systems and Communications
Managing ITS Maintenance
 Rely on End User Notifications
 Rely on Automated System Notifications
 Effort Tracked using TDOT issued Response
Authorization (RA) Ticket
– Generated from State’s Maintenance Database
 Contractor Payments Based on Performance
– Thresholds of Device Operability
– Response Times Requirements
Recent Memphis System Changes
 CNL007 : I-40 Expansion Canada
Rd. to E/O Shelby/Fayette County
Line
– ~$2.5MIL
– 7 CCTV’s & 3 DMS’s
– Route traffic to SR385
 Wireless Upgrade on MS River Bridge and
in Arkansas
 Radar Detection Upgrade from X3 to G4
TDOT ITS
Maintenance/Operations
Challenges
Improper Dynamic Message Sign Use
Proper Dynamic Message Sign Use
Inconsistency Across Regions
*If possible, use
same device
manufacturer
statewide.
TDOT SmartWay TMC Operations
 Memphis :
5:00 AM – 11:00 PM, Daily
 Nashville :
24/7
• Nashville “takes” control of Memphis after
hours
 Varying Maintenance Notification Protocols
across TDOT Regions
 Conflicting Roadway Construction
• AHTD – mitigate responsibility
• TDOT – notify all stakeholders
• design, construction, and maintenance
TDOT Roadway Construction
Projects
 CNJ411 : I-240 Widening (Walnut Grove to
Quince Overpass)
• 4 trunk fiber hits in past year – 04/05/2014
most recently, cut comm to CCTV 106
 CNM305 : I-40/I-240/Sam Cooper
Interchange
• Maintain current ITS infrastructure
• Adding additional infrastructure
IS NEW TECHNOLOGY COMPATIBLE??
Past Obstacles Encountered
 Tornado struck the Arlington, TN towers
– Both the existing and proposed tower
were leveled (Pictures taken 2/5/08)
Acts of Nature
Weather Events
Equipment Replacement
Obstacles Encountered
 More Pictures of tornado damage at the
Arlington tower site
Obstacles Encountered
 More Pictures of tornado damage at the
Arlington tower site
Obstacles Encountered
 More Pictures of tornado damage at the
Arlington tower site
Multi-Agency Communications
Disruption
“We can not build our way
out of congestion. Planning
for mobility through system
management & operations is
the only alternative.”
-Phillip Tarnoff
University of Maryland
Head Instructor of Senior Management Operations
Academy
Questions?
THANK YOU
[email protected]
901-546-0540
http://www.tdot.state.tn.us/tdotsmart
way/
www.itstn.org