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ASTI Transportation Systems

This article details the successful implementation of a Smart Work Zone System along I-44 in St. Louis County, spearheaded by ASTI Transportation Systems and MoDOT. The project, focused on pavement replacement at Antire Road, aims to enhance traffic management during construction, catering to heavy commuter and truck traffic without parallel routes. Key features include real-time traffic data, accurate alerts for motorists, and reduced work zone crashes. The innovative system provides critical information to promote safety and efficiency, optimizing traffic flow and supporting decision-making.

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ASTI Transportation Systems

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  1. ASTI Transportation Systems MoDOT I-44 Smart Work Zone System St. Louis County Noah Jenkin ASTI Transportation Systems, Inc. Brian Umfleet MoDOT St. Louis District

  2. Project Location St. Louis County I-44 Antire Road to Lewis Road

  3. Construction Scope of Work? I-44 Pavement Replacement at Antire Lane Shift and Crossover Configuration

  4. WhyI-44 ? • Responsive To Customers Needs • Heavy Commuter Traffic Route • Major Truck Freight Route • Lack Of Parallel Routes in close proximity

  5. Why use Smart Work Zone? • Accurate Real-Time Information • Helps Manage Traffic and Work Zone Delays • Real Time and Accurate Information • Reduce Work Zone Crashes

  6. Smart Work Zone System Goals • The goal of this system is to provide advance traffic condition information to motorists at key decision points due to construction activity. • Alternate Routing • Drive Time Through The Work Zone • Speeds Ahead • Slowed/Stopped Traffic Ahead

  7. Tremendous Specification!!! • Very specific. • Hardware reliability- Autonomy, auto alerts for low battery voltage, sensor must have min 230 watts of solar. • Performance percentages for data collection- i.e.. volume data 5% of truth. • All current and historical traffic data, must be available through project webpage • Clear testing plan to verify all performance measure are satisfied.

  8. ASTI’s System Hardware • Real-Time Workzone Management Systems • 7, Queue Trailers- Wavetronix HD Technology • 4, Wanco VMS • 2, BlueToad Bluetooth sensors • Digital Communications Package • ASTI’s CHIPS Software/Webpage • How It works- web based, polling.

  9. CHIPS Software Thresholds • Speeds greater than 40mph: • STAY ALERT • DO NOT TEXT AND DRIVE • Speeds between 15 mph and 40 mph: SLOWED TRAFFIC Y MILES- ahead • XX MINS 109 to 141- route • Speeds less than 15 mph: • STOPEED TRAFFIC Y MILES- ahead • XX MINS 109 TO 141- route

  10. MoDOT Was Hands On • MoDOT Overrode The VMS To Increase System Effectiveness. • Accident Past Lewis Road • Roadwork Mile Marker 269 • 1 Lane Traffic • Lane Closures • Lane Shifts Ahead

  11. Results • MoDOT Received Traffic Data 24/7 Which Allowed Them To Better Manage Traffic • Motorists Received Accurate Real-Time Traffic Information 24/7 • Aided In Preventing Incidents • Immediate Notification Of Delays • MoDOT Viewed This Particular Smart Work Zone As A Big Success Story • MoDOT Looking For Future Opportunities To Use Smart Work Zone Technology

  12. Questions / Comments? Noah Jenkin ASTI Transportation Systems Inc. 302-328-3220 noah@asti-trans.com Brian Umfleet MoDOT St. Louis District Brian.umfleet@modot.mo.gov

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