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ITS IN WORK ZONES IS smart business

ITS IN WORK ZONES IS smart business. F. Todd Foster, P.E. VP of ITS Engineering Ver-Mac, Inc. September 28, 2016. AGENDA: Smart Work Zone (SWZ) History SWZ Goals – Improved Safety & Mobility SWZ Basics – Overview, Equipment, Sensor Options (Pros/Cons), etc.

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ITS IN WORK ZONES IS smart business

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  1. ITS IN WORK ZONES IS smart business F. Todd Foster, P.E. VP of ITS Engineering Ver-Mac, Inc. September 28, 2016

  2. AGENDA: • Smart Work Zone (SWZ) History • SWZ Goals – Improved Safety & Mobility • SWZ Basics – Overview, Equipment, Sensor Options (Pros/Cons), etc. • SWZ Warrants – When Do You Need a SWZ?, Solve Real Traffic Problems, C.O.’s • SWZ Applications – Queue Warning, Travel Time, Dynamic “Zipper” Merge, VSL, etc. • SWZ System Features – Development of Specifications = Easier to Use When Req’d • SWZ Data – 24/7 Access, Easy & Quick Custom Reports/Graphs/Exporting, Logging • SWZ Alerts – System & Equipment Alerts, Traffic Alerts • SWZ Traffic Performance Measures • SWZ System Integration – Push/Pull Data in XML or API with TMC/TOC’s & 511 agenda

  3. SWZ history / life cycle

  4. SWZ HISTORY 2000-03 2001-03 2004-08 2009+ 2008-14 2014 2014+ Late Teens SMART WORK ZONE LIFE CYCLE/TIMELINE

  5. SWZ encouraged by fhwa • EDC-3 SWZ Focus Areas: • Road Project Coordination • Technology Applications • SWZ Areas of Focus: • Queue Management Systems • Speed Management Systems • Dynamic Lane Merge Systems

  6. SWZ encouraged by fhwa SWZ Technology ApplicationGoals: • Goal1A • By December 2016, 35 State DOTs have implemented business processes for work zone ITS technologies as identified in the Work Zone ITS ImplementationGuide • What does thismean? • – Well-documented agency policies andprocessesto streamline consideration and use of work zone ITS technologies to minimize trafficimpacts

  7. SWZ goals

  8. Swz goals • GOALS: • Provide real-time traffic information to motorists upstream of key decision points to help increase SAFETY and MOBILITY. • SYSTEM REQUIREMENTS: • Single Source (Turn-Key) Proven Systems • Portable & Real-Time • Automated • System Types • MOVING • SHORT TEM • LONG TERM • SWZ APPLICATIONS: • Queue Warnings • Travel/Delay Time • WZSL/PVSL • Dynamic Merge

  9. SWZ basics - overview

  10. SWZ basics - overview SWZ Software COLLECT TRAFFIC DATA ANALYZE & COMPUTE AUTOMATE & OUTPUT

  11. SWZ basics – equipment

  12. Swz EQUIPMENT - PORTABLE MESSAGE SIGNS LARGE PCMS-1210 3 Lines x 8 Characters NTCIP X-LARGE PCMS-1500 Full Matrix NTCIP SMALL PCMS-548 Full Matrix New 16,000 COLORS Full Matrix MEDIUM PCMS-320 Full Matrix

  13. Swz EQUIPMENT - Traffic sensors Traffic Sensor Trailer

  14. FEATURES Doppler, Radar, Modem & GPS Attaches to Any Traffic Control Device Quick & Easy Deployment (2-3 min.) Integrate w/Message Sign (Q-Warnings) Swz EQUIPMENT - speed-MAC

  15. Swz EQUIPMENT - camera trailers

  16. Swz EQUIPMENT - speed awareness trailers GUARD-MAC

  17. SWZ sensors (pros/cons)

  18. SWZ sensors - types • Most Common Traffic Sensor Inputs • Consider system with mixture of sensor types • Spot Detection (Queue Warning Systems) • Doppler Radars (Spot Detection) • PROS: Low Cost, Easy to Aim, Great for All Speeds • CONS: Occlusion, No Lane by Lane Data, Vol. Data ~ 80% • Microwave (side-fire) Radars (RTMS, Wavetronix, etc.) • PROS: Speed/Vol./Occ. Bi-Directional Data/Lane • CONS: Cost, Time to Configure, Shifting Traffic • Point-to-Point Detection (Travel Time Systems) • BlueTooth Sensors (BlueTOAD, BluFax, Acyclica, Iteris, etc.) • PROS: Low Cost, Easy to Aim, Great for All Speeds • CONS: Occlusion, No Lane by Lane Data, Vol. Data ~ 80% COLLECT TRAFFIC DATA

  19. SWZ sensors – decision matrix

  20. SWZ warrants – when to use a swz

  21. FHWA Work Zone ITS ImplementationGuide SWZ – system warrants/criteria • Provide guidance on implementing ITS in work zones toassist public agencies, design and construction firms, and industry stakeholders • Presented through a 6-Step Systems Engineering Approach toWZ ITSimplementation http://www.ops.fhwa.dot.gov/publications/fhwahop14008/fhwahop14 008.pdf

  22. SWZ – system warrants/criteria Change Orders allow for quick and easy Queue Warning systems to be installed. Some DOT’s are letting service contracts and renting by the day or week when needed.

  23. SWZ – applicationsScalability & flexibility

  24. SWZ Applications - QUEUE WARNING SYSTEMS

  25. Swz Applications - queue warning SAFETY

  26. Acrossapproximately • 200 deployment nights: • Total crashes reduced 18 to45% whendeployed • Crash costreductions between $6,600and • $10,000/night Queue warning Effectiveness (texas dot)

  27. Queue warning Effectiveness (texas dot)

  28. Compared 2010 and 2011 Construction Years for 5 projects alongI-55 • Only looked at rear-end accidents because that iswhat • system was setup toreduce Queue warning Effectiveness (ILLINOIS dot) *Does notaccount for ADT using Alt Routes

  29. SWZ Applications – Travel time SYSTEMS TRAVEL TIME / DELAY TIME / ALTERNATEROUTE Travel Time and Alternate Route applicationsare continuously updated automatically to provide current travel time or delay time between the driver’s location and a specific destination downstream. The benefit is the motoring public is informed and can make alternate route decisions. It also prevents long unexpected backups and potential rear-endcollisions.

  30. Early LaneMerge Late LaneMerge (a.k.a. the Zipper merge) SWZ Applications – DYNAMIC MERGE SYSTEMS • Advises drivers to use both lanes up to the mergepoint • Works better for high traffic volumes, wherequeueing upstream of is expected tooccur. • Benefits: • Maximize available storage upstream of work zone forreducing total queuelength. • Reduces confusion between driverswho think they should merge early vs.drivers that use open lanes as far aspossible. • Clarifies right-of-way at mergepoint (“alternatemerge”) • Actually allows 15% more traffic to pass through in a given time period • Advises drivers to move out of closed lane well before theforcedmergepoint • Works best when there is a low traffic volume combined withhigh averagespeeds • Benefits: • Less aggressive and unsafemerging • Advanced warning allows drivers adequate distance to merge • Gives positive instructions on lane usage Source: https://www.workzonesafety.org/fhwa_wz_grant/atssa/atssa_dynamic_lane_merging

  31. NC DOT - ZIPPER MERGE LAYOUT Miles Before Taper 3.5 2.5 2.0 1.0 0.5 0.33 0.1 0.2 Source: North Carolina DOT

  32. Goals: • Speed Harmonization (<15 mph of median speed) • Respect Times/Locations Where Speeds Can Be Raised • Lower Speeds When & Where Workers are Present • Ensure WZ Speed Limits are Correct without Driving Job • Electronic Record of Speeds w/Time/Date Stamps & Location • Easily Relocate Signs to Follow Work Progress • Modes: • Manual/Scheduled by T.O.D. • Semi or Fully Automated (based on speeds downstream) SWZ Applications – pvsl equipment

  33. Typical VSL Signage SWZ Applications – typical pvsl system Source: FHWA EDC-3 Smart Work Zone Webinar & Utah DOT – Josh Van Jura

  34. UDOT PVSL LAYOUT SWZ Applications – UDOT pvsl system Source: FHWA EDC-3 Smart Work Zone Webinar & Utah DOT – Josh Van Jura VSL Subsystem Queue Warning Subsystem

  35. SWZ system features / Specs

  36. SWZ Specification considerations • SWZ SPECIFICATION CONSIDERATIONS: • Performance Based Specifications • Proven & Experienced Providers • System Submittals • System Components • Signs (NTCIP), Sensors, Cameras, System (NTCIP), Communications • Malfunction Alerts & Remote Resets • Traffic Alerts (Condition Change Alerts, Speed Alerts, Travel/Delay Alerts) • Transparent Systems (24/7 Access to All Historical Data) • Public Web Site (Optional) • Central SWZ System • Security & Levels of Access • System Logic • System Logs (Messages, Data, Actions, etc.) 24/7 access • 1:Many Control & Simultaneous Control • Mobile Access to All Current Status (Message, Video, Speeds) & Overrides

  37. SWZ Specification considerations • SWZ SPECIFICATION CONSIDERATIONS: • Central SWZ System (cont.) • System Data (Access, Graphing, Exporting) & Customization & Device Merging • Interactive List & Map Views • Common mapping program • GPS Icons for all field devices • Real-Time Device Status (NTCIP Sign Status & Logging) • Deployment & Operational Testing • On-site SWZ supervisor & Response Times/Penalties, Spare Equipment/Parts • Training • Measurement & Payment Terms • Mobilization • System (Monthly) • Equipment (Unit-Months) • Relocations/Recalibrations (Each)

  38. SWZ AUTOMATED ALERTS Customized Alerts & Custom Mail Lists

  39. SWZ AUTOMATED ALERTS • HELPFUL ALERTS INCLUDE THE FOLLOWING: • Project Name • Roadway, Direction, Location (Mile Post), GPS • Device Name & Description • Alert Type (Comm., Power, GPS, Traffic, etc.) • Alert Status (Incident or Okay) • Good to know when things return to normal • Local Time Zone Date & Time Stamp • Automatic Delivery to Email or SMS (Text) • Multiple Customized Alerts with Variable Thresholds • Multiple Alert Deliver Lists (for System Users & Non-Users)

  40. SWZ AUTOMATED ALERTS (MALFUNCTION/FLEET) Alarm Type Malfunction Alert Okay Alert Communications: Communications LostCommunications OK Low Power: Battery Voltage < 11.8 VBatteries OK No Speed: Device X = No Speeds for Last XX Minutes Device X = Speed Data Now Available GeoFence: Device X moved more than 500 ft, Current GPS = X, Y

  41. SWZ AUTOMATED ALERTS (TRAFFIC) Alarm Type AlertDetails____________________________ Low Speed: Sensor X < YY mph Sensor X > YY mph for past ZZ min. Condition Change EB I-94 MM 123 Traffic = SLOW (Sensor 03 < 45 mph at MM 120) EB I-94 MM 123 Traffic = STOP & GO (Sensor 04 < 20mph @ MM..) EB I-94 MM 123 Traffic = FREE FLOW PVSL Speed PVSL 01 Recommended Speed = 50 mph Travel Time Route: NB I-35 (7.0 miles) > 25 minutes Route: NB I-35 (7.0 miles) < 10 minutes

  42. Client server main VIEW Interactive list & map views

  43. Customized Public web sites

  44. XML FEEDS XML FEED EXAMPLE

  45. SWZ system data

  46. Message sign history

  47. SPEED SENSOR DATA

  48. jam Multiple sensors = travel time route

  49. Questions? Todd Foster todd.foster@ver-mac.com Contact: jamlogic@ver-mac.com Phone: 888-488-7446

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