wisconsin traffic operations and safety laboratory department of civil and environmental engineering...
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Wisconsin Traffic Operations and Safety LaboratoryWisconsin Traffic Operations and Safety Laboratory
Department of Civil and Environmental EngineeringDepartment of Civil and Environmental EngineeringUniversity of Wisconsin-MadisonUniversity of Wisconsin-Madison
The Wisconsin DOTThe Wisconsin DOTMobile Probe Data EvaluationMobile Probe Data Evaluation
Steven T. Parker, Ph.D.Traffic Operations and Safety (TOPS) Laboratory
University of Wisconsin-Madison
USDOT Probe Data Workshop IIPhiladelphia Marriott Downtown
September 10-11, 2009
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
Outline
WisDOT Mobile Probe Data Overview Project Timeline Elements of the RFI and RFP Contract Awards and the Procurement Process UW TOPS Lab Evaluation Study Lessons Learned Contact Information
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationProject Objectives
Compare two different traffic probe technologies• Cell-phone based tracking• Fleet-based GPS tracking
Cover key intercity corridors• Milwaukee - Green Bay• Milwaukee – Madison• Milwaukee – WI / IL State Line
Evaluate effectiveness for control room operations• Real-time link speed data• Incident detection• 511 traveler information
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationProject Management
WisDOT Statewide Traffic Operations Center (STOC)• WisDOT Probe Data Project Management• ATMS, 511, Statewide Incident Notification
UW-Madison Traffic Operations and Safety (TOPS) Lab• RFI / RFP Development• Two-Year Probe Data Evaluation Study• Probe Data Archiving
TransCore• Acceptance Test Phase Management• ATMS Integration
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationTimeline
July 2006 – RFI Issued August 2006 – RFI Materials Due, One-on-One Meetings September 2006 – WisDOT RFP Issued October 2006 - Q&A Addendum, Proposals Due December 2006 – Contract Awards June 2007 – Inrix SAT / 30-Day Test August 2007 – Inrix Annual Service Agreement Starts September 2007 – AirSage SAT I February 2008 – AirSage SAT II June 2008 – AirSage Contract Discontinued September 2009 – Inrix Contract End-Date
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationElements of the RFI
Facilitated by UW TOPS Lab Looking for Non-Infrastructure Solutions for:
• Roadway Link Speeds• Enhanced Traffic Incident Detection• Support for 511 Traveler Information• Alternate Route Options• Complement Connected Vehicle Options
One-on-One Meetings• In Conjunction with the 2006 ITE Annual Meeting and Exhibit
in Milwaukee
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationElements of the RFI, Continued
RFI Sought to Clarify:
• Reliability• Coverage• Privacy and Data Security• Licensing Issues• Time Frames• Use of Standards• Current or Future Projects
• Business Models• Data Ownership• Data Packaging Options• Costs • Archiving Capabilities• Physical and Logical
Architecture
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationElements of the RFP
Predefined Intercity Corridors Mobile Oriented Probe Data Technologies Data Elements / Requirements Systems Acceptance Test (SAT) 30-Day Acceptance Testing Contracting Options
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationElements of the RFP
Predefined Intercity Corridors• I-90 / 94 – Waukesha to Madison – Interstate Only• I-90 / 94 – Waukesha to Madison – Interstate Plus Alternate
Routes *• I-94 Milwaukee to WI / IL State Line• I-94 Milwaukee to WI / IL State Line with Alternate Routes• I-43 / US 41 – Milwaukee to Green Bay *
Mobile Oriented Probe Data Technologies• Non-Infrastructure Oriented• Cellular Phone Based Monitoring• Fleet Based GPS Monitoring
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationElements of the RFP
Data Elements / Performance Requirements• Near real-time link travel speeds
o 1 mile maximum link size (revised to 3 miles)o 3 minute maximum reporting latency (revised to 10 minutes)o 1 minute reporting frequencyo +/- 5 mph from “actual” link speeds
• Incident detectiono Sudden speed fluctuationso 911 spikes
• Optional: highway work zone monitoring• Some overlap with existing infrastructure for evaluation
purposes
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationElements of the RFP
Systems Acceptance Test (SAT)• XML Data Frequency• System Time-Out• XML Schema Test• Speed Accuracy Test• Link Size Test• Travel Time Test• Documentation
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationElements of the RFP
30-Day Acceptance Testing• Independent Drive Tests• Control Room Map Observations• Frequency, Accuracy, Completeness
Flexible Contracting Options• Annual Service Fee• Start-Up Cost• 2 Year Contract, Renewable
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationContract Awards
AirSage• Cellular Phone Based Monitoring• I-90/94 Milwaukee-Madison – Interstate Plus Alternate
Routes• Monthly Payments After SAT
Inrix• Fleet-Based GPS Monitoring• I-43 / US 41 Milwaukee-Green Bay• Start-Up Payment + Monthly Payments After SAT
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data EvaluationPredefined Intercity Corridors
Above: I-90/94 Interstate with Alt. Routes (181 miles), Right: I-41 / US 43 (243 miles)
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
Procurement Process - Issues
RFP Selection and Contracting Process• TOPS recusal from RFP selection process due to potential
conflict of interest• Rejoined project for SAT and evaluation study
AirSage SAT• Performed two SATs (Sep. 2007, Feb. 2008)• Main issues:
o Link travel speedso Incident, weather (flooding) detection
• Need to refine / amend the performance requirementso Required +/- 8mph on 95% links based on 3-car drive test
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
Procurement Process – SAT
Project Team Roles• WisDOT – Project Leader• TransCore – Certification• TOPS Lab – Data Analysis
Data Analysis Tasks• Refining performance requirements• Making sure everyone was on the same page• Independent verification of the data (incidents, flooding, drive tests)• Reviewing raw data from probe data provider• Clearly defining next steps
TOPS Lab’s Role• Data analysis became primary issue in SAT• Occasionally communicated directly with probe data provider
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
Evaluation Study
Objectives• Evaluate performance of mobile probe data systems against RFP
requirements• Comparative analysis between two different technologies *• Two year study *
Focus• Does the probe data add value to the STOC?• Real-time link speeds on control room map• Real-time incident detection• Major weather events (flooding, snow)• Highway work zone conditions
Other• Incorporate probe data into ITS (detector data) archive
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
Evaluation Study - Continued
Status• SAT experience re-focused scope of evaluation study
o Incident, weather, and work zone detection, i.e., non-free flow conditionso Limited to one data provider
• Second year of evaluation study not funded• Final report under development
Issues• Incident detection
o Onseto Durationo Clearance
• Probe data (sampling methods)o Short-term events o Longer-term full freeway closure events
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
Lessons Learned
University as neutral partner• RFP selection process, SAT process, data archiving / systems evaluator
Annual fee vs. start-up cost payment options• AirSage experience
Clarifying performance requirements• AirSage experience
Early adoption• Inrix experience
Evaluation Study• Extended SAT vs. independent evaluation
Complex Process• Contracting, deployment and systems integration, archiving, evaluation
Wisconsin Traffic Operations and Safety Laboratory Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental EngineeringDepartment of Civil and Environmental Engineering
University of Wisconsin-MadisonUniversity of Wisconsin-Madison
WisDOT Probe Data Contact Information
Steven ParkerTOPS IT Program Manager
University of [email protected]
(608) 265-4921
Doug DembowskiSTOC Supervisor
Wisconsin Department of [email protected]
(414) 227-2149