Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental Engineering University of Wisconsin-Madison The Wisconsin DOT Mobile Probe Data Evaluation Steven T. Parker, Ph.D. Traffic Operations and Safety (TOPS) Laboratory University of Wisconsin-Madison USDOT Probe Data Workshop II Philadelphia Marriott Downtown September 10-11, 2009

Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental Engineering University 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Project 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Project 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Timeline  July 2006 – RFI Issued  August 2006 – RFI Materials Due, One-on-One Meetings  September 2006 – WisDOT RFP Issued  October 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Elements 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Elements 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Elements 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Elements 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Elements 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 frequency o +/- 5 mph from “actual” link speeds Incident detection o Sudden speed fluctuations o 911 spikes Optional: highway work zone monitoring Some overlap with existing infrastructure for evaluation purposes

Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Elements 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Elements 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Contract 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Evaluation Predefined 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 Department of Civil and Environmental Engineering University 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 speeds o Incident, weather (flooding) detection Need to refine / amend the performance requirements o Required +/- 8mph on 95% links based on 3-car drive test

Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental Engineering University 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 Department of Civil and Environmental Engineering University 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 Department of Civil and Environmental Engineering University 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 conditions o Limited to one data provider Second year of evaluation study not funded Final report under development  Issues Incident detection o Onset o Duration o Clearance Probe data (sampling methods) o Short-term events o Longer-term full freeway closure events

Wisconsin Traffic Operations and Safety Laboratory Department of Civil and Environmental Engineering University 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 Department of Civil and Environmental Engineering University of Wisconsin-Madison WisDOT Probe Data Contact Information Steven Parker TOPS IT Program Manager University of Wisconsin-Madison (608) Doug Dembowski STOC Supervisor Wisconsin Department of Transportation (414)