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Suggested Citation:"Appendix A - Survey." National Academies of Sciences, Engineering, and Medicine. 2021. Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation. Washington, DC: The National Academies Press. doi: 10.17226/26094.
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Suggested Citation:"Appendix A - Survey." National Academies of Sciences, Engineering, and Medicine. 2021. Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation. Washington, DC: The National Academies Press. doi: 10.17226/26094.
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Suggested Citation:"Appendix A - Survey." National Academies of Sciences, Engineering, and Medicine. 2021. Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation. Washington, DC: The National Academies Press. doi: 10.17226/26094.
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Suggested Citation:"Appendix A - Survey." National Academies of Sciences, Engineering, and Medicine. 2021. Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation. Washington, DC: The National Academies Press. doi: 10.17226/26094.
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Suggested Citation:"Appendix A - Survey." National Academies of Sciences, Engineering, and Medicine. 2021. Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation. Washington, DC: The National Academies Press. doi: 10.17226/26094.
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Suggested Citation:"Appendix A - Survey." National Academies of Sciences, Engineering, and Medicine. 2021. Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation. Washington, DC: The National Academies Press. doi: 10.17226/26094.
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Suggested Citation:"Appendix A - Survey." National Academies of Sciences, Engineering, and Medicine. 2021. Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation. Washington, DC: The National Academies Press. doi: 10.17226/26094.
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Page 81

Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

75 A P P E N D I X A Survey The National Cooperative Highway Research Program (NCHRP) is synthesizing state DOT use of Vehicle Probe and Cellular GPS data for Monitoring and Planning activities. The project, NCHRP 20-05/Task 51- 06, will help educate DOTs on the state of the practice and include several case-studies on how agencies are making use of this data to inform their operations and planning activities. We have selected you to take this important survey because of your leadership in the DOT, and because we believe you are likely to know the right people within your organization that could help you compile the most complete response. Below is a survey that is intended to help us learn more about current practices and uses of Probe and GPS data in your organization. The survey is short and should take about 15 minutes to complete. Before you begin the survey, please take some time to consult with others in your organization who may be using GPS and other cellular probe data. In doing so, the survey will take less time and help us synthesize the most complete information for the final report. You can also download a copy of the survey here. If your organization is already substantially invested in using vehicle probe and cellular GPS data, we may, with your permission, follow-up with limited additional questions for a possible case study, providing an opportunity to showcase you and your colleagues’ practices to a nationwide community of transportation professionals. If you have any questions or comments regarding this survey, please contact me using my information below. Regards, Michael L. Pack, Principal Investigator University of Maryland, CATT Lab PackML@umd.edu 240.676.4060

76 Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation 1) Which of the following private sector cellular and/or GPS-collected probe data does your agency currently use/purchase or plan to in the near future?(check all that apply) Currently use/purchase Planning to use/purchase in the near future Do not use/purchase and have no plans to do so Speed Data (real-time or historic average speed on one or more road segments) Origin-Destination Data (Data that describes the origin and destination of a trip) Route/Trajectory Data (data that describes the path and route of a trip from an origin to a destination) Location Based Services (data obtained from 3rd party apps on smartphones that periodically report the location of users) 2) Are there any other private sector cellular and/or GPS-collected probe data not listed above that your agency currently uses/purchases or plans to in the near future? If so, please describe the data below.

Survey 77 AirSage ATRI Cuebiq Google HERE Technologies Inc. INRIX Lyft NPMRDS (provided by FHWA for free) StreetLight TomTom Uber Waze Other (Please explain): Not applicable 4) In what general areas does your agency use these data? (check all that apply) Planning Public Relations/Media Real-Time Operations Performance Management Maintenance Asset Management Research Other (please explain): None of the above 5) For what specific purposes does your agency use cellular and/or GPS-collected probe data? (check all that apply) P Adherence to evacuation notices, and monitoring of movements Advertising/Billboard lacement/Mailers After Action Incident Reviews Analysis of quick clearance legislation & towing and recovery practices Arrival on Red/Green Analysis Arterial Performance Measures ATSPM (Automated Traffic Signal Performance Measures) Automatically attributing congestion to various sources (signals, weather, construction, events, geometrics, etc.) Before & After Studies Bottleneck Ranking Corridor Study Dangerous Slowdown Detection Dynamic Tolling Event Detection Freight Movement Analysis Fuel and Charging Station Location Development Holiday Travel Forecasts 3) From what companies does your organization purchase or acquire these data either for current use or past projects?(check all that apply)

78 Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation Justifying Operations Funding Justifying Transit Spending Measuring economic impacts of project, information campaigns, etc. Media Engagement Migration Analysis Mileage Based User Fees Mobility as a Service Model Calibration Multi-Modal Trip Analysis (short or long-duration trips) Operations Benefit-Cost Analysis Origin-Destination Analytics Project Assessment Summary Project Prioritization/Scoring Project Selection Project Study Public Participation Meetings Real-Time Work Zone Management Reliability Measurement Responding to Citizen Complaints Select-Link Analysis Signal Analytics & Retiming Significant Event Analysis (bridge collapse, commuter train derailment, eclipse traffic impacts, etc.) Situational Awareness (evacuation monitoring, winter weather operations, daily operations, etc.) Systems Performance Reporting Transportation Energy Analytics (fuel consumption, emissions, etc.) Travel Time Studies Travel Times on DMS Traveler Information Trip Analytics Trip Incentivization Turning Movement Analysis Updating the CMP User Delay Cost Analysis Variable Tolling Volume Estimation What-if scenario analysis for development, counter- measures, lane closures, CAVs, etc. Work Zone Impact/Audits Other (please explain): None of the above 6) If your agency isn't currently using GPS/cellular data, what are the reasons? (check all that apply) Cost/lack of budget Concerns about quality and/or accuracy Don’t know/understand/see the benefit(s) Don’t have a need The data are too big and/or we don’t know how to handle it.

Survey 79 Lack of leadership support Lack of control over data collection process Perceived concerns over privacy Too much effort required to integrate data Other - (Please explain): Not applicable 7) Does your agency perform any of the following? (check all that apply) Process and analyze raw data directly (using in-house staff) Access data through a hosted analytics or visualization platform like iPeMS, RITIS, Pay a consultant to analyze the data for you Not applicable 8) What tools does your agency use to analyze the data whether in-house or purchased (SaS, R, MatLab, iPeMS, RITIS, StreetLight, Excel, etc.) 9) How did your agency acquire the data? (check all that apply) Through issuing an RFP Shared by a partner agency Sole source procurement Subscription StreetLight, etc. Inter-governmental agreement with a university or other state

80 Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation Lumped together with the procurement or operations & maintenance of an ATMS, Traveler Information System, or other system purchase Through an on-call contractor Through a non-profit agency or academic institution (like the I-95 Corridor Coalition or a As part of a larger corridor study or project Other - Write In Not applicable 10) Is your agency allowed to share the raw data or analytics applications that you've purchased with MPOs Consultants working for you Local DOTs/DPWs University Partners Public Safety / First Responders Transit Agencies The general public Media Other - Write In university) Not applicable 11) Are there any major decisions that your agency has made as a result of the use of probe data? If so, please explain or provide examples below. If not, then please skip this question. 12) May we contact you/interview your agency further to help clarify any questions or consider your agency for a potential use case write-up? Yes No

Survey 81 13) Please provide your contact information should we need to reach you to clarify any responses or ask follow-up questions. First Name: Last Name: Agency: Email Address: Phone Number: Title: Street Address: Apt/Suite/Office: City: State: Zip: Thank You! Thank you for taking our survey. Your response is very important to us. If you have any specific use cases related to the use of GPS-sourced data from which other states or agencies may benefit from hearing about, please contact Michael Pack @ PackML@umd.edu or 240.676.4060 Email action: PackML@umd.edu To: Michael (PackML@umd.edu) From: SurveyGizmo (noreply@surveygizmo.com) Subject: New Response Notification

Next: Appendix B - Survey Responses »
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Over the last decade, state departments of transportation (DOTs) have begun to use vehicle probe and cellular GPS data for a variety of purposes, including real-time traffic and incident monitoring, highway condition, and travel demand management. DOTs are also using vehicle probe and cellular GPS data to inform system planning and investment decisions.

The TRB National Cooperative Highway Research Program's NCHRP Synthesis 561: Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation documents how DOTs are applying vehicle probe and cellular GPS data for planning and real-time traffic and incident monitoring and communication.

In December 2021, an erratum was issued.

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