AVL DMS Automation & BlueTooth for Arterial Travel Time March 27, 2013

Transcription

1 AVL DMS Automation & BlueTooth for Arterial Travel Time March 27, 2013 To create a Master Plan that will guide the expansion of an efficient, scalable, transparent, and dynamic traffic signal system

2 SCorE WZARD Project Background SCorE Safe Corridor Enhancements Program Work Zone Accident Reduction Deployment (WZARD) 2

3 Project Vicinity 3

4 Goals and Objectives: Traffic Incident Management Improve I-94 corridor safety during work zone operations Improve safety for traffic incidents and/or traffic enforcement activities Reduce the occurrence of snow plow/vehicle crashes Reduce the occurrence of secondary incidents 4

5 Goals and Objectives (continued) : Public Communications/Traveler Information: Provide real-time traveler information along the I-94 corridor Provide travelers with advance warning of maintenance operations to DMS upstream Provide CCTV images to RTMC, District 3 Operations and State Patrol 5

6 SCorE WZARD Project Background Project Stakeholders: MnDOT District 3 Operations and Maintenance MnDOT Regional Traffic Management Center (RTMC) MnDOT Central Office Maintenance MnDOT Office of Traffic, Safety and Technology (OTST) MnDOT Office of Electronic Communications Mn/ROAD Federal Highway Administration Minnesota State Patrol St. Cloud TOCC Local Units of Government along the I-94 Corridor Traffic Engineers (City/County/State) Local Law Enforcement Agencies Minnesota Trucking Association Drivers/General Public 6

7 I-94 Corridor Pilot 7

8 WZARD Project Schedule Task 1: Project Management Task 2: Develop Detailed Concept of Operations (2011) Task 3: Develop System Requirements (2011) Task 4: Develop Detailed System Design (Summer 2011) Task 5: System Acceptance Testing (Jan-Feb 2012) Task 6: System Deployment (January 2012) Task 7: Operations and Maintenance Plan (April 2012) Task 8: WZARD Final Report (May 2012) 8

9 WZARD Concept of Operations Scenario/Use Cases developed for the following: Snow plows Traveling public Law enforcement Other operators on the corridor (i.e., private tow companies) TMC/TOCC Operator Seasonal operations 9

10 WZARD Detailed Requirements Operational Requirements Dynamic Message Sign (DMS) message posting and control via IRIS Operational control performed at District 3B Dispatch - St. Cloud Functional Requirements The WZARD system will display predetermined messages to indicate the presence of snow and ice operations (maintenance vehicles) Activation of automatic messages based on MnDOT AVL-equipped maintenance vehicle location, speed, and direction Without Plow Operator or TOCC (State Patrol) Operator Involvement. 10

11 Typical Integrated Snow Plow 11

12 WZARD Detailed System Design WZARD Geofencing Concept: GPS-defined polygons that detect vehicle presence using AVL/GPS data Sample Parameters for Sign Activation of Snow Plow on Roadway Truck Location within geofence boundaries Truck Speed (15 s t 45 mph) Bearing (Eastbound) Inclement Weather (MDSS, RWIS, AVL/GPS data, etc.) 12

13 WZARD Detailed System Design WZARD Type and Content SNOW PLOW AHEAD USE CAUTION SNOW PLOW AHEAD AVE SPEED 25 MPH 13

14 WZARD Detailed System Design 14

15 WZARD Detailed System Design 15

16 Future Deployment Discussing Enhancements to the system: Summer Maintenance Activities During Reconstruction, require the private contractor to equip fleet with AVL to track when workers are present Require AVL interface to ATMS software 16

17 Iteris BlueTooth Technology From Pilot to Product To create a Master Plan that will guide the expansion of an efficient, scalable, transparent, and dynamic traffic signal system

18 Project Background Iteris was selected for Minnesota Department of Transportation (MnDOT) ITS Innovative Idea Program project that measures travel times on an arterial corridor in Hennepin County, MN using Bluetooth technology Provide MnDOT with comparative data to determine: Can Bluetooth Readers provider accurate arterial travel time Information?

19 Why are we monitoring arterial Travel Times? Measuring arterial travel times is beneficial for improving: Signal timings Arterial planning & planned improvements Traveler information Travel time is the foremost indicator of the quality of traffic flow currently in use Travel time is intuitive and easy to understand

20 MAP-21 Moving Ahead for Progress in the 21 st Century July 2012 Establishes a performance based program Program Goals Improve safety Maintain infrastructure conditions Reduce congestion Improve efficiency Measures of Effectiveness (MOEs) DATA! Performance Measurement

21 Project Location Six signalized intersections on CSAH 81 corridor in Hennepin County, MN ADT 10,000 25,000 vehicles

22 Technology Deployment Spacing along arterial: 1.7 to 3 miles between locations 6 Locations, 8 Readers Each intersection location: Bluetooth Reader GPS receiver 3G modem for backhaul At corridor end locations: One side communicates to other side via 5 Ghz Wifi network

23 Preliminary Field Tests Conducted field survey Capture rate of BT signals 36 th side 36 th median 42 nd Bass Lake 63 rd Omni 6.7% 11.4% 7.7% 3% 5.4% Availability of 3G signal (Sprint) All locations: download 500kbps 1.5Mbps, upload 200 Kbps 550 kbps WiFi interference level Detected WiFi signals with 25%-39% signal strength Documented floating car travel times for future comparison Connection to the web portal

24 Intersection Layout

25 StreetWAVE Integrated with 3G, WiFi, DSRC, GPS, Bluetooth in a single platform 24v dc (standard) Single radio will support diverse applications simultaneously One-way, 2-way, individual and broadcast communications Ruggedized NEMA enclosures to fit all weather needs

26 StreetVIEW Portal Provides a map with device locations and their operational status Raw data is stored unfiltered in relational database Statistics Display Number of BT reads at a location in specific interval Table display of travel times for user-definable links Scatter plot of travel times

27 Web Portal

28 Travel Times

29 Set-up & Filtering Initial configuration easy for the agency to deploy system. No need to do travel time runs to deploy along a corridor. Use Posted Speed Limit Traditional Travel Time runs are needed for verification Filtering algorithm needs to be smart enough to allow average speed to approach 0 mph. Look at previous (1 min.) interval average speed, if it is declining then drop the lower limit of the filtering.

30 Addresses Matched to Travel Time Runs Tracked the unique MAC address through the database to Bluetooth enabled laptop running PC Travel for travel time runs completed.

31 Travel Time Runs bound Bluetooth Data

32 Trend Analysis

33 Lessons Learned With calibration and verification, Bluetooth readers can provide accurate travel time information for corridors with ADT greater than 15,000. Don t need two readers at the end of the corridor. Antenna coverage is not an issue. Reduce installation costs - No bucket truck and mesh with typical traffic signal cabinet. Limited status reporting and notification Location for deployment should consider future data collection and reduction. O-D data

34 Adam Lyons Software/Product Sales Manager

35 Vantage Velocity Installation Traffic Cabinet Installation Rack or Shelf-Mount Communication Options Ethernet Cellular Modem Low Bandwidth Radio Others. Antenna is easily integrated into existing cabinets Omni-Directional 300 foot radius

36 Alternative Installations AC Standalone Solar Powered

37 West Houston Arterial Deployment 14 Arterials 160+ directional miles of roadway (2 to 8 lane arterials) 50 Field Units in the grid network

38 Virginia DOT Reach the Beach

39 City of Arcadia, CA

40 Vantage Velocity Differentiators Rack-Mount AND Shelf-Mount Systems Asynchronous I/O Advanced filtering settings Powerful and Robust Host Software Web-based GUI Field Unit Performance Origin-Destination Matrix notification of field unit outage Complete ownership of data by operating agency

41 Vantage Velocity Questions and Comments