S203: The Caltrans Performance Measurement System (PeMS) An Introduction to PeMS and a Demonstration of its Multimodal Tools

Transcription

1 S203: The Caltrans () An Introduction to and a Demonstration of its Multimodal Tools Presented By: Ellison Alegre, San Diego Association of Governments Jane Berner, Caltrans APA s 2012 National Planning Conference

2 About Us Jane Berner Senior Transportation Planner at Caltrans responsible for user support and application development activities. Contact information: (916) , Ellison Alegre Associate Regional Planner at SANDAG Project Manager in Mobility ITS Division Responsible for on-going transportation performance monitoring activities in San Diego region Contact information: (619) ,

3 Learning Objectives Learn the basics about Understand what data are kept in Learn how to access the data you want Know about the newer, multimodal aspects of that are under development

4 What is? A website that anyone can access: A centralized traffic data warehouse Near real-time and historical data Mainly collected through automated detection Over 34,000 detectors deployed on urban freeways throughout California A data visualization and analysis tool A system that enables system monitoring and evaluation

5 History Development began in late 1990 s Caltrans was deploying many real-time, automated detectors to provide data to the Transportation Management Centers (TMCs) Recognized the need to store all of the data in a centralized location Partnership between Caltrans and the University of California, Berkeley put into production at Caltrans a few years ago

6 What does a detector do? Measures the number of vehicles that pass over it (volume/flow) Measures occupancy (the amount of time the detector is on, or sensing a vehicle) Sometimes measures speed Reports data on a cycle to a controller every 30 seconds

7 Types of Detectors Side-fire radar Loop detectors in the road A magnetometer

8 How is used? Provides data for the Department s annual congestion report, the Mobility Report (formerly HICOMP) Monitor detector health status Perform pre- and post- lane closure analysis Evaluate the performance of Managed Lanes (HOV, HOT) Produce Corridor Management Plans and Transportation Concept Reports Traffic Studies and Project Planning

9 Data in More than data from real-time, automated detectors Traffic Census data Non-real-time volume data from all over the state Weigh-in-Motion (WIM) and vehicle classification data Approximately 100 locations Electronic Toll Collection (ETC) tag data Provides travel times in the San Francisco Bay Area Incident data Real-time and archived California Highway Patrol data Lane Closure Real-time and archived lane closure information

10 New Data Sets in Through a partnership with SANDAG, two new modules are begin developed in Arterial (A-) Transit (T-) Original idea was that would not be limited to freeway data For planning and operations purposes, want to know how all facilities and modes are performing

11 Recent Enhancements Arterial (A-) Pilot on Telegraph Canyon Road in Chula Vista, CA Deployed magnetometers along corridor Transit (T-) Pilot with San Diego Metropolitan Transit (MTS) and North County Transit District Route and Schedule information for all buses Automatic Vehicle Location (AVL) and Automatic Passenger Count (APC) data

12 Demonstrations

13 Accessing on the Internet Login with your username and password If you don t have an account, you can apply for one. It is usually instantaneous but can take up to 2 business days.

14 Homepage Clicking on the logo always takes you back to this homepage Click on your username to view and change your account settings Return to your homepage (specify under your account settings by clicking on your username) Jump to Maps Real-Time for current conditions, for data visualization, and Inventory to find detector locations Dashboards for high-level information; click more links for additional details

15 More Homepage Navigational Tips Report tabs Report Finder a short cut for finding traffic data -wide help. General topics not specific to a single page (e.g., Calculations) Important announcements Jump to a District Dashboard, or to county, city or freeway-specific pages

16 Methods for finding data in Through map navigation Inventory Map to find locations where data is available Real-Time Map for current traffic conditions Map to visualize information like bottleneck locations and detector health By searching under Facilities & Devices By using the Report Finder

17 Finding Data for a Particular Vehicle Detector Station (VDS) on a Freeway From the Homepage, click on the Inventory link under the California map image. Once on the Inventory Map, recenter the map to District 7 (L.A.), and zoom in so that the Mainline VDS icons (in red) are visible.

18 Select a VDS to Analyze Zoom in to the I-10 freeway and click on the Mainline VDS icon just east of Bundy Drive. Clicking on the icon will bring up a pop-up window with details about this detector station. Click on Aggregates to go to data for this station.

19 View data for this VDS Clicking on Aggregates from the Inventory Map pop-up window takes you to the > Aggregates > Time Series report, where data like flow and speed can be viewed.

20 Data can be Viewed in Table Form Besides looking at the data in plot form, you can click on View Table to see it in table form. The data can also be downloaded as text or into a spreadsheet.

21 Viewing Data for a Section of Freeway, rather than a Single Point To view data for a section of freeway, return to the Homepage and Jump to District 7.

22 See which Freeways have Detection From the District 7 homepage, click on Facilities & Devices > Freeways.

23 Choose I-110 North from the List of Freeways Click on the #VDSs column of the I110-N row to view the detector stations on this freeway.

24 Viewing data for I-110 N Choose the > Spatial Analysis > Time of Day Contours report.

25 Time of Day Contours This report shows a speed contour plot of the I-110 N freeway over a select date range.

26 Another Fun Visualization Tool is the Animation Report Select > Modeling > Animation to see a unique visualization of flow, speed, bottlenecks, and incidents on a freeway segment.

27 Animation Click on Reload Animation once you have selected the date and time range you want. Once reloaded, click on the play arrow at the bottom of the page.

28 Route Demonstration: Average Freeway Travel Time Select Facilities & Devices > Routes > Listing to select a route. Then select > Travel Time > Departure Time Series to see a report of travel times for the chosen freeway corridor over a given time period.

29 Transit Location of Bus Stops On the Inventory Map, select Transit Stops.

30 Transit (T-) Demonstration: Hourly On-Time for a Week Select Facilities & Devices > Transit Agencies and select MTS. Then select > Aggregates > Time Series to see an hourly report of system-wide on-time performance for a given week.

31 Arterial Pilot Location in Chula Vista On the Inventory Map, view Arterials Detectors.

32 Arterial (A-) Demonstration: Arterial Travel Time by Time of Day for a Month Select Facilities & Devices > Routes > Listing to select an arterial route. Then select > Travel Time > Time of Day to see a report of average hourly travel time for the chosen arterial corridor over a given time period..

33 Multimodal Application: Average Monthly Freeway/Arterial Travel Time Select Facilities & Devices > Routes > Listing to select an mixed route. Then select > Travel Time > Departure Time Series to see a report of average travel time during the PM Peak Period for the chosen freeway/arterial corridor over a given time period..

34 Wrap-Up Questions? Comments? Spend some time exploring on your own! Thank you!