1 / 19

Project Team Paul Worrlein Matt Steffan Josh English Azadeh Yazdani Brent Sullivan

Project Team Paul Worrlein Matt Steffan Josh English Azadeh Yazdani Brent Sullivan. Introduction. The Portland Streetcar runs on a 7 mile loop route connecting Northwest Portland, the Pearl District, Downtown, Portland State University and South Waterfront. Image courtesy of NextBus.

tracey
Télécharger la présentation

Project Team Paul Worrlein Matt Steffan Josh English Azadeh Yazdani Brent Sullivan

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Project Team Paul Worrlein Matt Steffan Josh English Azadeh Yazdani Brent Sullivan

  2. Introduction • The Portland Streetcar runs on a 7 mile loop route connecting Northwest Portland, the Pearl District, Downtown, Portland State University and South Waterfront.

  3. Image courtesy of NextBus

  4. NextBus • How accurate are the predictions? • NextBus claims the margin of error is less than one minute within five minutes of arrival • Within ten minutes of arrival, the margin of error is less than two minutes • These values were used as a basis for verification of arrival times

  5. Portland Streetcar Inc. • Streetcar headways are listed for three time blocks throughout day • Weekdays 9 am to 8pm 13 minute headway • All other hours 14-20 minute headway • These values were used as a basis of comparison for headways

  6. The issue • Passenger and Portland Streetcar Citizens Advisory Committee have expressed concern about the accuracy of arrival predictions displayed at streetcar stops

  7. Project goals • Collect sufficient data in order to provide a thorough analysis • Produce recommendation for Portland Streetcar Inc. regarding use of timing system for streetcar arrivals

  8. Methodology • Collect data at various stops along streetcar route North of Max line • Analyze/reduce data to confirm or refute accuracy claims of NextBus system

  9. Data Collection • Ideal conditions result in low deviation from expected arrival • Poor conditions result in large deviation from expected arrival

  10. Data Reduction • Compared predicted arrival times with actual arrival times • Found average discrepancies between actual and predicted arrival times • Looked at average values of headway between cars and distribution of headways throughout day

  11. Results

  12. Headway Results

  13. Headway Results

  14. Headway Results

  15. Observations • Weather • Unannounced street car arrivals • Traffic • Loading and unloading conditions • Problems with car door/ADA ramp extension • Route blockages

  16. Conclusion • Prediction of arrival times are within the margin of error claimed by NextBus • Observed headways confirmed those posted by Portland Streetcar Inc. • Problems with headway and arrival predictions were usually attributed to isolated uncontrollable events such as weather or emergency vehicles blocking streets.

  17. Recommendations • Portland Streetcar Inc. could petition NextBus to look into refining the prediction algorithm for delays from unpredictable events such as accidents and emergencies • System map showing current stop location and location of next streetcar, similar to NextBus website

  18. Proposed interactive streetcar display Image courtesy of NextBus

More Related