NJ Transit - Transit Signal Priority Intersection Evaluation Methodology A sketch planning approach to TSP prioritization

Transcription

1 NJ Transit - Transit Signal Priority Intersection Evaluation Methodology A sketch planning approach to TSP prioritization presented to NJDOT Research Showcase presented by Jennifer Strasser Cambridge Systematics, Inc. October 27, 20 Transportation leadership you can trust.

2 Agenda Background Overview of TSP methodology Overview of corridor case studies

3 Background Goal: Create Sketch Planning Tool that evaluates suitability of TSP at the intersection level Utilize best practices from other operating TSP deployments Ensure approach is open and can easily be updated No Black Box 2

4 Transit Agencies Interviewed Portland - TriMet Vancouver - Translink Los Angeles LACMTA Chicago RTA, CTA, Pace Oakland AC Transit Toronto TTC 3 New York City MTA NYC Transit

5 Why Agencies Were Selected Representative cross section of TSP approaches Centralized vs. distributed Scale Analysis approach Geographic distribution Implementation experience

6 Interview Topics Intersection selection Screening criteria utilized Analysis tools TSP strategies Program status Agency coordination issues Before/after studies Lessons learned 5

7 Main Principles TSP is best for schedule reliability TSP works best with far-side stops TSP operations should be invisible to bus operator and traffic Green extension, red truncation Queue jump where feasible and appropriate Distributed architecture offers more flexibility across jurisdictions TSP detection technology is minor consideration 6

8 Success Stories of Working with Traffic Engineers Portland Study quantified person delay vs. vehicle delay to sell to DOT Los Angeles System does not fail, even though there are holes in the system Bay Area Build interconnected signal corridor to create traffic benefits, EVP, TSP If you have to quantify the benefits microsimulation is the tool Beverly Hills, CA Negotiate cycle recovery policy and threshold of lateness 7

9 TSP Intersection Evaluation Scoring Approach Intersection Performance Bus Stop Characteristics Signal Controller Type Intersection Complexity Actuated Signal Intersection Crossing Transit Route Total Score LOS A Existing far side, mid-block, or no stop No upgrade required for TSP operation Four Legs No No major crossing transit routes 3 TSP More Appropriate LOS B/C Existing near side and relocation feasible Software upgrade needed only Crossing route with peak headways >2x BRT LOS D/E Existing near side and queue jump feasible Detection, software upgrades needed Minor crossing route with peak headways 2x BRT TSP Less Appropriate LOS F Existing near side and neither feasible Complete replacement required for TSP operation > Four Legs Yes Crossing route with peak headways x BRT 30% 20% 5% 5% 20% 20% Weights

10 Corridors Case Studies. Route 8 Turnpike to GSP Middlesex County 2. JFK South Journal Square to Bayonne City Line Hudson County 3. Springfield Market Street to 3 rd Street Essex County Transit Signal Priority NJ Systems Application and Technology Investigation Corridor Case Studies

11 Corridor Characteristics 3. miles 52 intersections Pamrapo Ave. Journal Square Transit Signal Priority NJ Systems Application and Technology Investigation JFK South - Journal Square to Bayonne Hudson County

12 JFK Blvd at Communipaw Ave TSP Intersection Scoring John F. Kennedy Blvd. at Communipaw Ave. Transit Signal Priority NJ Systems Application and Technology Investigation JFK South - Journal Square to Bayonne Hudson County

13 TSP Intersection Scoring John F Kennedy Blvd at Communipaw Ave. 3 Intersection Performance Bus Stop Characteristics Signal Controller Type Intersection Complexity Actuated Signal Intersection 2 Crossing Transit Route Total Score = 3.5 Transit Signal Priority NJ Systems Application and Technology Investigation JFK South - Journal Square to Bayonne Hudson County

14 TSP More Appropriate TSP Less Appropriate TSP Intersection Scoring Overall Scoring 98% = TSP More Appropriate 6% intersections have major crossing transit routes Average Intersection Score Along Corridor = 3.66 Sip Avenue Assumed all controllers would need to be replaced Transit Signal Priority NJ Systems Application and Technology Investigation JFK South - Journal Square to Bayonne Hudson County

15 What are the next steps? Apply scoring process to all corridors identified for BRT or BRT-like service Set priorities Early look at cost implications Apply across entire NJ Transit system Statewide perspective Select new corridors Create simple and secure web-based tool Repository for all results Conduct analyses and see impacts in real time Share results to encourage acceptance and buy-in Detailed Analysis and Design Simulation tools

16 Thank you! For additional information, please contact: Chris Hedden, CS Project Manager (50)