1. Bus Lane with Intermittent Priority Graham Carey PE., AICP BRT Project Engineer, Lane Transit District, Eugene, Oregon QUALITY TRANSIT -- NOW

2. Bus Lane with Intermittent Priority Concept BLIMP BLIP Dynamic Freeway Moving Bus lane Virtual Bus lane Intermittent Bus lane Adaptive Bus lane…….

3. Exclusive bus lane provided when bus is present BLIMP lane controlled with Bus Lane with Intermittent Priority Concept Overhead Lane-Use Control Signals In-Pavement Lights

4. BLIP Operations 1.All lanes open to traffic prior to bus arriving. 2.Approaching bus is detected. 3.Overhead lane-use control signals activate. 4.In-pavement lights activate. 5.Traffic begins exiting BLIP lane. 6.Bus enters cleared BLIP lane. 7.As bus clears a block, lane reopens. 8.This process continues until bus exits BLIP lane. 9.BLIP lane remains open until next bus is detected.

5. Features BLIMP Concept Bus detection Signal BLIMP lane BLIMP Start BLIMP End Lane-use control signals = Lane open to general purpose traffic = Lane open to bus only In-Pavement Lights

6. All lanes open BLIMP Concept BLIMP Start BLIMP End

7. Bus approaches BLIMP lane BLIMP Concept Approaching bus detected Lane-use control signals change In-pavement lights flash BLIMP Start BLIMP End

8. General purpose traffic exits BLIMP lane BLIMP Concept BLIMP Start BLIMP End

9. Bus enters cleared BLIMP lane BLIMP Concept BLIMP Start BLIMP End

10. Bus travels along BLIMP lane BLIMP Concept BLIMP Start BLIMP End Lane reopens to general purpose traffic after bus travels through each block

11. Where has it been applied University Avenue, Lisbon, Portugal Toorak Avenue, Melbourne, Australia

12. Dynamic Freeway, Melbourne, AU

13. University Avenue, Lisbon, Portugal

14. Lisbon

15. Corridor Modeled

18. Base Scenarios Tested Mixed-flow, no special treatment Transit signal priority BLIMP lane Exclusive bus lane

19. Sensitivity Analyses Driveway egress control Left-hand BLIMP lane Lagging queue jump Increased traffic volume Reduced driveway volume

21. Preliminary Results

22. Key Benefits Bus travel time reduced Bus schedule reliability improved Exclusive bus lane provided only when needed! Strategy fits within existing right-of-way Existing property access maintained

23. Key Challenges Public information/education campaign is required Requires driver compliance Enforcement may be needed

24. Conclusion Successfully modeled BLIMP lane operations BLIMP lane provides benefit of exclusive lane without cost and impact Applicability where right-of-way is limited Balance can be found between transit benefits + traffic impacts Need for real-world pilot application