Traffic Solutions 2pi Presentation

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Two Phase At-Grade Enhanced Intersection "2pi" System created by: Belisario Hernandez Romo P.E., Ph.D. P.T.O.E., Ph. 858-3668128 All directional traffic movements plus pedestrian crossings are negotiated at the intersection in two phases per semaphore controlled cycle. Capacity is increased at least 200%

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Traffic Solutions 2pi Presentation

  1. 1. Two Phase Intersection Option<br />Two Phase Enhanced At-Grade Intersection System (2PI)<br /><ul><li>Alternative intersection concept
  2. 2. Higher capacity
  3. 3. Metropolitan Mobility Technologies Corp (MetTra)</li></li></ul><li>Interstate 15 Bus Rapid Transit<br />Two Phase Intersections – The Concept<br /><ul><li>Divide the intersection
  4. 4. Advance left turn crossover
  5. 5. Eliminate left turn conflicts at main intersection</li></ul>Main Intersection<br />Advance Intersection<br />
  6. 6. Interstate 15 Bus Rapid Transit<br />Two Phase Intersections – The Concept<br />Main Intersection<br />
  7. 7. Interstate 15 Bus Rapid Transit<br />Two Phase Intersection – How does it work?<br />
  8. 8. Interstate 15 Bus Rapid Transit<br />Conventional Intersections vs. 2PI<br />Conventional<br /><ul><li>4-6 lanes flowing
  9. 9. More red time
  10. 10. Limited capacity</li></ul>2PI System<br /><ul><li>6-10 lanes flowing
  11. 11. More green time
  12. 12. Much more capacity!</li></ul>3<br />1<br />4<br />2<br />2<br />1<br />
  13. 13. Interstate 15 Bus Rapid Transit<br />2PI – Case History (Variations)<br />Similar cases in United States<br /><ul><li>“Detroit Left”
  14. 14. Midwest
  15. 15. Other variations
  16. 16. Left turn separation</li></ul>2PI variation completed in 2006 on Airline Road in Baton Rouge, Louisiana<br />NOTE: In 2002, 2PI concept received AASHTO’s "Francis B. Francois Award" in recognition of its contribution to transportation <br />Detroit Left (Indirect Left Turn)<br />
  17. 17. PERSON<br />PERSON<br />PERSON<br />B<br />A<br />C<br />2 Phase Intersection<br />Three typical crossing examples.<br />Click page down button on keyboard when symbol below appears.<br /><br />
  18. 18. PERSON<br />A<br />wishes to cross from here <br /> to here.<br />It will take two phases<br /><br />
  19. 19. PERSON<br />A<br />PHASE 1<br /><br />
  20. 20. PERSON<br />A<br />PHASE 2<br /><br />
  21. 21. PERSON<br />B<br />wishes to cross from here <br />to here <br />It will take two phases<br /><br />
  22. 22. PERSON<br />B<br />PHASE 1<br /><br />
  23. 23. PERSON<br />B<br />PHASE 2<br /><br />
  24. 24. PERSON<br />C<br />wishes to cross from here <br /> to here.<br />It will take three phases<br /><br />
  25. 25. PERSON<br />C<br />Phase 1<br /><br />
  26. 26. PERSON<br />C<br />Phase 2<br /><br />
  27. 27. PERSON<br />C<br />Phase 3<br /><br />
  28. 28. PERSON<br />PERSON<br />PERSON<br />B<br />A<br />C<br />2 Phase Intersection<br />Three typical crossing examples animated simultaneously.<br /><br />
  29. 29. Phase 1<br /><br />
  30. 30. Phase 2<br /><br />
  31. 31. Phase 3<br />End<br />
  32. 32. Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Details<br />
  33. 33. Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Project Investigation<br />Reagan Road West<br /><ul><li>West of Camino Ruiz
  34. 34. Commercial area</li></li></ul><li>Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Project Investigation<br />Camino Ruiz<br /><ul><li>Third most congested intersection along Mira Mesa Boulevard</li></li></ul><li>Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Project Investigation<br />Reagan Rd East (New Salem St)<br /><ul><li>East of Camino Ruiz
  35. 35. Residential area
  36. 36. Near Mira Mesa High School</li></li></ul><li>Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Project Investigation<br />Black Mountain Road<br /><ul><li>Most congested intersection
  37. 37. Forecast (year 2030):
  38. 38. 7,573 vehicles per hour (AM)
  39. 39. 9,201 vehicles per hour (PM)
  40. 40. Along DAR Access Route</li></li></ul><li>Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Project Investigation<br />Westview Parkway<br /><ul><li>Congested major intersection
  41. 41. Commercial Area
  42. 42. West of I-15</li></li></ul><li>Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Project Investigation<br />I-15 Ramps<br /><ul><li>Heavy Traffic
  43. 43. Ramp Meters</li></li></ul><li>Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Project Investigation<br />Scripps Ranch Blvd<br /><ul><li>Close proximity to Caltrans right-of-way
  44. 44. T-intersection
  45. 45. Non-standard</li></li></ul><li>Mira Mesa Boulevard: Two Phase Enhanced At-Grade Intersection<br />2PI Level of Service Data<br />LOS Improved<br />

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