its georgia
play

ITS Georgia Kyle Mote GDOT Office of Planning June 27, 2013 - PowerPoint PPT Presentation

ITS Georgia Kyle Mote GDOT Office of Planning June 27, 2013 Agenda 2009 Managed Lane System Plan overview Current activities: Managed Lane Implementation Plan Lessons learned and emerging findings Next steps 2009 Atlanta


  1. ITS Georgia Kyle Mote GDOT Office of Planning June 27, 2013

  2. Agenda • 2009 Managed Lane System Plan overview • Current activities: Managed Lane Implementation Plan • Lessons learned and emerging findings • Next steps

  3. 2009 Atlanta Regional Managed Lane System Plan (MLSP) - Overview • First regional managed lanes plan in the country • In 2009, there were no Priced Managed Lanes in the Atlanta region (only HOV lanes) • Identified $16 Billion in MLs • Assumed $9 Billion could be delivered via PPP • $5.9 Billion programmed in current Atlanta MPO Plan

  4. 2009 Managed Lane System Plan Goals • Protect mobility with all new capacity • Maximize person/vehicle throughput • Minimize environmental impacts • Provide a financially feasible system • Design and maintain a flexible infrastructure network, for varying lane management

  5. Managed Lane Corridors Currently in Operation or in Development (Priced & HOV)

  6. Existing & Planned Priced Managed Lanes • Open to traffic: – I-85 North Express Lanes (16 miles) • HOV2+ to HOT3+ conversion in 2011 • 250,000 transponders issued • Under Development: – Northwest Corridor (I-75/I-575 North) Express Lanes • ROD issued May 2013 – I-75 South Express Lanes • Expect FONSI, summer 2013 – I-85 North Extension • Construction currently planned for FY 15 • In the Alternative Evaluation Process: – I-285 Top End (revive285) • EIS under development – SR 400 North of I-285 • Feasibility study underway

  7. New Planning Assumptions Moving Forward • All limited access highway new capacity in Metro Atlanta will likely be tolled • Remove HOV2+ to HOT3+ conversions from MPO TIP • Eliminate assumptions of long-term concession agreements • Evaluate lower-cost managed lane treatments

  8. Managed Lane Implementation Plan (MLIP) Overview • Updating MLSP as part of Managed Lanes Implementation Plan (MLIP) to: – Build upon previous MLSP goals – Reflect current funding constraints – Identify feasible locations for managed lane projects – Redefine and reprioritize projects from the previous plan based on current and future needs – Prioritize list of managed lane projects and accompanying financing strategies (P3 and traditional funding sources) • Incorporate recommendations into RTP and TIP update, as appropriate during 2013-2014

  9. Innovations and Emerging Findings-MLIP • Considering non-traditional Managed Lane solutions – Reversible lanes • Moveable barrier (new option) • Fixed barrier (existing option) – Shoulder lanes • Consider managing inside lane in peak periods and off-setting the removed general purpose capacity with travel on shoulder – Option: use reversible barrier and shoulder lanes in conjunction with each other • Intent is to not “reduce” current travel options for motorists

  10. Shoulder Lanes

  11. Shoulder Lanes – Typical Section BEFORE Source: Atlanta Regional Managed Lanes Implementation Plan, GDOT.

  12. Shoulder Lanes – Typical Section AFTER Source: Atlanta Regional Managed Lanes Implementation Plan, GDOT.

  13. Shoulder Lanes – Case Studies Shoulder Sign in Washington State • Washington State - US 2 – 1.5 miles during PM only • Minneapolis – 3.0 miles during AM & PM – Use left shoulder – Region wide bus shoulders • UK M42 Highway – 10 miles – Shoulders used in conjunction with variable speed limits • Netherlands – Use left and right shoulder

  14. Shoulder Lanes – Considerations • Shoulder pavement depth SR 400 Shoulder Lane (Atlanta, GA) • Shoulder width • Bridge spans and pillar locations • Entrance/exit ramp locations and volumes • Additional signage • Refuge sites (incidents and emergency access) • Segment length Source: www.itsinternational.com

  15. Shoulder Lanes-Lessons Learned • Manage expectations, not all shoulders lend themselves to travel • Capital costs vary dramatically based on existing infrastructure • Develop active traffic management system concept

  16. Shoulder Lanes-Lessons Learned • Pre-determine enforcement roles/processes, incident response, training, public outreach and education • Strategic placement of video cameras to monitor traffic • Strategic placement of emergency refuge areas, with proper signing

  17. Moveable Barriers

  18. Moveable Barriers – Typical Section BEFORE Source: Atlanta Regional Managed Lanes Implementation Plan, GDOT.

  19. Moveable Barriers – Typical Section AFTER Source: Atlanta Regional Managed Lanes Implementation Plan, GDOT.

  20. Moveable Barriers – Case Studies I-93 Rever versib ible le Lanes es in Boston ton • I-30/Thornton Freeway: Dallas, TX • 5.2 mile managed lane during AM & PM • Increased speeds from 22 to 41 mph • 1,200 – 1,400 vehicles per hour (vph) • I-93: Boston, MA • 6.0 mile managed lane during AM & PM • Flows at posted speed (55 mph) • 1,500 - 1,800 vph • No increase in accidents • I-70: West of Denver, CO • 13.5 mile EB Sundays • Significant decrease in EB travel times (79 to 41 min.) and increase in WB travel times (34 to 69 min.) • 2% annual increase in crashes (snow conditions) Source: Barrier Systems, Inc.

  21. Moveable Barriers – Considerations • Directional split of traffic and number of lanes • Estimated benefit (travel time savings) • Capital and Operating & Maintenance costs • Bridge spans and pillar locations • Median and/or shoulder widths • Borrow inside lane or shoulder for reverse direction and/or widen to the median • Logistics of rev. lanes • Additional signage • Segment length Source: Barrier Systems, Inc.

  22. Moveable Barriers-Lessons Learned • Plan ahead (traffic impacts, physical limitations, storage, etc) • Develop standard operating procedures • Enforcement (if operated as managed lane) • Public education • Dependable contractor (if operation is privatized)

  23. Moveable Barriers-Lessons Learned • Spare parts inventory • Aggressive preventative maintenance • Adequate staffing for enforcement, traffic incident management and maintenance • Consider multiple access points

  24. Priced Managed Lanes

  25. Georgia Priced Managed Lane Overview • High Occupancy Toll (HOT) – Mixture of occupancy and tolling components – 17 currently in operation across US, including 1 in Georgia (I-85 North) – Relatively easy to convert HOV lanes to HOT (need public support) – Requires additional enforcement/back office operations – Transit buses have free access • Express Toll Lanes (ETL) – All users pay (except transit buses) – 1 currently in operation in US (SR 91, CA), 2 planned in Georgia (I-75 South & I-75/I-575 North) – Easier to enforce/back office operations, when compared to HOT – Higher revenue than HOT

  26. Priced Managed Lanes – Case Studies • High Occupancy Toll (HOT) Lanes – I-95: Miami, FL SR 91 Express ess Toll oll Lanes es – SR 167: Seattle, WA – I-15: Salt Lake City, UT – I-394: Minneapolis, MN – I-10 Katy Freeway: Houston, TX • Express Toll Lanes (ETL) – SR 91: Orange County, CA

  27. Priced Managed Lanes

  28. Priced Managed Lanes-Lessons Learned • Tolling existing capacity (HOV and GP) can be challenging • Likely not self-supporting, requiring funding source, particularly in early years for O&M • Recognize ramp-up period for tolling, adjustment time for motorists • Interface between differing managed lane types (HOV to HOT) has been less of an issue than anticipated in MLSP

  29. Priced Managed Lanes-Lessons Learned • Ideally provide users with travel time estimates and speed limits in using dynamic signs • Complete camera coverage aids in operations and enforcement • Occupancy detection, declaration and enforcement impact revenues

  30. Priced Managed Lanes-Lessons Learned • Access points may need modification after open to traffic • Design and operation should be flexible enough to accommodate fluctuating traffic patterns • Adequate signage is necessary to identify access points • Evaluate potential funding resources early

  31. Priced Managed Lanes-Lessons Learned • Effective outreach is essential and must continue throughout project planning, implementation, and operation: – Reliable/faster trips – Transit access – Increased network capacity – Limited ability to build additional general purpose lane capacity – HOV can be an ineffective way to regulate demand

  32. Priced Managed Lanes – Emerging Trends • Multi-lane facilities • Dual purpose investments (auto and transit) • Regional network • Develop performance measures (speeds, throughput-both car and transit) • Moving from HOT based facilities to ETL facilities, with new construction

  33. Managed Lane Implementation Plan Next Steps

  34. Corridors Selected for Managed Lanes Evaluation

  35. Corridors Selected for Moveable Barrier Evaluation Limited Shoulders Directional Split, MARTA Rail Arterial, Grass Median Directional Split Grass Median Limited Shoulders Grass Median

  36. Corridors Selected for Shoulder Lane Evaluation Limited Shoulders Limited Shoulders Limited Shoulders Limited Shoulders

Download Presentation
Download Policy: The content available on the website is offered to you 'AS IS' for your personal information and use only. It cannot be commercialized, licensed, or distributed on other websites without prior consent from the author. To download a presentation, simply click this link. If you encounter any difficulties during the download process, it's possible that the publisher has removed the file from their server.

Recommend


More recommend