I-75 South Managed Lanes Whats the Toll for a Hoverboard? Session 5 - PowerPoint PPT Presentation

I-75 South Managed Lanes What’s the Toll for a Hoverboard? Session 5 I-75 South Metro September 29, 2015

Presenters Moderator : Mark Demidovich, GDOT Panel:  Darryl VanMeter, GDOT  Keith Kunst, Arcadis  Shubendu Mohanty, Arcadis  Annie Gillespie, SRTA  Jennifer Tsien, Atkins  Bill Gunter, BBH M. Demidovich

I-75 South Managed Lanes Project History and Background Darryl VanMeter I-75 South Metro September 29, 2015

Overall Express Lanes Network D. VanMeter

Conceptual Overview  I-75 Express Lanes is identified as a Tier 1 recommendation in the Managed Lane System Plan, adopted by the State Transportation Board in December 2009.  From the MLSP GDOT recognized that:  Managed lanes would be defined as a set of lanes where operational strategies are proactively implemented and managed in response to changing conditions.  Managed lanes are considered to be complementary treatments to metro Atlanta’s interstate network  Managed lane solutions would preserve mobility choices and likely represent the most appropriate and cost beneficial improvements.  Transportation needs have outpaced traditional revenue sources D. VanMeter  In some locations it is not feasible to build all the additional lanes necessary to meet current and future needs.

Why Is This Project Important?  I-75 is an important local and regional corridor  One of the nation’s most traveled highways, especially in metro Atlanta  Primary connection between jobs and fast-growing Henry County  Safety, travel demand, regional growth and accessibility are major issues  Transportation investments are the solution  Improve roadway capacity, accessibility, efficiency  Address safety -- increased traffic congestion increases crash frequency  Context of Traffic volumes between SR 155 and I-75/675 lends credible opportunity for a ML solution D. VanMeter

Project Facts  The project will add two reversible barrier separated managed lane system along I ‐ 75 in Henry and Clayton Counties from SR 155 to SR 138 for 12.24 miles.  The express lanes are designed to improve the flow of traffic, increase travel options for motorists, transit and registered vanpool customers, provide reliable trip times, create jobs and bring economic benefits to the residents of this region.  The project funding sources: state-motor fuel, federal aid and toll revenue bonds. D. VanMeter

Project Facts  Express Toll Lanes (ETL) is the selected tolling alternative.  The project will add two reversible barrier separated managed lane system along I ‐ 75 in Henry and Clayton Counties from SR 155 to SR 138 for 12.24 miles.  The express lanes are designed to improve the flow of traffic, increase travel options for motorists, transit and registered vanpool customers, provide reliable trip times, create jobs and bring economic benefits to the residents of this region.  Total Project Phase: $226 Million . D. VanMeter

Project Schedule  Decision on Reversible System (2010)  Draft RFP – January 18, 2013  RFP – March 22, 2013  DB Letting – June 22, 2013  EA/FONSI Approval – June 28, 2013  Award – July 5, 2013  Groundbreaking - October 6, 2014  Open to Tolling – Early 2017 D. VanMeter

RACS Integration Org Chart D. VanMeter

I-75 South Metro D. VanMeter

Construction Progress D. VanMeter

Construction Progress D. VanMeter

I-75 South Managed Lanes Design-Build Challenges Keith Kunst I-75 South Metro September 29, 2015

Project Team/ D-B Effort Contracting Team Prime Contractor - CW Matthews Contracting Company ITS and Tolling Subcontractor – Brooks Berry Haynie Design Team Prime Design Engineer ARCADIS – 85% of the Design including 100% all ITS and Electrical Design Highway Lighting Subconsultant – Atlanta Consulting Engineers K. Kunst

Roadway Design Aspects of Toll Facilities  Basic Elements  Reversible System  Barrier Separated System with Access Control Gates  I-75 Southbound shifted out to Create Space for Express Lanes  70 mph Design Speed for Express Lanes, 55 mph for Slip Ramps K. Kunst

Roadway Design Aspects of Toll Facilities  Toll Plaza Design Restrictions  Profile Restrictions at Toll Zones (0.5% revised to 1%)  Highway Lighting throughout toll zones  Lane and Shoulder Width Considerations  Drainage and Metal Restrictions K. Kunst

Roadway Design Aspects of Toll Facilities cont’d…  Access Point Design  Shifts Interstate Mainline to create access points  Distinct Divergences for Exits  Proper entrance ramp tapers, gores, visibility  Distinct wrong way at entrances/exits  Coordinate design with gates K. Kunst

Roadway Design Aspects of Toll Facilities cont’d…  Accommodating Access Control System  Access Control Gate Sequencing Series of warning gates - Resistance gate to prevent - wrong way movements  Gate Heights and Mounting Accommodations Warning gate arms need to be - between 2’ - 6” and 3’ - 6” Gate positions need to account - for cross slopes Side barriers transitioned in - K. Kunst width for structural mounting

Roadway Design Aspects of Toll Facilities cont’d…  Locating Generator/ Tolling Maintenance Sites  Specialized Site Design  Facilitate SRTA Access  Incorporate Utilities  Special Access Point - I-75 at I-675 Split  Special Access Point - Jonesboro Road Access Drop Ramp K. Kunst

I-75 South Managed Lanes ITS Design Shubhendu Mohanty I-75 South Metro September 29, 2015

Role of ITS Traffic Management Tolling System Management Tolling System Operation General Purpose Reversible Express S. Mohanty Operation Lane Operation

ITS Components General Purpose Reversible Express Lane Tolling System Operation Operation Operation S. Mohanty

Network Topology Jonesboro Rd Hudson Br Rd Jodeco Rd ACS ACS Project consist of multiple ITS networks. #5 ACS #4 ACS HUB-BB ACS #3 #2 #1 ACS ACS #7 #6 HUB-U HUB-CC Legend SRTA Tolling System Network GDOT Navigator Network S. Mohanty Reversible Access Control System (ACS)

Reversible Access Control System Access Control Access Control Signalized Int. Signs Toll Rate Signs What are the components of a typical Access Travel Time Control System? Information Signs ACCESS CONTROL SYSTEM Resistance Gate Ramp Access Signs S. Mohanty Status Warning Beacon Gates

Emergency Generator Power Reversible Express Lane ITS Backbone Tolling System Necessary to maintain continuity of reversible Operation Infrastructure lane & tolling operation. Jonesboro Hudson Br Jodeco Rd Rd Rd S. Mohanty

Resource Sharing Shared Microwave Detection System Resource Sharing Between GDOT & SRTA Ductbank System Existing Navigator Network S. Mohanty Emergency Power System

Design Initiatives CCTV Line-of-Sight Verification Comprehensive Design of Electrical System Initiatives to address design challenges. Detailed Toll Site Plan Device Nomenclature S. Mohanty

I-75 South Managed Lanes Reversal Operations and Redundancy Annie Gillespie I-75 South Metro September 29, 2015

Reversing I-75 South  Typically two reversals per day  Mid-day reversal for outbound evening commute  Late-night reversal for the inbound morning commute  HERO units will be on-site during all reversals  Two dedicated units required for reversal  Check that the gates open/close properly at every entry and exit point  Can access the ACS cabinet to start/continue the reversal (if reversal fails A. Gillespie

Access Points  Reversals are completed by Access Point  Each Access Point contains equipment for both entrances and exits  Gates  Signs  Toll points  Signals/Blank-out Signs  Order of operations is pre-determined, site-specific, and operation specific A. Gillespie

Example of Slip Ramp Opening Toll Zone GDOT Advanced Status: Ina ctive Guide Sign SRTA Toll Rate Sign A. Gillespie 1. GDOT runs camera sweep of entire corridor – looking for debris and stalled vehicles that may be blocking the managed lanes prior to reversal

Example of Slip Ramp Opening Toll Zone GDOT Advanced Status: Active Guide Sign SRTA Toll Rate Sign A. Gillespie 2. GDOT sends command to SRTA that the managed lanes are ready to open/reverse – Toll Zone set to expect vehicles

Example of Slip Ramp Opening Toll Zone GDOT Advanced Status: Active Guide Sign SRTA Toll Rate Sign A. Gillespie 3. GDOT opens barrier and warning gates

Example of Slip Ramp Opening Toll Zone GDOT Advanced Status: Active Guide Sign SRTA Toll Rate Sign A. Gillespie 3. GDOT opens barrier and warning gates

Example of Slip Ramp Opening Toll Zone GDOT Advanced Status: Active Guide Sign SRTA Toll Rate Sign A. Gillespie 3. GDOT opens barrier and warning gates

Example of Slip Ramp Opening Toll Zone GDOT Advanced Status: Active Guide Sign SRTA Toll Rate Sign A. Gillespie 3. GDOT opens barrier and warning gates

Example of Slip Ramp Opening Toll Zone GDOT Advanced Status: Active Guide Sign SRTA Toll Rate Sign A. Gillespie 4. GDOT changes message on Advanced Guide Signs