I-85 Integrated Corridor Management. Jennifer Portanova, PE, CPM Sreekanth Sunny Nandagiri, PE, PMP

Transcription

1 Jennifer Portanova, PE, CPM Sreekanth Sunny Nandagiri, PE, PMP SDITE Meeting, Columbia, SC March 2017

2 Agenda The I-85 ICM project in Charlotte will serve as a model to deploy similar strategies throughout the state. Overview and Performance Measures Project overview and challenges Project Stakeholders Project Schedule Before Example ICM Triggers ICM Response Plans After Action meetings Summary / Next Steps 2

3 Overview What is Integrated Corridor Management? Better-informed travelers Optimization of existing infrastructure ICM Dynamic management of supply relative to demand Improved situational awareness Enhanced response and control 3

4 CMS plans ELCS Request Overview Lane Closure System LCS Ramp Meter Information System RMIS FMS Freeway Mgmt System Freeway Congestion Freeway Incidents Travel Times Planned Events CCTV Imagery CMS Status REMS Regional Event Mgmt System CHP Transit Express Lanes Congestion Pricing Arterial Construction RAMS Regional Arterial Mgmt System Arterial Congestion Intersection status System alarms Local traffic advisories Arterial Travel Time System 511 ATTS Weather NWS CPS Intelligent Virtual Corridor TMC (User Screen) XML Data (3 rd Party Applications) RTMS Congestion Pricing System Toll Travel Times Events Regional Transit Mgmt System Bus AVL Schedule Adherence Selected Stop/Route Data Panic alarms SPS Smart Parking System NPS Network Prediction System RTSS Real-Time Simulation System 4

5 Overview-Other ICM Projects Dallas, TX San Diego, CA Integrated operational systems Increased park and ride capacity and parking management system Decision support system Responsive traffic signal system Arterial street monitoring Traveler information Coordinated incident management HOV/HOT lane strategy Route and mode diversion Coordinated incident management Freeway coordinated ramp metering Congestion pricing on managed lanes Decision support system Congestion avoidance rewards Traveler information Transit signal priority Signal coordination on arterials with freeway ramp metering Physical bus priority on arterials Increased HOV occupancy requirements 5

6 Overview-Lessons Learned from Other Projects Big investment in Decision Support System, but underutilized in operations Need more operational integration among partners Need integrated traveler info website, but agencies want to maintain their own Consider ICM-Lite (i.e., diversion routes, travel times for alternate routes) Need TMC staff willing to change the way they do business and travelers willing to change their behavior DSS needs to operate faster than real time, be able to account for multiple scenarios occurring simultaneously and predict 30 min into the future Response plans need to be updated frequently 6

7 Performance Measures Performance Measure Definition Travel Time Reliability Corridor Throughput Signal Timing Efficiency Traffic Diversion ICM Response Plan Deployment Cost Effectiveness Public Perception Travel Time Index - a measure of congestion and conveys how much to multiply the ideal free flow travel time by to estimate the expected travel time for a certain route. VMT (or People Throughput) at an acceptable Level of Service (LOS D or better) during an incident. Queue Wait Time at US 74 Intersections (i.e., % of time stopped) or % Arrivals on Green during an incident. Number of travelers using traveler information systems who divert off of I-85 onto alternative routes (e.g., US 74). Number of times ICM response plans are correctly deployed on a monthly basis. Benefit Cost Ratio considering travel time & delay, emissions, fuel consumption, and safety benefits. Awareness of ICM and perceived benefits (survey based). 7

8 Previous Efforts-NCDOT Manual signal timing efforts Hurricane Evac. timing plans Construction Projects Incident detour plans along interstates 8

9 I-85 ICM Project Overview Project Vicinity: 20 miles on I-85-Gaston and Mecklenburg Counties; Limits on I-85 include roadway between exits 10 and 33; Location came up in the top 10 bottleneck report recently Signals : 94 signals on US-74 and on the ramps/loops from I-85-most of them isolated Focus: I-85 Diversion to US 74 with Signal Timing Optimization & Coordination Documentation: Each ICM step, process, trigger, response plan, performance measure I-85 Crashes: Crashes occur along I-85 in project vicinity on regular basis 9

10 I-85 ICM Project Overview IMAP Coverage Currently IMAP (Incident Management Assistance Patrol) coverage extends to US 321. Existing Incident Scenario-Response Process Detect and verify incident; notify State Highway Patrol, IMAP and other stakeholders; activate appropriate DMSs; populate TIMS and 511 systems; TMC monitoring; then return to default travel time messaging on DMSs after the event is over. TIM Meetings NCDOT Metrolina TMC currently conducts quarterly TIM meetings with the State Highway Patrol; Counties; Cities of Charlotte, CMPD, Belmont and Gastonia; emergency responders; wrecker services; and other NCDOT departments. Metrolina TMC The Metrolina TMC operates Monday Friday between 5:30am and 9:15pm. During nights and weekends the STOC takes over Metrolina operations. 10

11 I-85 ICM Project Challenges Uncoordinated Signals: There are signals in the corridor that are uncoordinated and need to tie into current systems for the I-85 ICM project using wireless communications. CCTV Coverage: Existing CCTV cameras, plus the proposed additional CCTV cameras to be installed on I-85 and US-74 should provide adequate coverage of the I-85 corridor. DMSs: Existing ones on I-85 and two additional ones on I-85 Dynamic Trailblazer signs: 51 needed along US-74 for the alternative routes Law Enforcement Coordinate with the law enforcement Software Automated process to communicate with DMSs, Signals, CCTV cameras and others Funding New to NC, funding through CMAQ?

12 I-85 ICM Project Stakeholders NCDOT Divisions 10, 12 including IMAP Design Units Metrolina and State Wide TMC s State Highway Patrol FHWA Transportation (various local entities) Emergency responders (State and Local) 12

13 I-85 ICM Project Schedule-Highlights Stakeholder meetings completed Working on CMAQ application for funding ICM Scenarios developed Training and SOPs need to be developed ICM Implementation -Fall of

14 Before Case I-85 NB between Exits 26-27, August 25, 2016 Tractor-trailer drove off embankment at approx. 1:30 PM Interstate eventually shut down with detour established 14

15 Detour Route Exit 26 NB, left at signal to NC 7 EB, right at signal to Belmont-Mt Holly Rd, left at signal to US 74 EB, left at signal to NC 273, right at signal back to I-85 NB 15

16 16 Congestion map 2:05 PM

17 17 Congestion Map 2:48 PM

18 18 Congestion Map 6:23 PM

19 ICM Triggers I-85 Full Closure (Directional or Both Directions) I-85 Lane Blocking Events (Minimum of One Lane Open) I-85 Queue Length (> 1 mile by Direction) Actual vs Expected Travel Speeds (> 2x for 30 minute minimum) Traffic Density (> 40 vehicles / mile for 30 minute minimum) Safety Hazard (Primary and/or Secondary Crashes) Special Events 19

20 ICM Response Plans-Full Closure-Steps Notification process Decision made on ICM implementation ICM signal timing plan implemented I-85 DMS signs, dynamic trailblazers on US-74 and others activated Regular updates and alert when incident is cleared ICM deactivated 20

21 I-85 Alternative Plans 12 Alternative plans were developed 6 for the NB direction on I-85 6 for the NB direction on I-85 21

22 After Action Reviews and Assessments Synopsis of Event Incident Time Line Review of Responders Actions (Arrivals and Departures) TMC Actions Discussions (Communication, Equipment and Resource Issues) Lessons Learned 22

23 Summary/Next Steps Stakeholder Meetings CMAQ Application-Secure Funding SOPs and Training Modules ITS Design and Construction ICM Implementation-Fall of

24 ICM is a traffic management tool in addition to the incident management tool to manage traffic proactively around the incidents Jennifer Portanova, PE, CPM 24

25 Jennifer Portanova, PE, CPM Sreekanth Sunny Nandagiri, PE, PMP SDITE Meeting, Columbia, SC March 2017