1. ATM in California ITS Virginia June 5, 2014 Presented By
Dan Lukasik, P.E.
Parsons

2. ATM History in California
SR-14 Part-time HOV
SR-118 Part-time use of shoulder as HOV lane
Freeway to Freeway connector metering
Adaptive Traffic Signal Control
System Wide Adaptive Ramp Metering (SWARM) In Los Angeles
Dynamic Lane Management Project at I-110/5 Interchange (Junction Control)

3. Current ATM Projects Integrated Corridor Management I-880 Corridor
SR101 Corridor
San Diego ICMS
I-210 (Connected Corridors)
South Bay Dynamic Corridor Congestion Management (DCCM)
I-80 ICM Corridor
I-105 ATM Feasibility Study

4. I-80 ICM Project Overview

5. The Problem Over 20,000 vehicle-hours of delay per day
Inconsistent level of service (C to F)
Variable speeds (stop & go to 65 mph)
High incident rates: over 2,000 incidents annually
Un-reliability of travel (20 to>60 min)

6. The Solution Create a Well Balance System
Maintain Optimal Operational Viability
Proactively Avoid Flow Breakdown
Detect and Respond to Congestion Events Faster
Improve Safety
Manage Congested Flow When it Does Occur
Promote Transit Ridership and Mode Shifts
Clear Local Arterials from Diversion

7. System Implementation
unfunded
$8.0M
Total Project Cost: $79.1M

8. I-80 ATM Strategies 4 3 1 Lane Management System 2 Queue Warning
Adaptive
Ramp
Metering 2
Queue Warning 3
Variable Speed Assignment Signs (VASS)

9. I-80 ATM Strategies Other ICM Strategies Active Traffic Management
Dynamic Lane Management
Variable Speed Advisory Signs
Active Rerouting (Trailblazers)
Real-time Signal Adjustments (flushing)
Adaptive
Ramp Metering
Active Traffic Management
Transit
Signal Priority
Mode/Route Shift Choice
Advisories
511 Information
Dissemination
Expanded Traffic Signal
Coordination
Other ICM Strategies

10. Key I-80 ICM Strategies Adaptive Ramp Metering
Fuzzy Logic Algorithm
Active Traffic Management
Queue Warning
Variable Advisory Speed
Incident Management
Lane Management
Response Plans
Arterial Management
Arterial Trailblazer Signs
Signal Timing Flush Plans

11. Algorithms Adaptive Ramp Metering Variable Speed Advisory Signs SWARM
HERO/ALINIEA
Stratified Zone
Fuzzy Logic
Variable Speed Advisory Signs
The VASS algorithm will use speed smoothing in its algorithm
The VASS speed smoothing algorithm will be based on an 85th percentile speed calculation
The speed smoothing algorithm will be automatic with operator monitoring and override features.

12. System Integration
Integration of various agency subsystems working together
Arterial
Freeway
Transit
Emergency Responders
Incident Response
LUS
VASS

13. District 7 ATM Feasibility Study
Conduct literature review
Screen and evaluate suitable freeway corridors and ATM strategies
Develop and calibrate analysis tools
Use tools to evaluate the corridor-wide impacts and benefits of ATM strategies
Develop implementation plan for ATM strategies in the selected ATM corridor

14. Task 2: Literature Review
Objective
Synthesize National and international experience with ATM strategies
Potential Benefits (Empirical observations of impacts)
Deployment Considerations (Factors contributing to or diluting success of deployment)
Supplement with State and local findings wherever available
Supports the identification of likely range of impacts to be carried forward into Task 4

15. Task 2: Literature Review

16. Task 3 - ATM Corridor Assessment - Overview
Evaluation Criterion
Assessment Rating
I-210 (A)
12mi
SR-134 to I-605
I-210 (B)
15mi
I-605 to Padua Ave
I-710
21mi
Long Beach to Alhambra
I-105
17mi
Sepulveda Blvd to I-605
I-405 south
13mi
I-605 to I-110
I-405 mid
8mi
I-110 to I-105
I-405 north
18mi
I-105 to US-101
I-5
10mi
I-605 to SR-60
Congestion and Safety
Peak period congestion levels
High
Very High
Oversaturated
Accident rate
Moderate
Congestion variability
Characteristics
Truck traffic
Diversion potential
Very Good
Good
Poor
Shoulders available?
HOV/Managed lanes available?
Ramp/arterial storage
Excellent
ITS Infrastructure
Highway detection/surveillance
Arterial detection/surveillance
None
Ramp metering
Traveler information dissemination
Institutional Coordination
Agency coordination required
Low
Availability of ATM Champion
Unknown
Torrance unsupportive?
LA or Inglewood?
Available Analysis Tools
Mesoscopic Simulation No
AIMSUN-soon
Microscopic Simulation
VISSIM
Paramics
AIMSUN-soon?
Overall Potential Opportunity 

17. ATM Assessment Framework Deficiency Mapping

18. ATM Assessment Framework Detail Sheets

19. Task 5 - Evaluation of ATM Corridor/Location
Performance measures
Analysis scenarios
With/without optimal ATM combination
Assemble data
Develop/modify analysis tool
Evaluate impacts of ATM and estimate benefit-cost
Develop scope for ATM project (concept level design, capital costs, signing, operating plans)
Develop implementation plan (outreach & education, partnerships, marketing
Develop O&M plan (costs & risks)

20. Queue Warning Example: I-105 EB approaching I-110 Interchange
Roadway curvature & frequent speed drops due to I-110 Interchange ahead make this a good location for queue warning
STOPPED TRAFFIC AHEAD
SPEED LIMIT 35 X
SPEED LIMIT 35
Corridor-wide queue warning CMS spaced approx. every ½ to 1 mile

21. Dynamic Lane Management: I-105 EB approaching I-110 Interchange
Roadway curvature and frequent speed drops due to I-110 Interchange ahead make this a good location for queue warning
STOPPED TRAFFIC AHEAD
SPEED LIMIT 35 X
SPEED LIMIT 35
Corridor-wide dynamic lane management approx. every ½ to 1 mile

22. Hard Shoulder Running Example: I-105 WB approaching Long Beach Blvd
Video incident detection to verify shoulder unobstructed
USE HARD SHOULDER
SPEED LIMIT 45
SPEED LIMIT 45
Corridor-wide lane control gantries spaced approx. every 1 mile

23. Active Routing Example
Incident & Diversion Routing Msg (Type 1 – DMS)
Adjust Ramp Metering Rates
Primary Route
Alternate Route
Adjust Signal Timing Plans
Diversion Routing Msg (Type 2 – DMS)
HAR Messaging (Incident & Alt. Routing)
DELCAN PROPRIETARY

24. Variable Speed Limit Example: I-105 EB Approaching I-110 Interchange
Speed harmonization via VSL can be congestion-, incident-, and weather-responsive
STOPPED TRAFFIC AHEAD
SPEED LIMIT 35
SPEED LIMIT 35
Corridor-wide variable speed limit signs spaced approx. every ½ to 1 mile

25. Dynamic Junction Control Example: I-105 EB / I-710 Interchange
“Smart Studs“/
Channelizers
Demand responsive lane management for key interchange and ramp bottleneck locations

26. Predictive Traveler Information Ex: I-105 WB Approaching Long Beach Blvd
Predictive traveler information, generated from historical data and real-time modeling, can be displayed on CMS signs in advance of major decision points (e.g., junctions, transit stops). It can also feed into multimodal DSS.
DOWNTOWN
LAX
GREEN LINE LAX 25

27. Active Parking Management Example: Norwalk Green Line Station
Active parking management can provide travelers real-time parking availability information at the facility or on a mobile application. Parking availability can also be integrated into multimodal decision support systems.
SPACE AVAIL.
 EAST LOT FULL
 WEST LOT

28. Dynamic HOV Example: I-105 WB Approaching Long Beach Blvd
Dynamic HOV can be used to increase occupancy requirements (e.g., from 2 to 3+) in response to congestion in lane or to open the lane to all vehicles in response to roadway incidents blocking GP lanes
COLLISION AHEAD
HOV LANE OPEN TO ALL VEHICLES
COLLISION AHEAD
HOV LANE OPEN TO ALL VEHICLES
SPEED LIMIT 45 X X
SPEED LIMIT 45
Corridor-wide dynamic HOV CMS at each HOV lane entrance location

29. Thank You! Dan Lukasik daniel.lukasik@parsons.com 714-562-5725