1. Improving Intersection Performance
The Peek ATC Delivers

2. Better Intersection Performance with an ATC
Today I will briefly describe a few tools in the Peek ATC controller(s) that can help you move more traffic, with improved safety.
Jon Meusch, PE, Northwest Signal, PEEK, SIGNAL GROUP

3. INTRODUCTION Latest ATC Deployment
Hi, I’m Jon Meusch from Northwest Signal, based in Portland Oregon. My recent ATC experience has been in Minneapolis, where ATCs control the signal displays. Revenue service started June 14th.
Latest ATC Deployment
Green Line, Minneapolis, MN, June 2014

4. Freescale Power Quix 2 at 300 MHz
ESSENTIAL ATC ATTRIBUTES
300 MHz is needed to continue to properly time the signal displays, while time-stamping all of the high resolution data controllers with a 25 MHz processor are completely inadequate.
A BIG processor:
Freescale Power Quix 2 at 300 MHz

5. ESSENTIAL ATC ATTRIBUTES
The data needs a place to go, unless it is constantly be pulled from the controller. Peek very cleverly placed an SD card in their ATC.
Large memory capacity:
SD Card support for up to 2 GB

6. Developed in concert with Purdue University and INDOT
ATC OFFERS HIGH RESOLUTION DATA
Developed in concert with Purdue University and INDOT
Resolution of log entries is 0.1 seconds
Started with Volume/Occupancy
Expanded to include comprehensive areas of controller operations…
If quality data is available it’s mush easier to optimize signal operation. Peek was a teammate in the developing of the InDOT standard and an early adopter of the technology.

7. ATC OFFERS HIGH RESOLUTION DATA
This is the controller interface for the High Res data logging. A user could enable just Volume and Occupancy, and be limited to what some of our competitors offer, or the data collection can be widened to include almost every area of controller operations.
Selection of High Resolution
Data Types

8. ATC OFFERS PREPROCESSED DATA
Volumes, by Detector
Events, All Types
Phase/Ped Usage
Phase Terminations
Phase/Ped Delay Times
LOS, by Phase
LOS, by Unit
Transit Priority Efficiency
Coordination History
% Arrivals on Green
Platoon Ratios
Adaptive Control History
If High Res data seems a little intimidating, or if time doesn’t permit the data analysis, we offer access to all sorts of preprocessed data. All it takes is to access the controller front panel or a remote connection to collect the data and it’s viewable in seconds.
Data Types Ready for Immediate Viewing

9. ATC PREPROCESSED DATA EXAMPLE #1
Let’s say, for example, an unhappy motorist calls to complain about a traffic signal. He/she says, “I waited at 1st and Main Northbound for 5 minutes before my light turned green.” You ask, “What time did this take place.” They say, “Oh, about 2:25.” You take their name and number.
You log onto the signal network and collect the Service-Delay log from the controller. A few moments later you know that they waited exactly 105 seconds.

10. ATC PREPROCESSED DATA EXAMPLE #2
Later the planning department wants to know the Level of Service at a particular intersection. Maybe the intersection isn’t accessible via a network, but you’re able to stop by the intersection and look at the Service log. At its worst you find that it hits LOS C with an estimated 35 second delay to the average vehicle.

11. ATC PREPROCESSED DATA EXAMPLE #3
Later you have to review the work of a consultant that re-coordinated the signals down Main Street. A few mouse clicks or button presses are all that separates you from % Arrival on Green data. Hopefully the “after” values exceed the “before” values.

12. ATC PREPROCESSED DATA EXAMPLE #4
Perhaps you’re concerned about the overall green distribution at an intersection. A quick look at the Measure of Effectiveness log will show which phases are Maxing or Forcing too often.

13. Selected ATC “Power Functions”
Flashing Yellow LT Arrows
Lead/Lag
By TOD
Gap Dependent
Ped Protected
Preempt Options
Pedestrian Overlaps
Separate inputs
Separate timing
Max freedom of movement
Negative-Vehicle Protection
Relay Logic
Peer-to-peer
Transit handoff
Detector share
Preempt cascade
We could talk for HOURS about great features, but today’s format only allows for a quick snap shot.

14. Better Intersection Performance with an ATC
SUMMARY
Better Intersection Performance with an ATC
The ATC is a superior hardware platform
Data visibility is EXCELLENT
The feature set far EXCEEDs national standards

15. Jon Meusch, PE Jon.Meusch@nwsignal.com (503) 317-8469
Idaho, Montana, Utah
Tony Wheeler c:
Wyoming, Colorado, New Mexico, Arizona
John Hansen c: