Mission Street Project Update Voyage 2070 Advance Operation Systems Using ASTRO Proactive Plan Selection Average and Split Variant operations Prepared By: Roger W. Boettcher ODOT Traffic Signal Control Specialist April 10, 2013

Key Concept for ASTRO Functions SVO uses the same cycle length and offset for the guest plans as that of the hosts. This means no transitions and results in a smooth re-allocation of cycle time to serve higher demand phases! This is a very important concept to note. No transition means the system stays in coordination even while making “on the fly adjustments” Voyage ASTRO reviews the V+KO data every 4 minutes and can make a plans selection every 5 minutes.

Presentation Outline Existing conditions HistoryGoals Project steps and installations Results and observations Conclusions

Existing Conditions Existing Conditions Inbound AM Outbound PM Problem intersec tion Problem Intersections Critical Intersection

Existing Conditions Existing Conditions Peak period travel times: 8 to 11 min. After installation of Voyage 2070 controllers travel times reduced to 4 to 4.5 minutes A reduction between 50-60%

History Originally conceived as a proof of product test facility for NWS Voyage Advanced Features firmware and as a 2070 controller training grounds 7 new 2070 controllers since January new 2070 controllers since January 2010

Goals Improve existing failed timing operations Resolve traffic flow issues at 3 major intersections: - 25 th Avenue - Airport / Turner Road - Hawthorne Avenue

Project Steps and Installations Step 1: replace 170 controllers and revise existing timing for 2070 operations Step 2: revise coordination offset reference to start of main street green Step 3: update Pedestrian and Red, Yellow clearance times to current standards

Project Steps and Installations Step 4: Gather background Volume, Occupancy and MOE data Step 5: Generate basic ‘Host’ timing plans optimized using Synchro Step 6: Observe operations of ‘Host’ timing plans using standard TOD operations

Project Steps and Installations Step 7: Continue to collect background Volume, Occupancy and MOE data for analysis Step 8: Develop additional ‘Guest’ plans for SVO operations Step 9: Install and activate Guest plans (SVO and SVI)

Project Steps and Installations Step 10: Adjust activation thresholds for optimal operations Step 11: Activate PPA operations for shoulder time of day Step 12: Adjust guest plan Splits for optimal performance (current operations) Step 13: Dynamic operations overlays to ASTRO

Project Steps and Installations Step 14: Compare NWS Voyage ASTRO operations to other similar systems Step 15: Publish findings and repeat successful processes on similar systems

Results and Observations Steps 1 through 3 yielded nearly 20% improvement - increased through put volumes - Reduced travel time delays for entire system

Results and Observations These reductions are believed to be due to the inclusion of POM and the use of “Fast-way mode” for transition recovery The use of “Fast way” transition seeking in 2070’s avoids dwell and transitions quicker than the 170’s Minor revisions were made to the red, yellow and pedestrian transition times bringing them to current standards

Results and Observations Steps 4-14 all rely on the identification of Master system Detectors Master System Detectors were determined for optimal flows What are Master System Detectors?

Require free flow for operations Part of local system detection at intersections Determine control thresholds for PPS, PPA and SVO operations

Results and Observations Free Flowing Volumes not easily found Three configurations were assessed The best fit

Results and Observations Two inbound master system detectors Three outbound master system detectors Outbound flow   Inbound flow Best Fit Layout

Results and Observations The plans library was populated with 16 ASTRO ‘host’ and ‘guest’ plans V+KO data resulted in appropriate TOD Operations

Results and Observations V+KO: flow rate over a detector, adjusted for occupancy Volume + (K * Occupancy) Volume + (K * Occupancy)

Results and Observations

Steps 7 through 10 were accomplished using the background data provided from volume logs -MOE termination graphs -Splits have been adjusted for Guest Plans Plans

Results and Observations Typical Monday on Mainline Mission Phase 2 (EB) no periods that could leave the phase early MOE Graph (Before)

Results and Observations After PPA and SVO is operational we see a better use of the split times and a reduction in Mainline Max-out MOE Graph (After)

Results and Observations After additional minor adjustments we see even better results MOE Graph (After)

Results and Observations MOE Graph (Before)

Results and Observations MOE Graph (After) After additional minor adjustments we see even better results

Results and Observations Capture fluctuations in the morning rush and make appropriate adjustments to the normal operational splits that the host plan is using The system responds nearly as quickly as the rise in the values and selects an appropriate plan Once the event passes the system makes a quick adjustment to the lower host plan and then to the low volume guest plan

Results and Observations AM event captured and plan selection made by SVO operations AM 07:55

Results and Observations SVI on/ TOD Host P8 TOD Host P5 SVI off/ SVO on Host P12 TOD Host P15 SVO off/ PPA on TOD Free P9 P8 P7 P6 P4 P5 P13 P11 P12 P16 P14 P15 P2 Free P1 P8 P7 Inbound Heavy Triad Plans 7, 8 and 9 Outbound Heavy Triad Plans 14, 15 and 16

Mission St. TOD Table

Results and Observations Steps 11 and 12 are currently in operation -Adjust guest plan splits for optimal - Currently fully activated using PPA and SVA - PPA is working on shoulder times in the evenings and mornings after mid-night an example of this operation is shown in the following slide an example of this operation is shown in the following slide

Results and Observations PPA allows extension of Plan coordination beyond TOD events and is operational on the shoulder times in the evenings and early morning after mid-night. 19:00 call to Free operations Free operations start here +/-

Step 13 Dynamic operations overlays to ASTRO features: Not yet Deployed - Auto-Max - Dynamic Phase Length - Dynamic Phase Reversal -Actuated Coordinated Operations - Coordinated Late Left Turn

Step 14 Comparison of Similar Systems PPS not currently active PPA 2 entries required SVO 16 entries required Master System Detectors 16 entries req’d.

Step 14 Traffic Responsive TransSuite Equivalent to PPA Operations Data

Conclusions Relatively easy process Very good results with any or all of these features PAA is probably the most useful out of the box feature SVO estimated 5 to 10 percent improvement for short term conditions Other features may be added as overlays These features may be installed with very little added cost to your systems

Thank You! Are there Any Questions?